Background and Objective Obstructive sleep apnea (OSA) has significant effects on quality of life and may lead to cognitive impairments. Continuous positive airway pressure (CPAP) is the standard treatment for OSA and has been shown to improve sleep disturbances and daytime dysfunction. In this study, we aimed to assess the effects of CPAP on white matter (WM) integrity using longitudinal diffusion tensor imaging (DTI) tests.Methods Twenty-two male patients with moderate to severe OSA were recruited, and thepatients underwent DTI scanning before and 6–44 months after CPAP treatment. Sixteen male patients with untreated OSA who were not compliant with CPAP were included as a reference group. We compared the functional anisotropy (FA) values between baseline and follow-up magnetic resonance imaging in both the CPAP and untreated groups using tract-specific statistical analysis (TSSA) method.Results The TSSA analysis showed that FA values in the middle part of the right corticospinal tract were increased after treatment in the CPAP group. In the untreated group, no significant change in FA value was observed between baseline and follow-up. In the CPAP group, the post-treatment FA value in the anterior part of the right anterior thalamic radiation was significantly correlated with the duration of CPAP therapy, after controlling for age, body mass index, and baseline FA value.Conclusions Our study suggests that long-term CPAP treatment could gradually reverse OSA-induced injury to the WM microstructure, particularly WM associated with the motor and limbic systems. The study findings provide new insights into the mechanisms of cognitive improvement after CPAP treatment in patients with OSA.
{"title":"Effects of Continuous Positive Airway Pressure on White Matter Microstructure in Patients With Obstructive Sleep Apnea","authors":"Hea Ree Park, Hye Ryun Kim, J. Seong, E. Joo","doi":"10.17241/smr.2022.01459","DOIUrl":"https://doi.org/10.17241/smr.2022.01459","url":null,"abstract":"Background and Objective Obstructive sleep apnea (OSA) has significant effects on quality of life and may lead to cognitive impairments. Continuous positive airway pressure (CPAP) is the standard treatment for OSA and has been shown to improve sleep disturbances and daytime dysfunction. In this study, we aimed to assess the effects of CPAP on white matter (WM) integrity using longitudinal diffusion tensor imaging (DTI) tests.Methods Twenty-two male patients with moderate to severe OSA were recruited, and thepatients underwent DTI scanning before and 6–44 months after CPAP treatment. Sixteen male patients with untreated OSA who were not compliant with CPAP were included as a reference group. We compared the functional anisotropy (FA) values between baseline and follow-up magnetic resonance imaging in both the CPAP and untreated groups using tract-specific statistical analysis (TSSA) method.Results The TSSA analysis showed that FA values in the middle part of the right corticospinal tract were increased after treatment in the CPAP group. In the untreated group, no significant change in FA value was observed between baseline and follow-up. In the CPAP group, the post-treatment FA value in the anterior part of the right anterior thalamic radiation was significantly correlated with the duration of CPAP therapy, after controlling for age, body mass index, and baseline FA value.Conclusions Our study suggests that long-term CPAP treatment could gradually reverse OSA-induced injury to the WM microstructure, particularly WM associated with the motor and limbic systems. The study findings provide new insights into the mechanisms of cognitive improvement after CPAP treatment in patients with OSA.","PeriodicalId":37318,"journal":{"name":"Sleep Medicine Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42904797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jana Sleiman, E. Cho, Dongin Lee, Inn-Kyu Cho, Seockhoon Chung, O. Uygur
Background and Objective We aimed to investigate whether viral anxiety affects insomnia severity in patients with insomnia disorder during the coronavirus disease 2019 (COVID-19) pandemic. In addition, we examined whether viral anxiety mediates the influence of dysfunctional beliefs about sleep on insomnia severity.Methods The medical records of 111 patients who visit the sleep clinic from September 2021 to May 2022 were reviewed. Patients’ symptoms were rated with rating scales including Insomnia Severity Index (ISI), Stress and Anxiety to Viral Epidemics-6 items (SAVE-6), Dysfunctional Beliefs and Attitudes about Sleep-16 items (DBAS-16), Patient Health Questionnaire-9 items (PHQ-9), Epworth Sleepiness Scale, and discrepancy between desired time in bed and desired total sleep time (the DBST index).Results The SAVE-6 score was not significantly correlated with ISI score among insomnia patients. Linear regression analysis showed that the ISI score was expected by PHQ-9 (β = 0.21, p = 0.038) and DBAS-16 (β = 0.42, p < 0.001). Mediation analysis showed that viral anxiety did not mediate the influence of dysfunctional beliefs about sleep on insomnia severity.Conclusions We could not observe the mediating effect of viral anxiety on the association between dysfunctional beliefs about sleep on insomnia severity. Though COVID-somnia was one of big issues in this COVID-19 pandemic, the influence of virus on the severity of insomnia among insomnia patients needs to be interpreted cautiously.
