{"title":"消防员的创伤负荷和认知失败:创伤后应激障碍和个人及工作特征的作用","authors":"Mitra Sadeghi Jozani , Fakhradin Ghasemi , Mohammad Babamiri , Omid Kalatpour","doi":"10.1016/j.ergon.2023.103484","DOIUrl":null,"url":null,"abstract":"<div><h3>Introduction</h3><p>Firefighters<span><span> repeatedly encounter traumatic and stressful events while on duty, leading to mental disorders such as post-traumatic stress disorder symptoms (PTSS). This disorder can affect the rate of cognitive failures (CFs) and thus increase the probability of human error, unsafe behaviors, and accidents. The present study was conducted to investigate the direct and indirect effects of trauma load on the rate of CFs in firefighters and to investigate the mediation effect of PTSS and the moderation effect of resilience, neuroticism, and </span>job characteristics.</span></p></div><div><h3>Methods</h3><p>The study was performed by cross-sectional design in 2020 on all operational firefighters from Hamadan, Iran. A total number of 240 firefighters made up the sample size of our study. Data were collected using validated questionnaires during nine months. Hypothesis testing and data analysis were performed using structural equation modeling<span> (by Amos software version 24) and hierarchical regression (by the 23rd version of SPSS software).</span></p></div><div><h3>Results</h3><p>PTSS fully mediated the relationship between trauma load and CFs. Trauma load, resilience, and neuroticism were significant predictors of PTSS (<em>p<0.05</em>). Resilience and neuroticism had no moderation effect on the relationship between trauma load and PTSS (<em>p>0.05</em>). PTSS showed a direct relationship with CFs (<em>p<0.001</em>). Among job characteristics, only job control moderated the relationship between PTSS and CFs (<em>p<0.05</em>).</p></div><div><h3>Conclusion</h3><p>trauma load can increase the rate of CFs by causing PTSS in firefighters. High job control at work can weaken the relationship between PTSS and CFs.</p></div>","PeriodicalId":50317,"journal":{"name":"International Journal of Industrial Ergonomics","volume":null,"pages":null},"PeriodicalIF":2.5000,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Trauma load and cognitive failures among firefighters: The role of post-traumatic stress disorder and personal and job characteristics\",\"authors\":\"Mitra Sadeghi Jozani , Fakhradin Ghasemi , Mohammad Babamiri , Omid Kalatpour\",\"doi\":\"10.1016/j.ergon.2023.103484\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Introduction</h3><p>Firefighters<span><span> repeatedly encounter traumatic and stressful events while on duty, leading to mental disorders such as post-traumatic stress disorder symptoms (PTSS). This disorder can affect the rate of cognitive failures (CFs) and thus increase the probability of human error, unsafe behaviors, and accidents. The present study was conducted to investigate the direct and indirect effects of trauma load on the rate of CFs in firefighters and to investigate the mediation effect of PTSS and the moderation effect of resilience, neuroticism, and </span>job characteristics.</span></p></div><div><h3>Methods</h3><p>The study was performed by cross-sectional design in 2020 on all operational firefighters from Hamadan, Iran. A total number of 240 firefighters made up the sample size of our study. Data were collected using validated questionnaires during nine months. Hypothesis testing and data analysis were performed using structural equation modeling<span> (by Amos software version 24) and hierarchical regression (by the 23rd version of SPSS software).</span></p></div><div><h3>Results</h3><p>PTSS fully mediated the relationship between trauma load and CFs. Trauma load, resilience, and neuroticism were significant predictors of PTSS (<em>p<0.05</em>). Resilience and neuroticism had no moderation effect on the relationship between trauma load and PTSS (<em>p>0.05</em>). PTSS showed a direct relationship with CFs (<em>p<0.001</em>). Among job characteristics, only job control moderated the relationship between PTSS and CFs (<em>p<0.05</em>).</p></div><div><h3>Conclusion</h3><p>trauma load can increase the rate of CFs by causing PTSS in firefighters. High job control at work can weaken the relationship between PTSS and CFs.</p></div>\",\"PeriodicalId\":50317,\"journal\":{\"name\":\"International Journal of Industrial Ergonomics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.5000,\"publicationDate\":\"2023-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Industrial Ergonomics\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0169814123000768\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, INDUSTRIAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Industrial Ergonomics","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0169814123000768","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, INDUSTRIAL","Score":null,"Total":0}
Trauma load and cognitive failures among firefighters: The role of post-traumatic stress disorder and personal and job characteristics
Introduction
Firefighters repeatedly encounter traumatic and stressful events while on duty, leading to mental disorders such as post-traumatic stress disorder symptoms (PTSS). This disorder can affect the rate of cognitive failures (CFs) and thus increase the probability of human error, unsafe behaviors, and accidents. The present study was conducted to investigate the direct and indirect effects of trauma load on the rate of CFs in firefighters and to investigate the mediation effect of PTSS and the moderation effect of resilience, neuroticism, and job characteristics.
Methods
The study was performed by cross-sectional design in 2020 on all operational firefighters from Hamadan, Iran. A total number of 240 firefighters made up the sample size of our study. Data were collected using validated questionnaires during nine months. Hypothesis testing and data analysis were performed using structural equation modeling (by Amos software version 24) and hierarchical regression (by the 23rd version of SPSS software).
Results
PTSS fully mediated the relationship between trauma load and CFs. Trauma load, resilience, and neuroticism were significant predictors of PTSS (p<0.05). Resilience and neuroticism had no moderation effect on the relationship between trauma load and PTSS (p>0.05). PTSS showed a direct relationship with CFs (p<0.001). Among job characteristics, only job control moderated the relationship between PTSS and CFs (p<0.05).
Conclusion
trauma load can increase the rate of CFs by causing PTSS in firefighters. High job control at work can weaken the relationship between PTSS and CFs.
期刊介绍：
The journal publishes original contributions that add to our understanding of the role of humans in today systems and the interactions thereof with various system components. The journal typically covers the following areas: industrial and occupational ergonomics, design of systems, tools and equipment, human performance measurement and modeling, human productivity, humans in technologically complex systems, and safety. The focus of the articles includes basic theoretical advances, applications, case studies, new methodologies and procedures; and empirical studies.
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