Table 2. Pooled test characteristics.

Since there was one outlier in the articles included in this analysis, results are presented both with and without the data from that outlier included. The results are reported as point estimates with 95% confidence intervals. LR+ = Positive Likelihood Ratio, LR− = Negative Likelihood Ratio, PPV = Positive Predictive Value, NPV = Negative Predictive Value.

	All studies (n=10)	Outlier removed (n=9)
Sensitivity	0.97 (0.92–0.99)	0.97 (0.95–0.99)
Specificity	0.96 (0.89–0.98)	0.96 (0.92–0.98)
LR+	20 (8–49)	24 (12–47)
LR−	0.03 (0.02–0.07)	0.03 (0.01–0.06)
PPV	0.96 (0.92–0.99)	0.97 (0.94–0.98)
NPV	0.96 (0.91–0.98)	0.97 (0.93–0.98)