Pub Date : 2024-01-01Epub Date: 2024-07-03DOI: 10.1080/20008066.2024.2364469
Christina Schulte, Cedric Sachser, Rita Rosner, David Daniel Ebert, Anna-Carlotta Zarski
Background: Many youth with posttraumatic stress symptoms (PTSS) do not receive evidence-based care. Internet- and Mobile-Based Interventions (IMIs) comprising evidence-based trauma-focused components can address this gap, but research is scarce. Thus, we investigated the feasibility of a trauma-focused IMI for youth with PTSS.Methods: In a one-arm non-randomized prospective proof-of-concept study, 32 youths aged 15-21 years with clinically relevant PTSS (CATS ≥ 21) received access to a trauma-focused IMI with therapist guidance, comprising nine sessions on an eHealth platform accessible via web-browser. We used a feasibility framework assessing recruitment capability, sample characteristics, data collection, satisfaction, acceptability, study management abilities, safety aspects, and efficacy of the IMI in PTSS severity and related outcomes. Self-rated assessments took place pre-, mid-, post-intervention and at 3-month follow-up and clinician-rated assessments at baseline and post-intervention.Results: The sample mainly consisted of young adult females with interpersonal trauma and high PTSS levels (CATS, M = 31.63, SD = 7.64). The IMI sessions were found useful and comprehensible, whereas feasibility of trauma processing was perceived as difficult. Around one-third of participants (31%) completed the IMI's eight core sessions. The study completer analysis showed a significant reduction with large effects in self-rated PTSS at post-treatment [t(21) = 4.27; p < .001; d = 0.88] and follow-up [t(18) = 3.83; p = .001; d = 0.84], and clinician-rated PTSD severity at post-treatment [t(21) = 4.52; p < .001; d = 0.93]. The intention-to-treat analysis indicated significant reductions for PTSS at post-treatment and follow-up with large effect sizes (d = -0.97- -1.02). All participants experienced at least one negative effect, with the most common being the resurfacing of unpleasant memories (n = 17/22, 77%).Conclusion: The study reached highly burdened young adults. The IMI was accepted in terms of usefulness and comprehensibility but many youths did not complete all sessions. Exploration of strategies to improve adherence in trauma-focused IMIs for youth is warranted, alongside the evaluation of the IMI's efficacy in a subsequent randomized controlled trial.
背景:许多患有创伤后应激症状(PTSS)的青少年得不到循证治疗。基于互联网和移动设备的干预(IMI)包含以创伤为重点的循证内容,可以弥补这一不足,但这方面的研究还很少。因此,我们研究了针对患有 PTSS 的青少年的以创伤为重点的 IMI 的可行性:在一项单臂非随机前瞻性概念验证研究中,32 名年龄在 15-21 岁、患有临床相关的 PTSS(CATS ≥ 21)的青少年在治疗师的指导下接受了以创伤为重点的 IMI,其中包括通过网络浏览器访问的电子健康平台上的 9 个疗程。我们采用了一个可行性框架,对招募能力、样本特征、数据收集、满意度、可接受性、研究管理能力、安全性以及 IMI 对 PTSS 严重程度和相关结果的疗效进行了评估。在干预前、干预中、干预后和3个月随访时进行自评,在基线和干预后进行临床医生评定:结果:样本主要由有人际创伤和较高创伤后应激障碍水平的年轻女性组成(CATS,M = 31.63,SD = 7.64)。参与者认为 IMI 课程有用且易于理解,而创伤处理的可行性则被认为是困难的。约三分之一的参与者(31%)完成了 IMI 的八个核心环节。研究完成者分析表明,在治疗后[t(21) = 4.27; p d = 0.88]和随访[t(18) = 3.83; p = .001; d = 0.84],自我评定的创伤后应激障碍严重程度和临床医生评定的创伤后应激障碍严重程度[t(21) = 4.52; p d = 0.93]均有显著降低,且影响较大。意向治疗分析表明,在治疗后和随访期间,创伤后应激障碍严重程度显著降低,且效应大小较大(d = -0.97--1.02)。所有参与者都经历了至少一次负面影响,最常见的是不愉快记忆的重现(n = 17/22,77%):结论:这项研究覆盖了负担沉重的年轻人。IMI在实用性和可理解性方面都得到了认可,但许多年轻人并没有完成所有疗程。除了在随后的随机对照试验中评估 IMI 的疗效外,还需要探索提高青少年对以创伤为重点的 IMI 坚持率的策略。
{"title":"Feasibility of a trauma-focused internet- and mobile-based intervention for youth with posttraumatic stress symptoms.","authors":"Christina Schulte, Cedric Sachser, Rita Rosner, David Daniel Ebert, Anna-Carlotta Zarski","doi":"10.1080/20008066.2024.2364469","DOIUrl":"10.1080/20008066.2024.2364469","url":null,"abstract":"<p><p><b>Background:</b> Many youth with posttraumatic stress symptoms (PTSS) do not receive evidence-based care. Internet- and Mobile-Based Interventions (IMIs) comprising evidence-based trauma-focused components can address this gap, but research is scarce. Thus, we investigated the feasibility of a trauma-focused IMI for youth with PTSS.<b>Methods:</b> In a one-arm non-randomized prospective proof-of-concept study, 32 youths aged 15-21 years with clinically relevant PTSS (CATS ≥ 21) received access to a trauma-focused IMI with therapist guidance, comprising nine sessions on an eHealth platform accessible via web-browser. We used a feasibility framework assessing recruitment capability, sample characteristics, data collection, satisfaction, acceptability, study management abilities, safety aspects, and efficacy of the IMI in PTSS severity and related outcomes. Self-rated assessments took place pre-, mid-, post-intervention and at 3-month follow-up and clinician-rated assessments at baseline and post-intervention.<b>Results:</b> The sample mainly consisted of young adult females with interpersonal trauma and high PTSS levels (CATS, <i>M </i>= 31.63, <i>SD </i>= 7.64). The IMI sessions were found useful and comprehensible, whereas feasibility of trauma processing was perceived as difficult. Around one-third of participants (31%) completed the IMI's eight core sessions. The study completer analysis showed a significant reduction with large effects in self-rated PTSS at post-treatment [<i>t</i>(21) = 4.27; <i>p </i>< .001; <i>d </i>= 0.88] and follow-up [<i>t</i>(18) = 3.83; <i>p </i>= .001; <i>d </i>= 0.84], and clinician-rated PTSD severity at post-treatment [<i>t</i>(21) = 4.52; <i>p </i>< .001; <i>d </i>= 0.93]. The intention-to-treat analysis indicated significant reductions for PTSS at post-treatment and follow-up with large effect sizes (<i>d </i>= -0.97- -1.02). All participants experienced at least one negative effect, with the most common being the resurfacing of unpleasant memories (<i>n </i>= 17/22, 77%).