Figure 2.

Receiver‐operating characteristic curve for the probability of favorable neurological outcomes based on the prediction model derived from the derivation dataset. The diagnostic efficacies of four individual parameters (pH, time, age, and pupil size), except for ventricular fibrillation or pulseless ventricular tachycardia (Vf) which was recorded as binary (yes = 1; no = 0), were compared with those of the estimated probability of favorable outcomes computed using the prediction model. Time denotes time from starting cardiopulmonary resuscitation to the return of spontaneous circulation.