TABLE 2.

Summary Accuracy Measures of the Clinical Decision Tree Using the Validation Sample (n = 2,504)^*

	Estimate (95% Confidence Interval)
Sensitivity	0.72 (0.70–0.74)
Specificity	0.69 (0.67–0.72)
Positive predictive value	0.77 (0.74–0.79)
negative predictive value	0.64 (0.61–0.67)
Positive likelihood ratio	2.36 (2.13–2.59)
Negative likelihood ratio	0.40 (0.37–0.44)

^*The same decision tree (and accuracy measures) was generated when using only physiologic predictors or both physiologic and demographic predictors.