<b>Conclusion:</b> The study reached highly burdened young adults. The IMI was accepted in terms of usefulness and comprehensibility but many youths did not complete all sessions. Exploration of strategies to improve adherence in trauma-focused IMIs for youth is warranted, alongside the evaluation of the IMI's efficacy in a subsequent randomized controlled trial.</p>","PeriodicalId":12055,"journal":{"name":"European Journal of Psychotraumatology","volume":"15 1","pages":"2364469"},"PeriodicalIF":4.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11225631/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141491474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-01Epub Date: 2024-07-18DOI: 10.1080/20008066.2024.2371762
Philipp Jann, Jessica Netzer, Tobias Hecker
Background: When traumatic events and losses intersect in the form of traumatic loss, these events can trigger both posttraumatic stress disorder and pathological grief.Objective: This systematic review investigates which characteristics differentiate between the development of the respective disorders or are associated with comorbidity.Method: A systematic literature search using Medline, PubMed, APA PsycInfo and Web of Science yielded 46 studies which met the inclusion criteria. In these studies, PTSD was assessed using 17 and pathological grief using 16 different validated instruments. In the quality assessment, 12 studies were classified as average, 30 as above average, and 4 as excellent. The investigated risk factors were categorized into 19 superordinate clusters and processed using narrative synthesis.Results: The relationship to the deceased, mental health issues, and religious beliefs seem to be associated specifically with pathological grief symptoms compared to PTSD symptoms. Social support and social emotions emerged as significant correlates and potential risk factors for both PTSD and pathological grief. Included studies had mainly cross-sectional designs.Conclusions: Differentiating factors between pathological grief and PTSD appear to exist. The results should be considered within the limitations of the heterogeneity of the included studies and the research field. There is a lack of studies (1) using a longitudinal study design, (2) starting data collection early following the traumatic loss, (3) using standardized, up-to-date measurement instruments and (4) including comorbidity in their analyses. Further research is urgently needed for more accurate (acute) screenings, prognoses, and interventions following traumatic loss.
背景:当创伤事件和损失以创伤性损失的形式交织在一起时,这些事件可能会引发创伤后应激障碍和病态悲伤:本系统性综述研究了哪些特征可区分创伤后应激障碍和病态悲伤,或与这两种障碍的并发症相关:方法:使用 Medline、PubMed、APA PsycInfo 和 Web of Science 进行系统性文献检索,结果有 46 项研究符合纳入标准。在这些研究中,创伤后应激障碍和病态悲伤分别使用了 17 种和 16 种不同的有效工具进行评估。在质量评估中,12 项研究被评为一般,30 项研究被评为高于一般,4 项研究被评为优秀。所调查的风险因素被分为 19 个上位群组,并采用叙事综合法进行处理:与创伤后应激障碍症状相比,与逝者的关系、心理健康问题和宗教信仰似乎与病态悲伤症状特别相关。社会支持和社会情感是创伤后应激障碍和病态悲伤的重要相关因素和潜在风险因素。所纳入的研究主要采用横断面设计:结论:病态悲伤和创伤后应激障碍之间似乎存在区别因素。结论:病态悲伤和创伤后应激障碍之间的区别因素似乎是存在的,但应考虑到所纳入研究的异质性和研究领域的局限性。目前缺乏以下研究:(1)采用纵向研究设计;(2)在创伤性失落发生后尽早开始数据收集;(3)采用标准化的最新测量工具;(4)在分析中纳入合并症。为了在创伤性失能后进行更准确的(急性)筛查、预后和干预,迫切需要开展进一步的研究。
{"title":"Traumatic loss: a systematic review of potential risk factors differentiating between posttraumatic stress disorder and prolonged grief disorder.","authors":"Philipp Jann, Jessica Netzer, Tobias Hecker","doi":"10.1080/20008066.2024.2371762","DOIUrl":"10.1080/20008066.2024.2371762","url":null,"abstract":"<p><p><b>Background:</b> When traumatic events and losses intersect in the form of traumatic loss, these events can trigger both posttraumatic stress disorder and pathological grief.<b>Objective:</b> This systematic review investigates which characteristics differentiate between the development of the respective disorders or are associated with comorbidity.<b>Method:</b> A systematic literature search using Medline, PubMed, APA PsycInfo and Web of Science yielded 46 studies which met the inclusion criteria. In these studies, PTSD was assessed using 17 and pathological grief using 16 different validated instruments. In the quality assessment, 12 studies were classified as average, 30 as above average, and 4 as excellent. The investigated risk factors were categorized into 19 superordinate clusters and processed using narrative synthesis.<b>Results:</b> The relationship to the deceased, mental health issues, and religious beliefs seem to be associated specifically with pathological grief symptoms compared to PTSD symptoms. Social support and social emotions emerged as significant correlates and potential risk factors for both PTSD and pathological grief. Included studies had mainly cross-sectional designs.