Table 2.
Hospital stay
| Hospital stay <10 days n/mean (%/SD) | Hospital stay ≥10 days n/mean (%/SD) | p-value | |
|---|---|---|---|
| Age | 59.8 (9.3) | 62.1 (7.2) | 0.39 |
| Female | 49 (23.9%) | 24 (38.7%) | 0.02 |
| BMI | 28.0 (4.2) | 27.5 (4.5) | 0.43 |
| Hypertension | 160 (78.4%) | 44 (71.0%) | 0.22 |
| Diabetes mellitus | 52 (25.4%) | 14 (22.6%) | 0.66 |
| Arrhythmia | 41 (20.0%) | 21 (33.9%) | 0.02 |
| Hyperlipidemia | 122 (59.5%) | 34 (54.8%) | 0.51 |
| Renal failure | 18 (8.8%) | 7 (11.3%) | 0.55 |
| COPD | 19 (9.3%) | 18 (29.0%) | <0.001 |
| NYHA III/IV | 14 (6.8%) | 16 (25.8%) | <0.001 |
| Stroke | 6 (2.9%) | 2 (3.2%) | 0.90 |
| Perioperative factors | |||
| Operation time | 134.0 (40.2) | 166.9 (74.6) | 0.001 |
| Off pump | 118 (80.0%) | 29 (19.7%) | 0.14 |
| CABG | 137 (78.7%) | 37 (21.3%) | 0.30 |
| Valve surgery | 72 (71.3%) | 29 (28.7%) | 0.10 |
| Postoperative factors | |||
| ICU days | 1.46 (3.00) | 5.54 (9.16) | 0.001 |
| Respiratory failure | 4 (2.0%) | 8 (12.9%) | <0.001 |
| Bleeding | 12 (5.9%) | 8 (12.9%) | 0.07 |
| Neurological disorder | 3 (1.5%) | 7 (11.3%) | <0.001 |
| Sepsis | 2 (1.0%) | 5 (8.1%) | 0.002 |
| Antidepressant therapy | 3 (1.5%) | 6 (9.7%) | 0.002 |
SD: standard deviation; BMI: body mass index; COPD: Chronic obstructive pulmonary disease; NYHA: New York Heart Association; CABG: Coronary artery bypass grafting; IABP: intraaortic balloon pump.
Bold values represent statistical significance.