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Comparison of phenylephrine usage and postoperative pulmonary complications between the two groups (n = 40, n, %)
| Group | Phenylephrine usage | Pulmonary complications |
|---|---|---|
| Titration group | 10 (25) | 2 (5) |
| Control group | 3 (7.5) | 8 (20) |
| χ2 | 4.501 | 4.114 |
| P | 0.034 | 0.043 |
Note: χ2: Chi-square test value.
