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Table 2 Descriptive statistics of some essential postoperative variables in the whole sample (3315 patients)

From: A simple clinical model for planning transfusion quantities in heart surgery

Variables Frequency count and percentage
Morbidity 1273 (38.4%)
Reoperation for bleeding 190 (5.7%)
Lung dysfunction 516 (15.6%)
Low cardiac output 442 (13.3%)
Cardiac arrhythmia 294 (8.9%)
Coma 35 (1.1%)
Stroke 33 (1.0%)
Acute kidney failure 71 (2.1%)
Kidney dysfunction 140 (4.2%)
Sepsis 26 (0.8%)
Pneumonia 51 (1.5%)
Sternal wound infection 17 (0.5%)
Death 58 (1.7%)
Mechanical ventilation > 1 day 422 (12.7%)
Intensive care > 5 days 391 (11.8%)