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Fig. 2 | BMC Pregnancy and Childbirth

Fig. 2

From: Development and internal validation of a model predicting severe maternal morbidity using pre-conception and early pregnancy variables: a population-based study in Ontario, Canada

Fig. 2

Receiver operating characteristic curve showing the discrimination of the clinical prediction model for maternal end-organ injury or death. Legend: Outcomes are those arising between 20 weeks’ gestation and 42 days after birth using variables measured in the index pregnancy prior to 20 weeks’ gestation (a); the index pregnancy prior to 20 weeks’ gestation and pre-pregnancy (b); the index pregnancy prior to 20 weeks’ gestation, pre-pregnancy, and in a previous pregnancy (c). Predictor variables and odds ratios are shown in Tables S5 (a), S6 (b), and S7 (c). Analysed is the cohort of 333,435 births among parous women. a C-statistic for Area Under the Curve = 0.61 (95% CI 0.59–0.63). b C-statistic for Area Under the Curve = 0.69 (95% CI 0.67–0.70). c C-statistic for Area Under the Curve = 0.71 (95% CI 0.69–0.73)

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