Figure 2From: When do confounding by indication and inadequate risk adjustment bias critical care studies? A simulation studyRates of falsely concluding a safe treatment (odds ratio = 1.0) caused statistically significant harm among simulated cohort studies. (A) Rates in studies of n = 1,000 and (B) rates in studies of n = 10,000. AUROC, area under the receiver operator characteristic curve.Back to article page