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. Author manuscript; available in PMC: 2014 Jul 1.
Published in final edited form as: J Trauma Acute Care Surg. 2013 Jul;75(1 0 1):S53–S60. doi: 10.1097/TA.0b013e3182914553

Figure 1.

Figure 1

ROC curves showing cross-validated prediction accuracy for SL for the 4 time intervals, comparing performance using just the confounders (C,W; SL Conf.) with fit using all clinical variables of interest, confounding variables, and indicators of missingness (A,W,C) for SuperLearner (SL all) and stepwise regression (SW all)