Figure 2.

Forest plot of risk ratios for 30-day mortality. Markers represent point estimates of risk ratios, marker size represents study weight in random-effects meta-analysis. Horizontal bars indicate 95% confidence intervals. CI, confidence interval; RR, risk ratio.

Fröhlich et al. BMC Medicine 2014 12:41   doi:10.1186/1741-7015-12-41
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