<b>Conclusions:</b> Differentiating factors between pathological grief and PTSD appear to exist. The results should be considered within the limitations of the heterogeneity of the included studies and the research field. There is a lack of studies (1) using a longitudinal study design, (2) starting data collection early following the traumatic loss, (3) using standardized, up-to-date measurement instruments and (4) including comorbidity in their analyses. Further research is urgently needed for more accurate (acute) screenings, prognoses, and interventions following traumatic loss.</p>","PeriodicalId":12055,"journal":{"name":"European Journal of Psychotraumatology","volume":"15 1","pages":"2371762"},"PeriodicalIF":4.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11259072/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141633078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-01Epub Date: 2024-07-25DOI: 10.1080/20008066.2024.2379144
Maria Meier, Sina Kantelhardt, Laura Gurri, Christina Stadler, Marc Schmid, Vera Clemens, Aoife O'Donovan, Cyril Boonmann, David Bürgin, Eva Unternaehrer
Background: Early adversity increases the risk for mental and physical disorders as well as premature death. Epigenetic processes, and altered epigenetic aging in particular, might mediate these effects. While the literature that examined links between early adversity and epigenetic aging is growing, results have been heterogeneous.Objective: In the current work, we explored the link between early adversity and epigenetic aging in a sample of formerly out-of-home placed young adults.Method: A total of N = 117 young adults (32% women, age mean = 26.3 years, SD = 3.6 years) with previous youth residential care placements completed the Childhood Trauma Questionnaire (CTQ) and the Life Events Checklist (LEC-R) and provided blood samples for the analysis of DNA methylation using the Illumina Infinium MethylationEPIC BeadChip Microarray. Epigenetic age was estimated using Hovarth's and Hannum's epigenetic clocks. Furthermore, Hovarth's and Hannum's epigenetic age residuals were calculated as a proxy of epigenetic aging by regressing epigenetic age on chronological age. The statistical analysis plan was preregistered (https://osf.io/b9ev8).Results: Childhood trauma (CTQ) was negatively associated with Hannum's epigenetic age residuals, β = -.23, p = .004 when controlling for sex, BMI, smoking status and proportional white blood cell type estimates. This association was driven by experiences of physical neglect, β = -.25, p = .001. Lifetime trauma exposure (LEC-R) was not a significant predictor of epigenetic age residuals.Conclusion: Childhood trauma, and physical neglect in particular, was associated with decelerated epigenetic aging in our sample. More studies focusing on formerly institutionalized at-risk populations are needed to better understand which factors affect stress-related adaptations following traumatic experiences.
背景:早期逆境会增加精神和身体失调以及过早死亡的风险。表观遗传过程,尤其是表观遗传衰老的改变,可能会介导这些影响。虽然研究早期逆境与表观遗传衰老之间联系的文献越来越多,但结果却不尽相同:在目前的研究中,我们以曾经被安置在家庭外的年轻人为样本,探讨了早期逆境与表观遗传衰老之间的联系:共有 N = 117 名曾被安置在青少年寄宿机构的青壮年(32% 为女性,平均年龄 = 26.3 岁,SD = 3.6 岁)填写了童年创伤问卷(CTQ)和生活事件核对表(LEC-R),并提供了血液样本,以便使用 Illumina Infinium MethylationEPIC BeadChip 芯片分析 DNA 甲基化。表观遗传年龄是使用 Hovarth 和 Hannum 的表观遗传时钟估算的。此外,通过将表观遗传年龄与年代年龄进行回归,计算出 Hovarth 和 Hannum 的表观遗传年龄残差,作为表观遗传衰老的替代指标。统计分析计划已预先登记(https://osf.io/b9ev8):结果:在控制性别、体重指数、吸烟状况和白细胞类型比例估计值的情况下,童年创伤(CTQ)与汉纳姆表观遗传年龄残差呈负相关,β = -.23, p = .004。这种关联由身体被忽视的经历驱动,β = -.25, p = .001。终生创伤暴露(LEC-R)对表观遗传年龄残差的预测作用不显著:结论:在我们的样本中,童年创伤,尤其是身体忽视,与表观遗传衰老减速有关。为了更好地了解哪些因素会影响创伤经历后与压力相关的适应性,需要对曾被机构收容的高危人群进行更多的研究。
{"title":"Childhood trauma is linked to epigenetic age deceleration in young adults with previous youth residential care placements.","authors":"Maria Meier, Sina Kantelhardt, Laura Gurri, Christina Stadler, Marc Schmid, Vera Clemens, Aoife O'Donovan, Cyril Boonmann, David Bürgin, Eva Unternaehrer","doi":"10.1080/20008066.2024.2379144","DOIUrl":"10.1080/20008066.2024.2379144","url":null,"abstract":"<p><p><b>Background:</b> Early adversity increases the risk for mental and physical disorders as well as premature death. Epigenetic processes, and altered epigenetic aging in particular, might mediate these effects. While the literature that examined links between early adversity and epigenetic aging is growing, results have been heterogeneous.<b>Objective:</b> In the current work, we explored the link between early adversity and epigenetic aging in a sample of formerly out-of-home placed young adults.<b>Method:</b> A total of <i>N </i>= 117 young adults (32% women, age <i>mean </i>= 26.3 years, <i>SD </i>= 3.6 years) with previous youth residential care placements completed the Childhood Trauma Questionnaire (CTQ) and the Life Events Checklist (LEC-R) and provided blood samples for the analysis of DNA methylation using the Illumina Infinium MethylationEPIC BeadChip Microarray. Epigenetic age was estimated using Hovarth's and Hannum's epigenetic clocks. Furthermore, Hovarth's and Hannum's epigenetic age residuals were calculated as a proxy of epigenetic aging by regressing epigenetic age on chronological age. The statistical analysis plan was preregistered (https://osf.io/b9ev8).