Fig. 8
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 rural residence. 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: 34.5 PÂ <Â 0.0001. I2Â =Â 88.4. Footnote: Definition 1: Counties in metropolitan areas are considered urban and the remaining counties of residence were categorized as rural