Table 5.

Predictive value of PEW score ≥ 9 compared to RAPID Index.

n = 72	PEW score ≥ 9	RAPID index
Sensitivity; % (95% CI)	86.1 (70.5, 95.3)	97.2 (85.5, 99.9)
Specificity; % (95% CI)	80.6 (64.0, 91.8)	25.0 (12.1, 42.2)
Difference in sensitivity; % (95% CI)	11.1 (-4.5, 26.7)
Difference in specificity; % (95% CI)	55.6 (34.8, 76.3)
Positive predictive value*; % (95% CI)	20.8 (17.2, 24.9)	7.1 (7.0, 7.3)
Negative predictive value*; % (95% CI)	99.0 (98.6, 99.3)	99.3 (95.0, 99.9)

*Calculated assuming a prevalence of 5.6%.