17. Should have been
referred to ED
Should NOT have been
referred to ED
ED Referral, Yes
(by the online
physician)
87 TP 9 FP
ED Referral, No
(by the online
physician)
18 FN 225 TN
18. Should have been
referred to ED
Should NOT have been
referred to ED
ED Referral, Yes
(by the online
physician)
87 TP 9 FP
ED Referral, No
(by the online
physician)
18 FN 225 TN
Sensitivity = TP/(TP+FN) = 87/105 = 82.85%
Speci
fi
city = TN/(FP + TN) = 225/234 = 96.1%
PPV = TP/(TP + FP) = 87/(87+9) = 90.62%
NPV = TN/(TN+FN) = 225/(225 +18) = 92.59%