{"title":"Does Viral Anxiety Influence the Insomnia Severity Among Patients With Insomnia Disorder During COVID-19 Pandemic?","authors":"Jana Sleiman, E. Cho, Dongin Lee, Inn-Kyu Cho, Seockhoon Chung, O. Uygur","doi":"10.17241/smr.2022.01480","DOIUrl":"https://doi.org/10.17241/smr.2022.01480","url":null,"abstract":"Background and Objective We aimed to investigate whether viral anxiety affects insomnia severity in patients with insomnia disorder during the coronavirus disease 2019 (COVID-19) pandemic. In addition, we examined whether viral anxiety mediates the influence of dysfunctional beliefs about sleep on insomnia severity.Methods The medical records of 111 patients who visit the sleep clinic from September 2021 to May 2022 were reviewed. Patients’ symptoms were rated with rating scales including Insomnia Severity Index (ISI), Stress and Anxiety to Viral Epidemics-6 items (SAVE-6), Dysfunctional Beliefs and Attitudes about Sleep-16 items (DBAS-16), Patient Health Questionnaire-9 items (PHQ-9), Epworth Sleepiness Scale, and discrepancy between desired time in bed and desired total sleep time (the DBST index).Results The SAVE-6 score was not significantly correlated with ISI score among insomnia patients. Linear regression analysis showed that the ISI score was expected by PHQ-9 (β = 0.21, p = 0.038) and DBAS-16 (β = 0.42, p < 0.001). Mediation analysis showed that viral anxiety did not mediate the influence of dysfunctional beliefs about sleep on insomnia severity.Conclusions We could not observe the mediating effect of viral anxiety on the association between dysfunctional beliefs about sleep on insomnia severity. Though COVID-somnia was one of big issues in this COVID-19 pandemic, the influence of virus on the severity of insomnia among insomnia patients needs to be interpreted cautiously.","PeriodicalId":37318,"journal":{"name":"Sleep Medicine Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48475864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Background and Objective Sleep is an important physiological process for humans. Students of tertiary institutions, especially those at the university, are often reported to have poor sleep quality due to changing social opportunities and increasing academic demands. This study aimed to investigate the prevalence of poor sleeping quality and its relationship with academic performance and psychological distress among university students in Malaysia.Methods An online questionnaire-based, cross-sectional study was conducted among students of tertiary institutions in Malaysia. The questionnaire consisted of respondents’ demographics, Pittsburgh Sleep Quality Index (PSQI), Epworth Sleepiness Scale (ESS), Horne-Ostberg Morningness-Eveningness Scale (MES) and Depression-Anxiety-Stress Scales (DASS-21). Simple and multiple linear regression were used to identify the relationship between the independent and dependent variables (PSQI score and MES score).Results Of the 403 respondents, about three-fourths were poor-quality sleepers. The cumulative grade point average (CGPA) was the only factor with a significant linear and positive relationship with the PSQI score. Only the depression and anxiety scores showed a significant linear and positive relationship between the PSQI score and the MES score.Conclusions Poor sleep quality was prevalent among university students. Poor sleep was associated with better academic performance. Students with depression or anxiety were significantly associated with poor sleep quality and being a morning bird.
