title: Prevalence and Determinants of Chronic Post-Traumatic Stress Disorder After Floods.
abstract: OBJECTIVE
  To explore the prevalence and determinants of chronic post-traumatic stress disorder (PTSD) among flood victims.
  
  
  METHODS
  A cross-sectional survey was carried out in 2014 among individuals who had experienced the 1998 floods and had been diagnosed with PTSD in 1999 in Hunan, China. Cluster sampling was used to select subjects from the areas that had been surveyed in 1999. PTSD was diagnosed according to DSM-IV criteria, social support was measured according to a Social Support Rating Scale, coping style was measured according to a Simplified Coping Style Questionnaire, and personality was measured by use of the revised Eysenck Personality Questionnaire Short Scale for Chinese. Data were collected through face-to-face interviews by use of a structured questionnaire. Multivariate logistic regression analysis was used to reveal the determinants of chronic PTSD.
  
  
  RESULTS
  A total of 123 subjects were interviewed, 17 of whom (14.4%) were diagnosed with chronic PTSD. Chronic PTSD was significantly associated with disaster stressors (odds ratio [OR]: 1.74; 95% confidence interval [CI]: 1.22-2.47), nervousness (OR: 1.09; 95% CI: 1.01-1.17), and social support (OR: 0.85; 95 CI%: 0.74-0.98).
  
  
  CONCLUSIONS
  Chronic PTSD in flood victims is significantly associated with disaster stressors, nervousness, and social support. These factors may play important roles in identifying persons at high risk of chronic PTSD.
authors.affiliation: 1School of Public Health,Central South University,Changsha,Hunan,PR China.
authors.forename: Long
authors.initials: L
authors.lastname: Chen
authors.affiliation: 1School of Public Health,Central South University,Changsha,Hunan,PR China.
authors.forename: Hongzhuan
authors.initials: H
authors.lastname: Tan
authors.affiliation: 1School of Public Health,Central South University,Changsha,Hunan,PR China.
authors.forename: Reuben
authors.initials: R
authors.lastname: Cofie
authors.affiliation: 1School of Public Health,Central South University,Changsha,Hunan,PR China.
authors.forename: Shimin
authors.initials: S
authors.lastname: Hu
authors.affiliation: 1School of Public Health,Central South University,Changsha,Hunan,PR China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
authors.affiliation: 1School of Public Health,Central South University,Changsha,Hunan,PR China.
authors.forename: Jia
authors.initials: J
authors.lastname: Zhou
authors.affiliation: 1School of Public Health,Central South University,Changsha,Hunan,PR China.
authors.forename: Tubao
authors.initials: T
authors.lastname: Yang
authors.affiliation: 1School of Public Health,Central South University,Changsha,Hunan,PR China.
authors.forename: Xuemin
authors.initials: X
authors.lastname: Tang
authors.affiliation: 2Center for Disease Control and Prevention (CDC) of Yiyang City,Hunan,PR China.
authors.forename: Guanghui
authors.initials: G
authors.lastname: Cui
authors.affiliation: 1School of Public Health,Central South University,Changsha,Hunan,PR China.
authors.forename: Aizhong
authors.initials: A
authors.lastname: Liu
mesh_terms: D000223:Adaptation, Psychological; D000293:Adolescent; D000328:Adult; D000368:Aged; D002908:Chronic Disease / Q000453:epidemiology* / Q000401:mortality; D003430:Cross-Sectional Studies; D015981:Epidemiologic Factors; D005260:Female; D055868:Floods / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D012307:Risk Factors; D013313:Stress Disorders, Post-Traumatic / Q000453:epidemiology* / Q000209:etiology / Q000401:mortality; D013315:Stress, Psychological; D011795:Surveys and Questionnaires
keywords: floods; mental disorders; post-traumatic; stress disorders