<b>Results:</b> Childhood trauma (CTQ) was negatively associated with Hannum's epigenetic age residuals, <i>β </i>= -.23, <i>p</i> = .004 when controlling for sex, BMI, smoking status and proportional white blood cell type estimates. This association was driven by experiences of physical neglect, <i>β </i>= -.25, <i>p</i> = .001. Lifetime trauma exposure (LEC-R) was not a significant predictor of epigenetic age residuals.<b>Conclusion:</b> Childhood trauma, and physical neglect in particular, was associated with decelerated epigenetic aging in our sample. More studies focusing on formerly institutionalized at-risk populations are needed to better understand which factors affect stress-related adaptations following traumatic experiences.</p>","PeriodicalId":12055,"journal":{"name":"European Journal of Psychotraumatology","volume":"15 1","pages":"2379144"},"PeriodicalIF":4.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11275517/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141758013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-01Epub Date: 2024-08-16DOI: 10.1080/20008066.2024.2390759
Charlotte Herriott, Gavin Campbell, Lauren Godier-McBard, Abigail Wood, Dominic Murphy
Background: The term military sexual trauma [MST] is increasingly used to describe instances of sexual harassment/assault that occur between serving personnel during military service. However, in the absence of a clear universal definition, MST is an increasingly contested term, with confusion about its scope, application to differing jurisdictions and implications for responses and treatment.Objective: This editorial provides a universal definition of MST, decoupled from any national system or framework.Method: Drawing on existing international evidence about the nature and impact of MST.Results and Conclusion: We argue that MST terminology provides a unique framing which recognises the institutional nature of MST victimisation and situates the context, behaviours, and impact on a continuum of violence.
{"title":"Defining military sexual trauma: establishing parameters and perspectives.","authors":"Charlotte Herriott, Gavin Campbell, Lauren Godier-McBard, Abigail Wood, Dominic Murphy","doi":"10.1080/20008066.2024.2390759","DOIUrl":"10.1080/20008066.2024.2390759","url":null,"abstract":"<p><p><b>Background:</b> The term military sexual trauma [MST] is increasingly used to describe instances of sexual harassment/assault that occur between serving personnel during military service. However, in the absence of a clear universal definition, MST is an increasingly contested term, with confusion about its scope, application to differing jurisdictions and implications for responses and treatment.<b>Objective:</b> This editorial provides a universal definition of MST, decoupled from any national system or framework.<b>Method:</b> Drawing on existing international evidence about the nature and impact of MST.<b>Results and Conclusion:</b> We argue that MST terminology provides a unique framing which recognises the institutional nature of MST victimisation and situates the context, behaviours, and impact on a continuum of violence.</p>","PeriodicalId":12055,"journal":{"name":"European Journal of Psychotraumatology","volume":"15 1","pages":"2390759"},"PeriodicalIF":4.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11332300/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141987637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-01Epub Date: 2024-10-17DOI: 10.1080/20008066.2024.2411881
Chun Feng, Anise M S Wu, You-Ping Chen, Yong Xing, Rui Zhai, Xiang-Yang Zhang
Background: Despite the practical importance of addressing the drug user's sleep problems to enhance the efficacy of treatment and rehabilitation, little is known about whether and how history of childhood maltreatment relates to this issue. This study takes an evolutionary perspective to investigate the associations between history of childhood maltreatment and sleep problems in adults with drug abuse via their emotion regulation difficulties, future-oriented coping, and anxiety.Methods: Participants were 604 male adults with drug abuse between the ages of 18-58 years (M = 36.20, SD = 8.17) in a drug rehabilitation centre in China. In addition to bivariate correlation analysis, path analysis was conducted to examine goodness-of-fit of the conceptual model, controlling for the effect of demographic characteristics.Results: Thirty-two percent of participants (n = 194) reported poor sleep quality (PSQI > 5), whereas sleep disturbance (81.3%), daytime dysfunction (77.3%), and sleep latency (66.5%) were the three most common problems among them. Correlation analysis supported the hypothesised positive correlations between poor sleep quality and childhood maltreatment, emotion regulation difficulties, and anxiety, and a negative correlation with future-oriented coping. Results of path analysis showed a significant indirect effect of childhood maltreatment on sleep problems via both emotion regulation difficulties and anxiety, whereas such effects via both future-oriented coping and anxiety were statistically nonsignificant.Conclusions: The findings suggest life history theory is applicable to understanding drug users' sleep problems, and interventions regarding both emotion regulation difficulties and anxiety can lessen the risk posed by childhood maltreatment on sleep problems.
