Table 2. Effect of total intravenous crystalloid infusion 24 hours postoperatively on postoperative outcomes (three groups).
| Postoperative outcome | Total intravenous crystalloid infusion 24 h postoperatively | Total P value | ||
|---|---|---|---|---|
| Restrictive group (n=136), <1,080 mL | Moderate group (n=272), 1,080–<1,410 mL | Liberal group (n=155), ≥1,410 mL | ||
| Postoperative pulmonary complications | ||||
| Acute respiratory distress syndrome, n (%) | 2 (1.5) | 1 (0.4) | 1 (0.6) | 0.291 |
| Reintubation, n (%) | 0 (0.0) | 0 (0.0) | 0 (0.0) | – |
| Pulmonary embolism, n (%) | 2 (1.5) | 1 (0.4) | 0 (0.0) | 0.344 |
| Need for bedside bronchoscopy, n (%) | 4 (2.9) | 0 (0.0) | 0 (0.0) | 1.000 |
| Prolonged air leak, n (%) | 5 (3.7) | 6 (2.2) | 2 (1.3) | 0.529 |
| Failure to expand, n (%) | 1 (0.7) | 6 (2.2) | 6 (3.9) | 0.261 |
| Atelectasis, n (%) | 6 (4.4) | 2 (0.7) | 5 (3.2) | 0.083 |
| Pneumonia | <0.001 | |||
| N (%) | 24 (17.6) | 37 (13.6) | 49 (31.6) | |
| OR (95% CI) | 1.390 (0.779–2.478) | 1 | 2.869 (1.750–4.703) | |
| P value | 0.265 | – | <0.001 | |
| Patients with pulmonary complications | <0.001 | |||
| N (%) | 36 (26.5) | 45 (16.5) | 55 (35.5) | |
| OR (95% CI) | 1.815 (1.083–3.043) | 1 | 2.692 (1.684–4.305) | |
| P value | 0.024 | – | <0.001 | |
| Acute kidney injury, n (%) | 3 (2.2) | 8 (2.9) | 2 (1.3) | 0.464 |
| In-hospital mortality, n (%) | 0 | 0 | 0 | – |
| Readmission within 30 days, n (%) | 0 (0.0) | 1 (0.4) | 5 (3.2) | 0.114 |
| Prolonged hospital stay, n (%) | 25 (18.4) | 31 (11.4) | 14 (9.0) | 0.077 |
| Postoperative length of stay, days | 5.9±1.9 | 5.8±2.1 | 5.9±2.3 | 0.572 |
| Total hospital care costs (yuan renminbi) | 58,388.4±8,998.8 | 57,830.2±10,036.1 | 59,133.9±9,808.9 | 0.262 |
Results of binary logistics regression are presented as adjusted OR, 95% CI, and P value. The best-performing moderate group served as the reference group. OR, odds ratio; CI, confidence interval.