Table 3.

Accuracy of a previously used [5] ICD-10-based algorithm for major bleeding

N	True positive	True negative	False positive	False negative	Sensitivity % (95% CI)	Specificity % (95% CI)	PPV %(95% CI)	NPV %(95% CI)	Positive LR % (95% CI)	Negative LR % (95% CI)
16,012	482	15,121	155	254	65.5 (61.9 to 68.9)	99.0 (98.8 to 99.1)	75.7 (72.1 to 78.9)	98.3 (98.1 to 98.5)	64.5 (21.8 to ∞)	0.35 (0.00 to 2.08)

PPV and NPV denote positive and negative predictive values respectively, LR denotes likelihood ratio, CI denotes Clopper-Pearson’s (exact) confidence interval