{"title":"Application of life history theory to explain the association between childhood maltreatment and adulthood sleep problems in Chinese men with drug abuse: multiple mediating roles of emotion regulation, future-oriented coping, and anxiety.","authors":"Chun Feng, Anise M S Wu, You-Ping Chen, Yong Xing, Rui Zhai, Xiang-Yang Zhang","doi":"10.1080/20008066.2024.2411881","DOIUrl":"10.1080/20008066.2024.2411881","url":null,"abstract":"<p><p><b>Background:</b> Despite the practical importance of addressing the drug user's sleep problems to enhance the efficacy of treatment and rehabilitation, little is known about whether and how history of childhood maltreatment relates to this issue. This study takes an evolutionary perspective to investigate the associations between history of childhood maltreatment and sleep problems in adults with drug abuse via their emotion regulation difficulties, future-oriented coping, and anxiety.<b>Methods:</b> Participants were 604 male adults with drug abuse between the ages of 18-58 years (<i>M</i> = 36.20, <i>SD</i> = 8.17) in a drug rehabilitation centre in China. In addition to bivariate correlation analysis, path analysis was conducted to examine goodness-of-fit of the conceptual model, controlling for the effect of demographic characteristics.<b>Results:</b> Thirty-two percent of participants (<i>n</i> = 194) reported poor sleep quality (PSQI > 5), whereas sleep disturbance (81.3%), daytime dysfunction (77.3%), and sleep latency (66.5%) were the three most common problems among them. Correlation analysis supported the hypothesised positive correlations between poor sleep quality and childhood maltreatment, emotion regulation difficulties, and anxiety, and a negative correlation with future-oriented coping. Results of path analysis showed a significant indirect effect of childhood maltreatment on sleep problems via both emotion regulation difficulties and anxiety, whereas such effects via both future-oriented coping and anxiety were statistically nonsignificant.<b>Conclusions:</b> The findings suggest life history theory is applicable to understanding drug users' sleep problems, and interventions regarding both emotion regulation difficulties and anxiety can lessen the risk posed by childhood maltreatment on sleep problems.</p>","PeriodicalId":12055,"journal":{"name":"European Journal of Psychotraumatology","volume":"15 1","pages":"2411881"},"PeriodicalIF":4.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11488165/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142461186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-01Epub Date: 2024-01-03DOI: 10.1080/20008066.2023.2291932
Prachi H Bhuptani, Margarita Cruz-Sanchez, Lindsay M Orchowski
Background: Sexual victimization is a serious public health problem, with a range of negative impacts on mental and physical health. Responses that individuals get to disclosure of sexual victimization play an important role in recovery. With the increased use of social media, more survivors are talking about their experiences of sexual victimization online. Research is needed to document the correlates of online disclosure of sexual victimization.Objective: The current study examined the role of demographic characteristics, assault severity, coping strategies, and social isolation as putative correlates of disclosing sexual victimization online via the hashtag #MeToo.Methods: A sample of 637 adults recruited via social media who reported a history of sexual victimization since the age of 14 completed self-report surveys using online survey software to assess disclosure of sexual victimization, assault severity, coping strategies, and social isolation.Results: Multivariate analyses suggest that levels of emotion-focused coping were positively associated with the disclosure of sexual victimization online via #MeToo. Further, individuals who had experienced completed rape by verbal coercion were less likely to disclose via #MeToo, compared to individuals who experienced other forms of assault.Conclusion: Coping strategies and assault severity play an important role in determining whether survivors disclose sexual victimization online via #MeToo. Findings suggest that individuals may disclose via #MeToo to seek support or express their emotions. Further, individuals whose sexual victimization experiences do not conform to 'typical' sexual victimization experiences are less likely to disclose via #MeToo.
{"title":"Cross-sectional examination of correlates of sexual victimization disclosure via #MeToo.","authors":"Prachi H Bhuptani, Margarita Cruz-Sanchez, Lindsay M Orchowski","doi":"10.1080/20008066.2023.2291932","DOIUrl":"10.1080/20008066.2023.2291932","url":null,"abstract":"<p><p><b>Background</b>: Sexual victimization is a serious public health problem, with a range of negative impacts on mental and physical health. Responses that individuals get to disclosure of sexual victimization play an important role in recovery. With the increased use of social media, more survivors are talking about their experiences of sexual victimization online. Research is needed to document the correlates of online disclosure of sexual victimization.<b>Objective</b>: The current study examined the role of demographic characteristics, assault severity, coping strategies, and social isolation as putative correlates of disclosing sexual victimization online via the hashtag #MeToo.<b>Methods</b>: A sample of 637 adults recruited via social media who reported a history of sexual victimization since the age of 14 completed self-report surveys using online survey software to assess disclosure of sexual victimization, assault severity, coping strategies, and social isolation.<b>Results</b>: Multivariate analyses suggest that levels of emotion-focused coping were positively associated with the disclosure of sexual victimization online via #MeToo. Further, individuals who had experienced completed rape by verbal coercion were less likely to disclose via #MeToo, compared to individuals who experienced other forms of assault.<b>Conclusion</b>: Coping strategies and assault severity play an important role in determining whether survivors disclose sexual victimization online via #MeToo. Findings suggest that individuals may disclose via #MeToo to seek support or express their emotions. Further, individuals whose sexual victimization experiences do not conform to 'typical' sexual victimization experiences are less likely to disclose via #MeToo.</p>","PeriodicalId":12055,"journal":{"name":"European Journal of Psychotraumatology","volume":"15 1","pages":"2291932"},"PeriodicalIF":5.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10769140/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139080450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-01Epub Date: 2024-03-15DOI: 10.1080/20008066.2024.2320040
J E Ruisch, D C D Havermans, E M J Gielkens, M Olff, M A M J Daamen, S P J van Alphen, M van Kordenoordt, J M G A Schols, K R J Schruers, S Sobczak
Background: Posttraumatic stress disorder (PTSD) is considered an independent risk factor for dementia. Despite the (clinical) evidence that PTSD is associated with neuropsychiatric symptoms in people with dementia, studies on its prevalence and clinical manifestation are limited, and their quality is affected by the lack of a structured method to diagnose PTSD in this population. The primary aim of the current study is to validate the 'TRAuma and DEmentia' interview as a diagnostic tool for PTSD in people with dementia and to test feasibility of EMDR treatment for people with PTSD and dementia.Methods: This prospective multi-centre study is divided into two parts. In study A, 90 participants with dementia will be included to test the criterion validity, inter-rater reliability and feasibility of the 'TRAuma and DEmentia' interview. In study B, 29 participants with dementia and PTSD will receive eye movement desensitisation and reprocessing therapy by a trained psychologist, and 29 participants with dementia and PTSD will be placed on the waiting list control group.Conclusion: This study aims to improve the diagnostic process of PTSD and to assess the effects of eye movement desensitisation and reprocessing treatment in people with dementia living in Dutch care facilities.Trial registration: NL70479.068.20 / METC 20-063 / OSF registration: https://doi.org/10.17605/OSF.IO/AKW4F.
