Fig. 6
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 psychiatric disorders. 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: 191.2, df = 10, P < 0.0001. I2 = 94.8. Footnote: PD- Psychiatric Disorders (Definitions for each study are listed in Appendix 2). The Bohnert et al. (2011), Bohnert et al. (2012) and Seal et al. 2012 papers arose from the same underlying population