The long-term Impact of The Earthquake on Substance Use

Abstract

Earthquake is associated with several health conditions such as posttraumatic stress disorder (PTSD), depression and cardiovascular disease. However, the association between earthquake and substance use has been less studied to date. We conducted a historical cohort study 17 years after the Bam earthquake by enrolling 818 households using multi-stage cluster sampling. The sample consisted of earthquake-exposed and non-exposed citizens. ASSIST Screening Test was used to determine substance use. Logistic regression analysis was used to evaluate the association of variables of interest with substance use. Nearly 60% of the study subjects were female and the mean ± SD age of the sample was 46.6±11.5 years. The prevalence of tobacco, alcohol, and other drugs use in exposed group was 19.5%, 24.9%, and 21.6%, respectively. The corresponding figures in the non-exposed group were 15.6%, 19.3%, and 20.1%, respectively (P>0.05). The logistic regression model found no association between the history of earthquake exposure and risk of any current drug use. Our results showed those 17 years after the Bam earthquake, there was no relationship between earthquake exposure and substance use.