OBJECTIVES: Firefighters are prone to suffer from psychological trauma and post-traumatic stress disorder (PTSD) in the workplace, and have a poor prognosis after PTSD. Reliable models for predicting PTSD allow for effective identification and intervention for patients with early PTSD. By collecting the psychological traits, psychological states and work situations of firefighters, this study aims to develop a machine learning algorithm with the aim of effectively and accurately identifying the onset of PTSD in firefighters, as well as detecting some important predictors of PTSD onset. METHODS: This study conducted a cross-sectional survey through convenient sampling of firefighters from 20 fire brigades in Changsha, which were evenly distributed across 6 districts and Changsha County, with a total of 628 firefighters. We used the synthetic minority oversampling technique (SMOTE) to process data sets and used grid search to finish the parameter tuning. The predictive capability of several commonly used machine learning models was compared by 5-fold cross-validation and using the area under the receiver operating characteristic curve (ROC-AUC), accuracy, precision, recall, and F1 score. RESULTS: The random forest model achieved good performance in predicting PTSD with an average AUC score at 0.790. The mean accuracy of the model was 90.1%, with an F1 score of 0.945. The three most important predictors were perseverance, forced thinking, and reflective deep thinking, with weights of 0.165, 0.158, and 0.152, respectively. The next most important predictors were employment time, psychological power, and optimism. CONCLUSIONS PTSD onset prediction model for Changsha firefighters constructed by random forest has strong predictive ability, and both psychological characteristics and work situation can be used as predictors of PTSD onset risk for firefighters. In the next step of the study, validation using other large datasets is needed to ensure that the predictive models can be used in clinical setting.
Humans ; Stress Disorders, Post-Traumatic/diagnosis* ; Firefighters/psychology* ; Cross-Sectional Studies ; Algorithms ; Machine Learning

PURPOSE: As COVID-19 spreads globally and affects people's health, there are concerns that the pandemic and control policies may have psychological effects on young people (age from 17 to 35 years). This psychological impact might vary in different countries, and thus we compared the prevalence of self-reported psychological distress, loneliness and posttraumatic stress symptoms (PTSS) among young people in the United Kingdom (UK) and China at the beginning of the COVID-19 pandemic. METHODS: Data of this study came from two sources. One source was the first wave of COVID-19 study in Understanding Society, a special wave of the UK household longitudinal study, which provided the high-quality, national-wide representative panel data. The sample comprised 1054 young people. The other source was an online survey on the mental health of 1003 young people from Shanghai, a highly developed area in China. The questionnaire included questions on the prevalence of common mental disorders (cut-off score ≥ 4), loneliness and potential PTSS (cut-off ≥ 33). Univariable analyses were conducted to test the differences in the self-reported prevalence of psychological distress and loneliness between the two groups. Multivariable logistic regression analyses were run to explore the predictors of psychological distress and loneliness among all the young people from England and Shanghai. RESULTS: Among the samples with self-reported psychological distress, the UK sample accounted for 34.4% (n=1054) and the Chinese sample accounted for 14.1% (n=1003). The difference between the two groups was statistically significant (p < 0.001). Additionally, 57.1% of people in the UK and 46.7% in China reported that they sometimes or often felt lonely, of which the difference is statistically significant (p < 0.001). Regression analysis of the entire samples showed that nationality, gender, psychotherapy and loneliness were significant predictors of 12-item General Health Questionnaire scores, while the variables of age and living alone were not. Significant predictors of self-reported loneliness were the nationality, gender, age, living alone and psychotherapy. In China, 123 (12.3%) young people, 49 men (11.3%) and 74 women (13.0%), met the criteria of PTSS symptoms (cut-off scores ≥ 33). These scores were only collected in China. CONCLUSION This evidence suggests that mental health and loneliness reported by young people were lower in China than that in the UK during the studied period. More research is needed to understand these differences. If the differential negative psychological impacts are confirmed, country-specific measures of prevention and intervention should be adopted to improve the mental health of young people under the ongoing impact of the pandemic.
Adult ; COVID-19/epidemiology* ; China/epidemiology* ; Female ; Humans ; Loneliness/psychology* ; Male ; Mental Health ; Prevalence ; Psychological Distress ; SARS-CoV-2 ; Stress Disorders, Post-Traumatic/epidemiology* ; United Kingdom/epidemiology* ; Young Adult

