TABLE 9.

Sensitivity, Specificity, Predictive Value, Positive Likelihood Ratio, and Odds Ratio of Proposed Scoring System^a

	Sensitivity	Specificity	PPV	NPV	Positive Likelihood Ratio
Score ≥1	1.000	0.437	0.016	1.000	1.776
Score ≥2	0.909	0.851	0.054	0.999	6.100
Score ≥3	0.455	0.972	0.132	0.995	16.267
	Odds Ratio (95% CI)				P Value
Score ≥2	57.1 (10.24-318.33)				<.01
Score ≥3	29.0 (8.85-94.90)				<.01

^aNPV, negative predictive value; PPV, positive predictive value.