{"title":"Factors Associated With Sleeping Quality and Behaviors Among University Students in Malaysia","authors":"S. C. Ong, Nizuwan Azman, Hui Ting Ho","doi":"10.17241/smr.2022.01536","DOIUrl":"https://doi.org/10.17241/smr.2022.01536","url":null,"abstract":"Background and Objective Sleep is an important physiological process for humans. Students of tertiary institutions, especially those at the university, are often reported to have poor sleep quality due to changing social opportunities and increasing academic demands. This study aimed to investigate the prevalence of poor sleeping quality and its relationship with academic performance and psychological distress among university students in Malaysia.Methods An online questionnaire-based, cross-sectional study was conducted among students of tertiary institutions in Malaysia. The questionnaire consisted of respondents’ demographics, Pittsburgh Sleep Quality Index (PSQI), Epworth Sleepiness Scale (ESS), Horne-Ostberg Morningness-Eveningness Scale (MES) and Depression-Anxiety-Stress Scales (DASS-21). Simple and multiple linear regression were used to identify the relationship between the independent and dependent variables (PSQI score and MES score).Results Of the 403 respondents, about three-fourths were poor-quality sleepers. The cumulative grade point average (CGPA) was the only factor with a significant linear and positive relationship with the PSQI score. Only the depression and anxiety scores showed a significant linear and positive relationship between the PSQI score and the MES score.Conclusions Poor sleep quality was prevalent among university students. Poor sleep was associated with better academic performance. Students with depression or anxiety were significantly associated with poor sleep quality and being a morning bird.","PeriodicalId":37318,"journal":{"name":"Sleep Medicine Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46683178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seung-Chul Hong, J. Song, Tae-Won Kim, Young-Chan Kim
Narcolepsy and idiopathic hypersomnia are central disorders of hypersomnolence accompanied by excessive daytime sleepiness, which are not caused by nocturnal sleep disturbance, sleep deficiency, or circadian rhythm sleep disorders. Several studies have questioned the repeatability of the Multiple Sleep Latency Test (MSLT) in type 2 narcolepsy (NT2) patients. After two or more repeated MSLTs, the diagnosis of type 1 narcolepsy (NT1) is maintained in more than 90% of cases, while only half of the NT2 patients retain their original diagnosis. The diagnosis of NT2 may shift to idiopathic hypersomnia based on the MSLT results, making the differential diagnosis of NT2 and idiopathic hypersomnia particularly challenging. Therefore, this study suggests the need for new tests in addition to the MSLT for diagnostic consistency in NT2 and idiopathic hypersomnia.
{"title":"Challenges in Diagnosing Narcolepsy and Idiopathic Hypersomnia","authors":"Seung-Chul Hong, J. Song, Tae-Won Kim, Young-Chan Kim","doi":"10.17241/smr.2023.01669","DOIUrl":"https://doi.org/10.17241/smr.2023.01669","url":null,"abstract":"Narcolepsy and idiopathic hypersomnia are central disorders of hypersomnolence accompanied by excessive daytime sleepiness, which are not caused by nocturnal sleep disturbance, sleep deficiency, or circadian rhythm sleep disorders. Several studies have questioned the repeatability of the Multiple Sleep Latency Test (MSLT) in type 2 narcolepsy (NT2) patients. After two or more repeated MSLTs, the diagnosis of type 1 narcolepsy (NT1) is maintained in more than 90% of cases, while only half of the NT2 patients retain their original diagnosis. The diagnosis of NT2 may shift to idiopathic hypersomnia based on the MSLT results, making the differential diagnosis of NT2 and idiopathic hypersomnia particularly challenging. Therefore, this study suggests the need for new tests in addition to the MSLT for diagnostic consistency in NT2 and idiopathic hypersomnia.","PeriodicalId":37318,"journal":{"name":"Sleep Medicine Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49074775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jihyung Lee, Y. Um, Jong-Hyun Jeong, H. Seo, Young-Chan Kim, Sung Hoon Yoon, S. Kim, Tae-Won Kim, Seung-Chul Hong
Background and Objective Research on the relationship between sleep duration and Patient Health Questionnaire-9 (PHQ-9), body mass index (BMI), and income in South Korea was scarce. This study aimed to investigate the relationship between sleep duration and the PHQ-9, BMI, and household income.Methods We used data from the Korean Community Health Survey (KCHS) conducted by the Korean Center for Disease Control and Prevention in 2018 which included a total of 228340 participants from across the country. We divided the participants into four groups based on their sleep duration and used one-way analysis of variance (ANOVA) to compare the mean values of PHQ-9, BMI, and household income among the groups.Results A total of 227899 respondents were included in the study. Based on a one-way ANOVA, the mean PHQ-9 score tended to increase as sleep duration decreased. However, the group with a sleep duration of 9 hours or more had an exceptionally higher mean PHQ-9 score than the group with a sleep duration of 7 to 9 hours. The BMI score generally decreased as the sleep duration increased. Additionally, the group with a sleep duration of 5 to 7 hours and 7 to 9 hours had higher household income than the group with a sleep duration of 5 hours or less or 9 hours or more.Conclusions This study demonstrated the association between sleep duration and PHQ-9, BMI, and household income. Sleep duration was found to be a factor influencing PHQ-9, BMI, and household income.