PURPOSE: One of the consequences of trauma-related injuries is disability. There are more than one billion people with disabilities worldwide. Disability in people reduces their quality of life. The goal of this study was to determine the rate of post-trauma stress and disability related to trauma in the population over 15 years old in Kashan during a solar year of 2018-2019. METHODS: This is a cross-sectional population-based study. A cluster sampling method was used in the city of Kashan, and 3880 persons were interviewed with individuals randomly selected in each household. If a person had trauma during one year ago, the World Health Organization Disability Assessment Schedule 2.0 and Post Trauma Stress Disorder (PTSD) Checklist were applied for further interview. Data were analyzed using Chi-square test or t-test. RESULTS: Among the 3880 participants residing in Kashan, 274 (7.1%) reported a history of traumatic injury during one year ago in 2018-2019. Incidence of all injuries was estimated to be 70.61 (62.60-78.70) per 1000 people. For the trauma population, 213 (77.7%) were male and 75.1% were married. About half of them (50.3%, 138/274) aged 21-39 years. The most common cause of injuries was related to traffic accidents: 140 (51.1%). Of the 274 trauma participants, 47 (17.2%) reported PTSD; 244 (89.1%) had a mild disability, and 30 (10.9%) reported moderate disability. CONCLUSION One of the main causes of disability in the human community is the traumatic injuries. According to the results of this study, 89.1% of trauma participants have sustained at last mild disability following trauma. These people require follow-up and post-treatment support. It should be noted that psychological complications such as PTSD are as significant as physical symptoms.
Accidents, Traffic ; Adult ; Age Factors ; Cross-Sectional Studies ; Disability Evaluation ; Disabled Persons/statistics & numerical data* ; Female ; Humans ; Iran/epidemiology* ; Male ; Stress Disorders, Post-Traumatic/psychology* ; Time Factors ; Young Adult

Objective To explore the relationship among post-traumatic stress disorder(PTSD),social support and quality of life in patients with spinal cord injury(SCI)after a long recovery in China and investigate the factors influencing the quality of life. Methods In this cross-sectional study,206 SCI patients who were hospitalized in 9 hospitals were enrolled.Data collection was performed using general information,the Post-Traumatic Stress Disorder Checklist-Civilian version,the social support scales,and the World Health Organization Quality of Life-Abbreviated version.The data were statistically analyzed using
China/epidemiology* ; Cross-Sectional Studies ; Humans ; Quality of Life ; Social Support ; Spinal Cord Injuries/psychology* ; Stress Disorders, Post-Traumatic/epidemiology*

INTRODUCTIONAnxiety sensitivity has been proposed as a psychological vulnerability factor for post-traumatic stress disorder (PTSD). Studies have also supported the protective role of resilience for overcoming the negative effects of trauma exposure. Given the linkages between anxiety sensitivity, resilience, trauma exposure and post-traumatic stress, this study explored the potential moderating roles of anxiety sensitivity and resilience on the association between trauma history and PTSD symptoms in a sample of individuals with chronic pain.

MATERIALS AND METHODSA total of 100 patients with chronic pain were recruited from a large public hospital. Patients who had pain lasting for more than 3 months and a pain intensity rating of at least 4/10 were included. The study participants were administered measures of PTSD symptoms (PTSD Checklist - Civilian Version), resilience (Brief Resilient Coping Scale) and anxiety sensitivity (Anxiety Sensitivity Index).

RESULTSAn analysis of outcome measures indicated that anxiety sensitivity and resilience were independently associated with PTSD symptoms, where βs were 0.57 and -0.23, respectively. The relationship between trauma and PTSD symptom severity was also moderated by anxiety sensitivity. Trauma history was associated with higher PTSD symptom severity only in those with high anxiety sensitivity. However, contrary to the hypotheses, resilience did not serve as a moderator.

CONCLUSIONThere are potential benefits of PTSD interventions that increase resilience and decrease anxiety sensitivity in individuals with chronic pain, especially for those who have experienced a traumatic event. Given that the presence of PTSD symptomatology in chronic pain populations negatively impact patient well-being, it would be important for clinicians to assess, monitor and treat PTSD in individuals with chronic pain.

Anxiety ; epidemiology ; psychology ; Chronic Pain ; epidemiology ; psychology ; Humans ; Psychological Trauma ; epidemiology ; psychology ; Resilience, Psychological ; Risk Factors ; Severity of Illness Index ; Singapore ; epidemiology ; Stress Disorders, Post-Traumatic ; epidemiology ; psychology

