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Table 4 Accuracy of the nomogram score in the estimation of the risk of pelvic arterial bleeding

From: A nomogram to predict arterial bleeding in patients with pelvic fractures after blunt trauma: a retrospective cohort study

Variable

Value (95% CI)

Area under ROC curve, concordance index

0.8579 (0.7814–0.9343)

Cutoff score

68.65

Sensitivity, %

78.6 (60.5–89.8)

Specificity, %

78.3 (70.1–84.8)

Positive predictive value, %

45.8 (32.6–59.7)

Negative predictive value, %

94.0 (85.5–97.2)

Positive likelihood ratio

3.622 (2.452–5.363)

Negative likelihood ratio

0.273 (0.134–0.559)

  1. ROC receiver operating curve, CI confidence interval