{"title":"Posttraumatic stress disorder in people with dementia: study protocol.","authors":"J E Ruisch, D C D Havermans, E M J Gielkens, M Olff, M A M J Daamen, S P J van Alphen, M van Kordenoordt, J M G A Schols, K R J Schruers, S Sobczak","doi":"10.1080/20008066.2024.2320040","DOIUrl":"10.1080/20008066.2024.2320040","url":null,"abstract":"<p><p><b>Background:</b> Posttraumatic stress disorder (PTSD) is considered an independent risk factor for dementia. Despite the (clinical) evidence that PTSD is associated with neuropsychiatric symptoms in people with dementia, studies on its prevalence and clinical manifestation are limited, and their quality is affected by the lack of a structured method to diagnose PTSD in this population. The primary aim of the current study is to validate the 'TRAuma and DEmentia' interview as a diagnostic tool for PTSD in people with dementia and to test feasibility of EMDR treatment for people with PTSD and dementia.<b>Methods:</b> This prospective multi-centre study is divided into two parts. In study A, 90 participants with dementia will be included to test the criterion validity, inter-rater reliability and feasibility of the 'TRAuma and DEmentia' interview. In study B, 29 participants with dementia and PTSD will receive eye movement desensitisation and reprocessing therapy by a trained psychologist, and 29 participants with dementia and PTSD will be placed on the waiting list control group.<b>Conclusion:</b> This study aims to improve the diagnostic process of PTSD and to assess the effects of eye movement desensitisation and reprocessing treatment in people with dementia living in Dutch care facilities.<b>Trial registration:</b> NL70479.068.20 / METC 20-063 / OSF registration: https://doi.org/10.17605/OSF.IO/AKW4F.</p>","PeriodicalId":12055,"journal":{"name":"European Journal of Psychotraumatology","volume":"15 1","pages":"2320040"},"PeriodicalIF":5.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10946268/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140131153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-01Epub Date: 2024-02-21DOI: 10.1080/20008066.2024.2317055
Amelie Pettrich, Michael Friedrich, Yuriy Nesterko, Heide Glaesmer
Background: In attempts to elucidate PTSD, recent factor analytic studies resulted in complex models with a proliferating number of factors that lack psychometrical and clinical utility. Recently, suggestions have been made to optimize factor analytic practices to meet a refined set of statistical and psychometric criteria.Objective: This study aims to assess the factorial structure of the German version of the PCL-5, implementing recent methodological advancements to address the risk of overfitting models. In doing so we diverge from traditional factor analytical research on PTSD.Method: On a large-scale sample of the German general population (n = 1625), exploratory factor analyses were run to investigate the dimensionality found within the data. Subsequently, we validated and compared all model suggestions from our preliminary analyses plus all standard and common alternative PTSD factor models (including the ICD-11 model) from previous literature with confirmatory factor analyses. We not only consider model fit indices based on WLSMV estimation but also deploy criteria such as favouring less complex models with a parsimonious number of factors, sufficient items per factor, low inter-factor correlations and number of model misspecifications.Results: All tested models showed adequate to excellent fit in respect to traditional model fit indices; however, models with two or more factors increasingly failed to meet other statistical and psychometric criteria.Conclusion: Based on the results we favour a two-factor bifactor model with a strong general PTSD factor and two less dominant specific factors - one factor with trauma-related symptoms (re-experiencing and avoidance) and one factor with global psychological symptoms (describing the trauma's higher-order impact on mood, cognition, behaviour and arousal).From the perspective of clinical utility, we recommend the cut-off scoring method for the German version of the PCL-5. Basic psychometric properties and scale characteristics are provided.
