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Table 2 Clinical outcomes between study cohorts

From: Impact of lactate dehydrogenase on prognosis of patients undergoing cardiac surgery

Outcomes Low LDH (≤ 328) High LDH (> 328) P
MIMIC III N = 1749 N = 576
In-hospital mortality, n (%) 27 (1.5%) 51 (8.9%) < 0.001
1-year mortality, n (%) 131 (7.5%) 107 (18.6%) < 0.001
Prolonged ventilation, n (%) 222 (12.7) 207 (35.9%) < 0.001
CRRT, n (%) 86 (4.9%) 77 (13.4%) < 0.001
ICU stay > 6 days, n (%) 307 (17.6%) 264 (45.8%) < 0.001
Hospital stay > 15 days, n (%) 356 (20.4%) 242 (42.0%) < 0.001
MIMIC IV N = 1196 N = 191 P
In-hospital mortality, n (%) 20 (1.7%) 15 (7.8%) < 0.001
1-year mortality, n (%) 36 (3.0%) 18 (9.4%) < 0.001
Prolonged ventilation, n (%) 181 (15.1%) 85 (44.5%) < 0.001
CRRT, n (%) 67 (5.6%) 35 (18.3%) < 0.001
ICU stay > 6 days, n (%) 114 (9.5%) 52 (27.2%) < 0.001
Hospital stay > 15 days, n (%) 160 (13.4%) 83 (43.5%) < 0.001
  1. MIMIC Medical Information Mart for Intensive Care, LDH lactate dehydrogenase, ICU intensive care units, CRRT continuous renal replacement therapy