{"title":"Patient Health Questionnaire-9, Body Mass Index, Household Income According to Sleep Duration: Findings From a Community Health Survey","authors":"Jihyung Lee, Y. Um, Jong-Hyun Jeong, H. Seo, Young-Chan Kim, Sung Hoon Yoon, S. Kim, Tae-Won Kim, Seung-Chul Hong","doi":"10.17241/smr.2023.01662","DOIUrl":"https://doi.org/10.17241/smr.2023.01662","url":null,"abstract":"Background and Objective Research on the relationship between sleep duration and Patient Health Questionnaire-9 (PHQ-9), body mass index (BMI), and income in South Korea was scarce. This study aimed to investigate the relationship between sleep duration and the PHQ-9, BMI, and household income.Methods We used data from the Korean Community Health Survey (KCHS) conducted by the Korean Center for Disease Control and Prevention in 2018 which included a total of 228340 participants from across the country. We divided the participants into four groups based on their sleep duration and used one-way analysis of variance (ANOVA) to compare the mean values of PHQ-9, BMI, and household income among the groups.Results A total of 227899 respondents were included in the study. Based on a one-way ANOVA, the mean PHQ-9 score tended to increase as sleep duration decreased. However, the group with a sleep duration of 9 hours or more had an exceptionally higher mean PHQ-9 score than the group with a sleep duration of 7 to 9 hours. The BMI score generally decreased as the sleep duration increased. Additionally, the group with a sleep duration of 5 to 7 hours and 7 to 9 hours had higher household income than the group with a sleep duration of 5 hours or less or 9 hours or more.Conclusions This study demonstrated the association between sleep duration and PHQ-9, BMI, and household income. Sleep duration was found to be a factor influencing PHQ-9, BMI, and household income.","PeriodicalId":37318,"journal":{"name":"Sleep Medicine Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45915333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Seid, Emam Mohammed, Bilal Mohammed Aman, Hassen Yimer Hassen
Background and Objective Excessive daytime sleepiness (EDS) is an important public health issue requiring adequate screening and management to avoid such harmful consequences. The study aimed to assess the prevalence and risk factors of EDS in the perinatal period.Methods Institution-based cross-sectional study was carried out in selected public health institutions of Ethiopia on systematic selected 362 women during perinatal period. We used a validated Epworth daytime sleepiness tool to collect data. Epi-InfoTM 7 and SPSS version 26 were used for data entry and analysis, respectively. Bivariable and multivariable binary logistic regression analyses were conducted to determine the associated factors.Results The prevalence of EDS was 16.6% (95% CI: 12.6–20.7). Excessive pregnancy-related concern (adjusted odds ratio [AOR] = 0.232, 95% CI: 0.087–0.621), having depression symptoms (AOR = 8.045, 95% CI: 3.375–19.174), anxiety symptoms (AOR = 4.905, 95% CI: 2.083– 11.550) and having a chronic medical illness (AOR = 5.441, 95% CI: 2.273–13.021) were the factors associated with EDS.Conclusions The results of the current study suggested that perinatal EDS among women in northern part of Ethiopia is a highly prevalent and associated with excessive pregnancy concern, depression, anxiety, and medical illness.
