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. Author manuscript; available in PMC: 2022 Jan 24.
Published in final edited form as: Ann Surg. 2020 Dec;272(6):996–1005. doi: 10.1097/SLA.0000000000003276

Figure 2: Model Calibration: Observed vs. Predicted 30 day Mortality Across the Range of RAI-rev Scores in (a) women [c=0.89] and (b) men [c=0.85].

Figure 2:

Predicted mortality for patients undergoing elective surgery in the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) database was calculated using logistic regression with RAI-rev scores as the sole independent variable. The predicted mortality for each revised RAI score is plotted against the observed mortality with 95% confidence intervals.