Figure 2.

Forest plot illustrating the odds ratios for mortality in the post-2003 time period as compared to the pre-2003 time period. Odds ratios are illustrated for medical patients, surgical patients and overall. The two studies by Volpp included both medical and surgical patients. For those studies, the medical patient data were included in the top portion with the other medical studies, and the surgical patient data were included in the bottom portion with the surgical studies. The boxes around the mean represent the study weight, while the lines extending outward from the mean represent the 95% confidence interval around the odds ratio.