{"title":"The German PCL-5: evaluating structural validity in a large-scale sample of the general German population.","authors":"Amelie Pettrich, Michael Friedrich, Yuriy Nesterko, Heide Glaesmer","doi":"10.1080/20008066.2024.2317055","DOIUrl":"10.1080/20008066.2024.2317055","url":null,"abstract":"<p><p><b>Background:</b> In attempts to elucidate PTSD, recent factor analytic studies resulted in complex models with a proliferating number of factors that lack psychometrical and clinical utility. Recently, suggestions have been made to optimize factor analytic practices to meet a refined set of statistical and psychometric criteria.<b>Objective:</b> This study aims to assess the factorial structure of the German version of the PCL-5, implementing recent methodological advancements to address the risk of overfitting models. In doing so we diverge from traditional factor analytical research on PTSD.<b>Method:</b> On a large-scale sample of the German general population (<i>n</i> = 1625), exploratory factor analyses were run to investigate the dimensionality found within the data. Subsequently, we validated and compared all model suggestions from our preliminary analyses plus all standard and common alternative PTSD factor models (including the ICD-11 model) from previous literature with confirmatory factor analyses. We not only consider model fit indices based on WLSMV estimation but also deploy criteria such as favouring less complex models with a parsimonious number of factors, sufficient items per factor, low inter-factor correlations and number of model misspecifications.<b>Results:</b> All tested models showed adequate to excellent fit in respect to traditional model fit indices; however, models with two or more factors increasingly failed to meet other statistical and psychometric criteria.<b>Conclusion:</b> Based on the results we favour a two-factor bifactor model with a strong general PTSD factor and two less dominant specific factors - one factor with trauma-related symptoms (re-experiencing and avoidance) and one factor with global psychological symptoms (describing the trauma's higher-order impact on mood, cognition, behaviour and arousal).From the perspective of clinical utility, we recommend the cut-off scoring method for the German version of the PCL-5. Basic psychometric properties and scale characteristics are provided.</p>","PeriodicalId":12055,"journal":{"name":"European Journal of Psychotraumatology","volume":"15 1","pages":"2317055"},"PeriodicalIF":5.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10883083/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139912408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-01Epub Date: 2024-03-01DOI: 10.1080/20008066.2024.2321761
Zhiyong Xu, Bingnan Zhao, Zhen Zhang, Xuan Wang, Yifan Jiang, Min Zhang, Ping Li
Background: Nurses in emergency departments are at a high risk of experiencing secondary traumatic stress because of their frequent exposure to trauma patients and high-stress environments.Objective: This systematic review and meta-analysis aimed to determine the overall prevalence of secondary traumatic stress among emergency nurses and to identify the contributing factors.Method: We conducted a systematic search for cross-sectional studies in databases such as PubMed, Web of Science, Embase, CINAHL, Wanfang Database, and China National Knowledge Internet up to October 21, 2023. The Joanna Briggs Institute's appraisal checklists for prevalence and analytical cross-sectional studies were used for quality assessment. Heterogeneity among studies was assessed using Cochrane's Q test and the I2 statistic. A random effects model was applied to estimate the pooled prevalence of secondary traumatic stress, and subgroup analyses were performed to explore sources of heterogeneity. Descriptive analysis summarized the associated factors.Results: Out of 345 articles retrieved, 14 met the inclusion criteria, with 11 reporting secondary traumatic stress prevalence. The pooled prevalence of secondary traumatic stress among emergency nurses was 65% (95% CI: 58%-73%). Subgroup analyses indicated the highest prevalence in Asia (74%, 95% CI: 72%-77%), followed by North America (59%, 95% CI: 49%-72%) and Europe (53%, 95% CI: 29%-95%). Nine studies identified associated factors, including personal, work-related, and social factors. In the subgroup of divided by recruitment period, emergency department nurses in the COVID-19 outbreak period had a higher prevalence of secondary traumatic stress (70%, 95% CI: 62%-78%).Conclusions: Secondary traumatic stress prevalence is notably high among emergency department nurses, with significant regional variations and period differences. The factors affecting secondary traumatic stress also varied across studies. Future research should focus on improving research designs and sample sizes to pinpoint risk factors and develop prevention strategies.Registration: PROSPERO CRD42022301167.
{"title":"Prevalence and associated factors of secondary traumatic stress in emergency nurses: a systematic review and meta-analysis.","authors":"Zhiyong Xu, Bingnan Zhao, Zhen Zhang, Xuan Wang, Yifan Jiang, Min Zhang, Ping Li","doi":"10.1080/20008066.2024.2321761","DOIUrl":"10.1080/20008066.2024.2321761","url":null,"abstract":"<p><p><b>Background:</b> Nurses in emergency departments are at a high risk of experiencing secondary traumatic stress because of their frequent exposure to trauma patients and high-stress environments.<b>Objective:</b> This systematic review and meta-analysis aimed to determine the overall prevalence of secondary traumatic stress among emergency nurses and to identify the contributing factors.<b>Method:</b> We conducted a systematic search for cross-sectional studies in databases such as PubMed, Web of Science, Embase, CINAHL, Wanfang Database, and China National Knowledge Internet up to October 21, 2023. The Joanna Briggs Institute's appraisal checklists for prevalence and analytical cross-sectional studies were used for quality assessment. Heterogeneity among studies was assessed using Cochrane's Q test and the <i>I</i><sup>2</sup> statistic. A random effects model was applied to estimate the pooled prevalence of secondary traumatic stress, and subgroup analyses were performed to explore sources of heterogeneity. Descriptive analysis summarized the associated factors.