TABLE IV.

Sensitivity analyses

Variable	Clinical risk score group
	Moderate + high (≥4)		High (≥6)
	Value	95% CI	Value	95% CI
Sensitivity	0.21	0.07 to 0.46	0.13	0.08 to 0.20
Specificity	0.83	0.76 to 0.90	0.94	0.87 to 0.97
Positive predictive value	0.17	0.11 to 0.24	0.07	0.03 to 0.13
Negative predictive value	0.83	0.76 to 0.89	0.93	0.87 to 0.96

CI = confidence interval.