Weighted means, frequencies and odds ratios (ORs) of sociodemographic correlates, prevalence of psychiatric disorders and rates of treatment-seeking were computed. Analyses of variance followed by post hoc tests were used to compare the means of continuous variables. Adjusted odds ratios (AORs) derived from multiple logistic regressions indicate associations between a specific outcome (e.g., psychiatric disorders) and sociodemographic correlates of respondents with and without PTSD and with and without alcohol dependence. We consider two percentage estimates significantly different from each other if their 95% confidence intervals (95% CI) do not overlap. Standard errors and 95% confidence intervals were estimated using SUDAAN, to adjust for complex design of the NESARC.
