Table 2.

False-positive rate, false-negative rate, and mean charges in the generalist scenario*

Scenario	% False-positive (95% CI)	% False-negative (95% CI)	Mean charges (95% CI)
Ultrasound alone	8.5% (1%–17%)	11.9% (2%–21%)	$476.30 ($256–$1275)
EDX alone	1.4% (0%–7%)	18.9% (8%–31%)	$400.30 ($289.20–$920.90)
Ultrasound followed by EDX	9.6% (2%–20%)	3.7% (0%–11%)	$562.90 ($323.50–$1372)

* Based on repeated uniform sampling of 100-patient subgroups from the fictional population; EDX = electrodiagnostic testing.