Table 3

Statistical metrics describing the accuracy of the Pitch Side Concussion Assessment (PSCA) tool

Accuracy metric for the PSCA toolPoint estimate95% CI
Concussion prevalence39.0%32.0 to 47.3
Sensitivity84.6%73.5 to 92.4
Specificity74.0%64.3 to 82.3
Likelihood ratio (+)3.32.3 to 4.6
Likelihood ratio (−)0.20.1 to 0.4
Diagnostic OR15.77.0 to 34.8
Positive predictive value67.9%56.6 to 77.8
Negative predictive value88.1%79.2 to 94.1