Figure 3.

Combined Mantel–Haenszel weighted odds ratios and 95% confidence intervals for lifetime prevalence of mental disorders in studies of lesbian, gay, and bisexual versus heterosexual populations that used random and nonrandom samples. Each calculated combined Mantel–Haenszel weighted odds ratio is displayed between the upper and lower bounds of its respective 95% confidence interval. Odds ratios were recalculated from aggregated data using the Statcalc procedure of the statistical software Epi Info (Centers for Disease Control and Prevention, 2001). This procedure does not adjust for demographics characteristics or any other control variables (e.g., sampling weights) that may be necessary to arrive at unbiased population estimates. These statistics are provided to allow synthesis of the risk for lesbian, gay, and bisexual versus heterosexual respondents in the studies, but they cannot be used as accurate estimates of adjusted population odds ratios.