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. Author manuscript; available in PMC: 2021 Jul 1.

Published in final edited form as: Am J Surg. 2019 Oct 9;220(1):114–119. doi: 10.1016/j.amjsurg.2019.10.009

Figure 1. — a) Discrimination plot. Values on the x-axis are postoperative complication status from the NSQIP test set and values on the y-axis are predicted probabilities from the model fit to the test set. b) Hosmer-Lemeshow Calibration plot. Values on the x-axis are deciles of predicted risk of any complication and values on the y-axis are rates of complications for each decile. The two different lines are observed and expected rates.

Figure 1. — a) Discrimination plot. Values on the x-axis are postoperative complication status from the NSQIP test set and values on the y-axis are predicted probabilities from the model fit to the test set. b) Hosmer-Lemeshow Calibration plot. Values on the x-axis are deciles of predicted risk of any complication and values on the y-axis are rates of complications for each decile. The two different lines are observed and expected rates.