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Table 4 Predictive accuracy of the SMO models (best performing cut-off 0.6)

From: Development and validation of an obstetric early warning system model for use in low resource settings

Model Sensitivity (%) (95%, CI) Specificity (%) (95%, CI) PPV (%) (95%, CI) NPV (%) (95%, CI) AUROC (95%, CI) Negelkerke R2
Developmental model (n = 600) 86 (81–90) 92 (89–94) 84 (79–89) 93 (90–95) 0·92 (0·90–0·95) 0·69
Validation model (n = 900) 81 (76–86) 90 (87–93) 81 (75–85) 90 (87–93) 0·92 (0·88–0·94) 0·69
Sensitivity model with whole data (n = 5243) 91 (90–92) 71 (68–74) 94 (93–95) 61 (58–64) 0·92 (0·90–0·95) 0·58