Résumé :
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[BDSP. Notice produite par INIST-CNRS F7JtR0x8. Diffusion soumise à autorisation]. Objective : To analyse in the general population the prevalence and predictors of symptomatology consistent with post-traumatic stress disorder (S-PTSD) 18 months after an industrial explosion. Design : Cross-sectional survey. Participants and outcome measures : A random sample of 1191 city inhabitants, including an oversample of the immediate area (<3 km). S-PTSD was measured by the self-administered Impact of Event Scale-Revised. The relation between S-PTSD and individual vulnerability factors, immediate exposure and post-trauma factors was analysed by gender. Results : S-PTSD was more prevalent in the immediate area than in the peripheral area (women 19% vs 8% ; men 8% vs 2%, p<0.01). In the immediate area, S-PTSD was independently associated with birth outside France (men : ORa=13.9,95% Cl 3.7 to 52.8 ; women : ORa=2.1,95% Cl 1.0 to 4.2), age more than 40 years (men : ORa=4.3,95% Cl 1.01 to 18.2 ; women : ORa=2.3,95% Cl 1.1 to 4.5), previous psychotropic treatment (men : ORa=11.5,95% Cl 2.4 to 53.6), proximity to the explosion (less educated men only) (ORa=9.3,95% Cl 1.9 to 44.7), rescue efforts (men : ORa=5.2,95% Cl 1.5 to 18.2), temporarily uninhabitable home (men : ORa=5.8,95% Cl 1.9 to 18.1), personal injury (women : ORa=3.7,95% Cl 1.7 to 8.4), financial difficulties (men : ORa=17.4,95% Cl 4.2 to 72.1 ; women ; ORa=3.4,95% Cl 1.7 to 7.1) and inconvenience due to closure of public services (women : ORa=4.1,95% Cl 1.6 to 9.9). Conclusions : Individual vulnerability, exposure and post-trauma factors were associated with S-PTSD. Vulnerable subgroups, defined by low socioeconomic characteristics may warrant focused screening after such disasters.
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