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Figure 3: L'Abbe plot for treatment effect versus proportion of events in placebo group treatment effect (logor) of PONV prophylaxis is plotted against control event rate (CER). The area of each circle is inversely proportional to the variance of the estimated treatment effect in the trial

Figure 3: L'Abbe plot for treatment effect versus proportion of events in placebo group treatment effect (logor) of PONV prophylaxis is plotted against control event rate (CER). The area of each circle is inversely proportional to the variance of the estimated treatment effect in the trial