ENO2 and cardiac arrest: When measured 24 h after cardiac arrest, the NSE values were, respectively, 26.21 ± 22.67 for survivors and 70.22 ± 37.75 μg/L for patients who did not survive hospital discharge (SMD = −2.90; 95% CI: −3.68 to −2.12; p < 0.001; Figure 5).