title: [A multi-team case-control study on the effects of psychosocial stress to overall health].
abstract: OBJECTIVE
  To explore the quantitative relationship between the intensity of psychosocial stress and the degree of overall health damages.
  
  
  METHODS
  A multi-group case-control study was designed and implemented. The cases included two groups of out-patients (177) and in-patients (214) in a hospital in Jianyang city, and controls (587) were from the follow-up cohort in the same city. Three groups were studied on the following contents: general demographic characteristics, psychosocial factors and the degree of health damages including mental, physical, and social status. Major statistical analyses were as follows: ranks test, ANOVA, cluster analysis, multinomial logistic regression and ordered-logit regression.
  
  
  RESULTS
  Ordered-logit regression model showed that the odds ratio of negative life-events on degree of health damages was 1.335 (P < 0.01). This result showed that there was a positive dose-effect relationship between the negative life-events score and overall health damages. The utility of social support to overall health had protective effect (OR = 0.513).
  
  
  CONCLUSIONS
  Negative life-events were the major risk factors to overall health, and there was a dose-effect relationship between negative events and health damages. Function of social support played a protective factor for health.
authors.affiliation: Department of Epidemiology, West China School of Public Health, Sichuan University, Chengdu 610041, China.
authors.forename: Jiayuan
authors.initials: J
authors.lastname: Li
authors.forename: Rongsheng
authors.initials: R
authors.lastname: Luan
authors.forename: Chaorun
authors.initials: C
authors.lastname: Xue
authors.forename: You
authors.initials: Y
authors.lastname: Zhang
authors.forename: Jiayan
authors.initials: J
authors.lastname: Gao
authors.forename: Dingyu
authors.initials: D
authors.lastname: Yang
authors.forename: Xiaohui
authors.initials: X
authors.lastname: Luo
authors.forename: Li
authors.initials: L
authors.lastname: Deng
authors.forename: Donglei
authors.initials: D
authors.lastname: Liu
mesh_terms: D000704:Analysis of Variance; D016022:Case-Control Studies; D015331:Cohort Studies; D004522:Educational Status; D006304:Health Status; D006801:Humans; D017533:Marital Status; D012923:Social Class; D013315:Stress, Psychological / Q000523:psychology*