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. Author manuscript; available in PMC: 2021 Feb 1.
Published in final edited form as: J Trauma Acute Care Surg. 2020 Feb;88(2):e46–e52. doi: 10.1097/TA.0000000000002474

Figure 2.

Figure 2.

Figure 2.

Interim analysis: distribution of propensity scores in no PHT (top panel) and PHT (bottom panel) groups for midterm (top) and quarter 3 (bottom) interim analyses, resulting from the generalized boosting propensity model (GBM).