PURPOSE: The Perinatal Post-Traumatic Stress Disorder Questionnaire (PPQ) was designed to measure post-traumatic symptoms related to childbirth and symptoms during postnatal period. The purpose of this study was to develop a translated Korean version of the PPQ and to evaluate reliability and validity of the Korean PPQ. METHODS: Participants were 196 mothers at one to 18 months after giving childbirth and data were collected through e-mails. The PPQ was translated into Korean using translation guideline from World Health Organization. For this study Cronbach's alpha and split-half reliability were used to evaluate the reliability of the PPQ. Exploratory Factor Analysis (EFA), Confirmatory Factor Analysis (CFA), and known-group validity were conducted to examine construct validity. Correlations of the PPQ with Impact of Event Scale (IES), Beck Depression Inventory II (BDI-II), and Beck Anxiety Inventory (BAI) were used to test a criterion validity of the PPQ. RESULTS: Cronbach's alpha and Spearman-Brown split-half correlation coefficient were 0.91 and 0.77, respectively. EFA identified a 3-factor solution including arousal, avoidance, and intrusion factors and CFA revealed the strongest support for the 3-factor model. The correlations of the PPQ with IES, BDI-II, and BAI were .99, .60, and .72, respectively, pointing to criterion validity of a high level. CONCLUSION: The Korean version PPQ is a useful tool for screening and assessing mothers' experiencing emotional distress related to child birth and during the postnatal period. The PPQ also reflects Post Traumatic Stress Disorder's diagnostic standards well.
Adult ; Anxiety ; Asian Continental Ancestry Group ; Depression/pathology ; Electronic Mail ; Factor Analysis, Statistical ; Female ; Humans ; Internet ; Mothers/psychology ; Parturition ; Pregnancy ; Pregnancy Complications ; *Psychiatric Status Rating Scales ; Republic of Korea ; Stress Disorders, Post-Traumatic/*psychology ; Surveys and Questionnaires ; *Translating

Adaptation, Psychological ; Adult ; Anxiety ; epidemiology ; psychology ; Depression ; epidemiology ; psychology ; Female ; Humans ; Intensive Care Units ; Male ; Middle Aged ; Nurses ; psychology ; statistics & numerical data ; Physicians ; psychology ; statistics & numerical data ; Prevalence ; Singapore ; epidemiology ; Stress Disorders, Post-Traumatic ; epidemiology ; psychology ; Young Adult

BACKGROUND: This study was conducted to check whether self-resilience, one of the characteristics known to affect the occurrence of post-traumatic stress disorder (PTSD) symptoms after experiencing traumatic events, could serve as a protective factor for police officers whose occupational factors are corrected. METHODS: We conducted a cross-sectional study in which 112 male police officers in Gangwon Province participated. They visited the Wonju Severance Christian Hospital Occupational Environment Center for medical check-ups from June to December 2015. Their general characteristics were identified using structured questionnaires, and they were asked to fill in the Korean Occupational Stress Scale-Short Form (KOSS-SF). Further, the Center for Epidemiologic Studies-Depression Scale (CES-D), Connor–Davidson Resilience Scale-Korean (CD-RI-K), and Impact of Event Scale-Revised-Korean version (IES-R-K) were used to evaluate their job stress, depression, self-resilience, and PTSD symptoms. Logistic regression analysis was conducted to correct their personal, occupational, and psychological factors to analyze the relationship between self-resilience and PTSD symptoms. RESULTS: Among 112 respondents who experienced a traumatic event, those with low self-resilience had significantly higher rate of PTSD symptoms than those with high self-resilience even after correcting for the covariate of general, occupational, and psychological characteristics (odds ratio [OR] 3.51; 95 % CI: 1.06–19.23). CONCLUSIONS: Despite several limitations, these results suggest that a high degree of self-resilience may protect police officers from critical incident-related PTSD symptoms.
Cross-Sectional Studies ; Depression ; Gangwon-do ; Humans ; Logistic Models ; Male ; Police* ; Protective Factors* ; Psychology ; Stress Disorders, Post-Traumatic* ; Surveys and Questionnaires

No abstract available.
Humans ; Republic of Korea ; Stress Disorders, Post-Traumatic/*diagnosis/*psychology/therapy

OBJECTIVETo investigate the occurrence and associated factors for posttraumatic stress disorder (PTSD) in rescuers and firefighters.

METHODSThe PTSD of 264 rescuers and firefighters who had participated in rescue was evaluated using the self-designed fireman general situation questionnaire and PTSD Checklist-Civilian Version (PCL-C). The factors associated with the occurrence of PTSD were also analyzed.

RESULTSThe incidence rate of PTSD in the subjects was 8.3%. The PTSD rate of special service corps (12%) was significantly higher than that of other subjects (P<0.05). The incidence of PTSD was highest in the rescuers and firefighters above the third rank, but without significant differences (P>0.05). The PTSD rate of married rescuers and firefighters was significantly higher than that of unmarried subjects (P<0.05). The PTSD rate of subjects addicted to drinking was significantly higher than that of non-drinking subjects (P<0.05). Subjects with more frequent attendance were more susceptible to PTSD compared with those with less attendance.

CONCLUSIONThe incidence rate of PTSD is high in rescuers and firefighters who have attended rescues. It is necessary to implement both short-term and long-term counseling programs for stress management and intervention in order to reduce the psychological trauma after rescue and improve the mental health of rescuers and firefighters.

Firefighters ; psychology ; Humans ; Incidence ; Stress Disorders, Post-Traumatic ; diagnosis ; Surveys and Questionnaires