{"title":"Excessive Daytime Sleepiness and Associated Factors Among Women in Perinatal Period","authors":"J. Seid, Emam Mohammed, Bilal Mohammed Aman, Hassen Yimer Hassen","doi":"10.17241/smr.2022.01431","DOIUrl":"https://doi.org/10.17241/smr.2022.01431","url":null,"abstract":"Background and Objective Excessive daytime sleepiness (EDS) is an important public health issue requiring adequate screening and management to avoid such harmful consequences. The study aimed to assess the prevalence and risk factors of EDS in the perinatal period.Methods Institution-based cross-sectional study was carried out in selected public health institutions of Ethiopia on systematic selected 362 women during perinatal period. We used a validated Epworth daytime sleepiness tool to collect data. Epi-InfoTM 7 and SPSS version 26 were used for data entry and analysis, respectively. Bivariable and multivariable binary logistic regression analyses were conducted to determine the associated factors.Results The prevalence of EDS was 16.6% (95% CI: 12.6–20.7). Excessive pregnancy-related concern (adjusted odds ratio [AOR] = 0.232, 95% CI: 0.087–0.621), having depression symptoms (AOR = 8.045, 95% CI: 3.375–19.174), anxiety symptoms (AOR = 4.905, 95% CI: 2.083– 11.550) and having a chronic medical illness (AOR = 5.441, 95% CI: 2.273–13.021) were the factors associated with EDS.Conclusions The results of the current study suggested that perinatal EDS among women in northern part of Ethiopia is a highly prevalent and associated with excessive pregnancy concern, depression, anxiety, and medical illness.","PeriodicalId":37318,"journal":{"name":"Sleep Medicine Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43483501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ahmad Sharifnezhad, Maryam Garmabi, F. Naderi, Fateme Darrudi, Zahra Andishmand, A. Gholami
Background and Objective Sleep duration and quality are important factors for health-related quality of life (HRQoL). This study aimed at investigating the association of sleep duration and quality with HRQoL in fresher students of Neyshabur University of Medical Sciences. Methods The study included 471 fresher students. The sleep duration and sleep quality were measured with the Persian version of Pittsburgh Sleep Quality Index (PSQI) and the HRQoL was evaluated with the Persian version of the 12-Item Short Form Survey (SF-12). The data were collected from late September to early October in 2019 and 2020. The multiple linear regression model was used to determine the independent association of sleep duration and quality with HRQoL. A p-value ≤ 0.05 was considered statistically significant.
{"title":"Association of Sleep Duration and Quality With Health-Related Quality of Life in Fresher University Students","authors":"Ahmad Sharifnezhad, Maryam Garmabi, F. Naderi, Fateme Darrudi, Zahra Andishmand, A. Gholami","doi":"10.17241/smr.2022.01389","DOIUrl":"https://doi.org/10.17241/smr.2022.01389","url":null,"abstract":"Background and Objective Sleep duration and quality are important factors for health-related quality of life (HRQoL). This study aimed at investigating the association of sleep duration and quality with HRQoL in fresher students of Neyshabur University of Medical Sciences. Methods The study included 471 fresher students. The sleep duration and sleep quality were measured with the Persian version of Pittsburgh Sleep Quality Index (PSQI) and the HRQoL was evaluated with the Persian version of the 12-Item Short Form Survey (SF-12). The data were collected from late September to early October in 2019 and 2020. The multiple linear regression model was used to determine the independent association of sleep duration and quality with HRQoL. A p-value ≤ 0.05 was considered statistically significant.","PeriodicalId":37318,"journal":{"name":"Sleep Medicine Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46404099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cheyne-Stokes Breathing With an Obstructive Airway During Rapid Eye Movement Sleep","authors":"K. Ji","doi":"10.17241/smr.2023.01606","DOIUrl":"https://doi.org/10.17241/smr.2023.01606","url":null,"abstract":"","PeriodicalId":37318,"journal":{"name":"Sleep Medicine Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46147144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Sleep Effort and Insomnia Severity: The Role of Bedtime Procrastination","authors":"O. Uygur, A. Bahar","doi":"10.17241/smr.2023.01655","DOIUrl":"https://doi.org/10.17241/smr.2023.01655","url":null,"abstract":"","PeriodicalId":37318,"journal":{"name":"Sleep Medicine Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47348257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kyumin Kim, Seockhoon Chung, E. Cho, J. Choi, Dongin Lee, Inn-Kyu Cho
Background and Objective It is important to consider dysfunctional beliefs about sleep when conducting cognitive-behavioral therapy for insomnia. The purpose of this study was to examine the reliability and validity of a Dysfunctional Beliefs about Sleep-2 items (DBS-2) scale in a general population and clinical sample.Methods Our study examined the reliability and validity of the DBS-2 scale in the general population (group I, n = 374) and in a clinical sample of subjects with insomnia disorders (group II, n = 105). An online survey targeting the general population was conducted over the course of January 10–18, 2022, and a retrospective study of medical records was conducted among a clinical sample of insomnia patients who visited the Asan Medical Center Sleep Clinic for the first time between September of 2021 and May of 2022. The internal consistency reliability of the DBS-2 scale was measured using split-half coefficients, and factor analysis was used to determine its validity. Using the Insomnia Severity Index (ISI) and the Dysfunctional Beliefs and Attitudes about Sleep-16 items (DBAS-16), convergence validity was explored.Results Split-half coefficients for the DBS-2 were 0.862 and 0.855 in the general population and a clinical sample of insomnia disorder. DBS-2 overall report score was significantly correlated with ISI (r = 0.26, p < 0.001) and DBAS-16 (r = 0.43, p < 0.001) in the general population, and correlated with ISI (r = 0.45, p < 0.001) and DBAS-16 (r = 0.50, p < 0.001) in the clinical sample. Both groups of subjects had an optimal cut-off score of 13 for the DBS-2 scale.Conclusions We found that the DBS-2 scale, a two-item ultra-brief rating scale, could accurately measure dysfunctional beliefs about sleep in the general population and a clinical sample of insomnia patients.
