Fig. 2
From: Risk markers for fatal and non-fatal prescription drug overdose: a meta-analysis
Forest plot, summary odds ratio and 95% confidence of prescription drug overdose with sex. The size of each square is proportional to the relative weight that each study contributed to the summary odds ratio. The summary odds ratio is indicated by the diamond. Horizontal bars indicate the 95% confidence interval. Heterogeneity: Q statistic: 553.2, df = 21, P < 0.0001. I2 = 96.2. Footnote: The Bohnert et al. (2011) and Bohnert et al. (2012) papers arose from the same underlying population. In the CDC Medicaid 2009 study, the Medicaid population is a subgroup of the total population. Note: The standard errors for the CDC Prescription opioid pain relievers 2011 and Rudd et al. (2016) studies may be smaller than what was used to calculate the confidence intervals. The sample size for this study exceeded the maximum allowed by Comprehensive Meta-Analysis software, so one digit was removed from each component of the odds ratio