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Table 4 Predictive performance of STOP-Bang screening tools at difference BMI cutoff against perioperative complications

From: Modified STOP-Bang for predicting perioperative adverse events in the Thai population

BMI cutoff Sensitivity Specificity PPV NPV AUC P-value
Modified BMI 25 kg/m2 69.9 (58.0, 80.1) 48.9 (43.4, 54.5) 23.4 (17.9, 29.6) 87.9 (82.3, 92.3) 0.59 (0.53, 0.65) 0.340
Modified BMI 27 kg/m2 67.1 (55.1, 77.7) 53.5 (47.9, 59.0) 24.4 (18.6, 30.9) 87.9 (82.6, 92.1) 0.60 (0.54, 0.66)
Modified BMI 27.5 kg/m2 63.0 (50.9, 74.0) 54.4 (48.9, 59.9) 23.6 (17.8, 30.2) 86.8 (81.4, 91.1) 0.59 (0.53, 0.65)
Modified BMI 30 kg/m2 60.3 (48.1, 71.5) 55.4 (49.8, 60.8) 23.2 (17.4, 29.8) 86.2 (80.8, 90.6) 0.58 (0.52, 0.62)
Original BMI 35 kg/m2 56.2 (44.1, 67.8) 56.9 (51.3, 67.8) 22.5 (16.7, 29.3) 85.3 (79.9, 89.7) 0.57 (0.50, 0.63)
  1. AUC Area under ROC curve, BMI Body mass index, PPV Positive predictive value, NPV Negative predictive value, ROC Receiver operating characteristics curve statistics