GPT and cardiac arrest: In the univariate logistic analysis, Killip class, cardiac arrest before admission, admission systolic blood pressure, admission ALT, peak CK‐MB, eGFR, N‐terminal probrain natriuretic peptide, and LVEF significantly predicted in‐hospital mortality (per 10 U/L, odds ratio [OR] 1.250, confidence interval [CI] 1.121–1.394, p < 0.001; Table 3).