<b>Results:</b> Out of 345 articles retrieved, 14 met the inclusion criteria, with 11 reporting secondary traumatic stress prevalence. The pooled prevalence of secondary traumatic stress among emergency nurses was 65% (95% CI: 58%-73%). Subgroup analyses indicated the highest prevalence in Asia (74%, 95% CI: 72%-77%), followed by North America (59%, 95% CI: 49%-72%) and Europe (53%, 95% CI: 29%-95%). Nine studies identified associated factors, including personal, work-related, and social factors. In the subgroup of divided by recruitment period, emergency department nurses in the COVID-19 outbreak period had a higher prevalence of secondary traumatic stress (70%, 95% CI: 62%-78%).<b>Conclusions:</b> Secondary traumatic stress prevalence is notably high among emergency department nurses, with significant regional variations and period differences. The factors affecting secondary traumatic stress also varied across studies. Future research should focus on improving research designs and sample sizes to pinpoint risk factors and develop prevention strategies.<b>Registration:</b> PROSPERO CRD42022301167.</p>","PeriodicalId":12055,"journal":{"name":"European Journal of Psychotraumatology","volume":"15 1","pages":"2321761"},"PeriodicalIF":5.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10911249/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139996018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-01Epub Date: 2024-03-21DOI: 10.1080/20008066.2024.2324631
Jana Stein, Rayan El-Haj-Mohamad, Nadine Stammel, Max Vöhringer, Birgit Wagner, Yuriy Nesterko, Maria Böttche, Christine Knaevelsrud
Background: Maladaptive trauma appraisal plays an important role in the development and maintenance of posttraumatic stress disorder (PTSD). While studies have demonstrated the effectiveness of exposure and cognitive treatments for PTSD symptomatology, the effect of such treatments on specific trauma appraisals is still not well understood.Objective: The study investigated the effect of an exposure and a cognitive restructuring internet-based treatment on specific trauma appraisals in Arabic-speaking participants with PTSD.Method: 334 participants received either an exposure (n = 167) or a cognitive restructuring (n = 167) internet-based treatment. PTSD symptom severity (PCL-5) and specific trauma appraisals (TAQ) were assessed at pre- and post-treatment. Changes in specific trauma appraisals within and between the two treatments were analyzed using multi-group change modelling. Associations between changes in PTSD symptom severity and changes in trauma appraisals were evaluated using Pearson product-moment correlation. For both treatments, participants with versus without reliable improvement were compared regarding changes in specific trauma appraisals using Welch tests. Analyses were performed on 100 multiple imputed datasets.Results: Both treatments yielded significant changes in shame, self-blame, fear, anger, and alienation (all ps < .001). Changes in betrayal were only significant in the cognitive restructuring treatment (p < .001). There was no evidence of differences between treatments for any specific trauma appraisal. Changes in PTSD symptom severity were significantly associated with changes in trauma appraisals (all ps < .001). In both treatments, participants who experienced reliable improvement in PTSD symptom severity showed significantly larger pre- to post-treatment changes in specific trauma appraisals compared to those without reliable improvement. Again, differences in betrayal were only significant in the cognitive restructuring treatment.Conclusions: The findings indicate that both treatments are effective in reducing trauma appraisals in Arabic-speaking people with PTSD. Changes in trauma appraisal seem to be associated with changes in PTSD symptomatology.Trial registration: German Clinical Trials Register identifier: DRKS00010245.
{"title":"Changes in trauma appraisal during brief internet-based exposure and cognitive restructuring treatment for Arabic-speaking people with PTSD.","authors":"Jana Stein, Rayan El-Haj-Mohamad, Nadine Stammel, Max Vöhringer, Birgit Wagner, Yuriy Nesterko, Maria Böttche, Christine Knaevelsrud","doi":"10.1080/20008066.2024.2324631","DOIUrl":"10.1080/20008066.2024.2324631","url":null,"abstract":"<p><p><b>Background:</b> Maladaptive trauma appraisal plays an important role in the development and maintenance of posttraumatic stress disorder (PTSD). While studies have demonstrated the effectiveness of exposure and cognitive treatments for PTSD symptomatology, the effect of such treatments on specific trauma appraisals is still not well understood.<b>Objective:</b> The study investigated the effect of an exposure and a cognitive restructuring internet-based treatment on specific trauma appraisals in Arabic-speaking participants with PTSD.<b>Method:</b> 334 participants received either an exposure (<i>n</i> = 167) or a cognitive restructuring (<i>n</i> = 167) internet-based treatment. PTSD symptom severity (PCL-5) and specific trauma appraisals (TAQ) were assessed at pre- and post-treatment. Changes in specific trauma appraisals within and between the two treatments were analyzed using multi-group change modelling. Associations between changes in PTSD symptom severity and changes in trauma appraisals were evaluated using Pearson product-moment correlation. For both treatments, participants with versus without reliable improvement were compared regarding changes in specific trauma appraisals using Welch tests. Analyses were performed on 100 multiple imputed datasets.<b>Results:</b> Both treatments yielded significant changes in shame, self-blame, fear, anger, and alienation (all <i>p</i>s < .001). Changes in betrayal were only significant in the cognitive restructuring treatment (<i>p</i> < .001). There was no evidence of differences between treatments for any specific trauma appraisal. Changes in PTSD symptom severity were significantly associated with changes in trauma appraisals (all <i>p</i>s < .001). In both treatments, participants who experienced reliable improvement in PTSD symptom severity showed significantly larger pre- to post-treatment changes in specific trauma appraisals compared to those without reliable improvement. Again, differences in betrayal were only significant in the cognitive restructuring treatment.<b>Conclusions:</b> The findings indicate that both treatments are effective in reducing trauma appraisals in Arabic-speaking people with PTSD. Changes in trauma appraisal seem to be associated with changes in PTSD symptomatology.<b>Trial registration:</b> German Clinical Trials Register identifier: DRKS00010245.</p>","PeriodicalId":12055,"journal":{"name":"European Journal of Psychotraumatology","volume":"15 1","pages":"2324631"},"PeriodicalIF":5.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10962287/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140179539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}