背景与目的在进行失眠症认知行为治疗时，考虑对睡眠的功能失调信念是很重要的。本研究的目的是检验睡眠功能障碍信念量表(DBS-2)在普通人群和临床样本中的信度和效度。方法本研究检验了DBS-2量表在一般人群(I组，n = 374)和失眠患者临床样本(II组，n = 105)中的信度和效度。在2022年1月10日至18日期间进行了以普通大众为对象的网上调查，并对2021年9月至2022年5月期间首次来到峨山医院睡眠诊疗所的失眠患者的临床样本进行了病历回顾性分析。DBS-2量表内部一致性信度采用分半系数测量，效度采用因子分析确定。采用失眠症严重程度指数(ISI)和关于睡眠-16项的功能失调信念和态度(DBAS-16)，探讨收敛效度。结果DBS-2在普通人群和失眠临床样本中的分半系数分别为0.862和0.855。DBS-2总体报告评分与一般人群ISI (r = 0.26, p < 0.001)和DBAS-16 (r = 0.43, p < 0.001)显著相关，与临床样本ISI (r = 0.45, p < 0.001)和DBAS-16 (r = 0.50, p < 0.001)显著相关。两组受试者的DBS-2量表最佳分值为13分。结论DBS-2量表是一种包含两个项目的超简短评定量表，可以准确地衡量普通人群和失眠患者的睡眠功能失调信念。
{"title":"Reliability and Validity of Dysfunctional Beliefs About Sleep-2 (DBS-2), an Ultra-brief Rating Scale for Assessing Dysfunctional Thoughts About Sleep","authors":"Kyumin Kim, Seockhoon Chung, E. Cho, J. Choi, Dongin Lee, Inn-Kyu Cho","doi":"10.17241/smr.2022.01403","DOIUrl":"https://doi.org/10.17241/smr.2022.01403","url":null,"abstract":"Background and Objective It is important to consider dysfunctional beliefs about sleep when conducting cognitive-behavioral therapy for insomnia. The purpose of this study was to examine the reliability and validity of a Dysfunctional Beliefs about Sleep-2 items (DBS-2) scale in a general population and clinical sample.Methods Our study examined the reliability and validity of the DBS-2 scale in the general population (group I, n = 374) and in a clinical sample of subjects with insomnia disorders (group II, n = 105). An online survey targeting the general population was conducted over the course of January 10–18, 2022, and a retrospective study of medical records was conducted among a clinical sample of insomnia patients who visited the Asan Medical Center Sleep Clinic for the first time between September of 2021 and May of 2022. The internal consistency reliability of the DBS-2 scale was measured using split-half coefficients, and factor analysis was used to determine its validity. Using the Insomnia Severity Index (ISI) and the Dysfunctional Beliefs and Attitudes about Sleep-16 items (DBAS-16), convergence validity was explored.Results Split-half coefficients for the DBS-2 were 0.862 and 0.855 in the general population and a clinical sample of insomnia disorder. DBS-2 overall report score was significantly correlated with ISI (r = 0.26, p < 0.001) and DBAS-16 (r = 0.43, p < 0.001) in the general population, and correlated with ISI (r = 0.45, p < 0.001) and DBAS-16 (r = 0.50, p < 0.001) in the clinical sample. Both groups of subjects had an optimal cut-off score of 13 for the DBS-2 scale.Conclusions We found that the DBS-2 scale, a two-item ultra-brief rating scale, could accurately measure dysfunctional beliefs about sleep in the general population and a clinical sample of insomnia patients.","PeriodicalId":37318,"journal":{"name":"Sleep Medicine Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42216784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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