Table 1.
Comparison of general data between the two groups
| Characteristics | Titration group (n = 40) | Control group (n = 40) | t/χ2 | P |
|---|---|---|---|---|
| Male/Female (n) | 18/22 | 21/19 | 0.450 | 0.502 |
| Age (years) | 68.2±6.4 | 67.7±6.8 | 0.339 | 0.736 |
| BMI (kg/m2) | 26.81±4.32 | 25.73±3.50 | 1.255 | 0.213 |
| ASA II/III grade (n) | 16/24 | 18/22 | 0.205 | 0.651 |
| Mechanical ventilation (h) | 3.11±0.80 | 3.23±0.71 | -0.595 | 0.554 |
| Operation time (h) | 2.43±0.52 | 2.54±0.63 | -0.810 | 0.421 |
| FEV1/FVC (%) | 87.12±4.93 | 86.74±5.23 | 0.354 | 0.724 |
| Propofol (mg) | 258.62±37.51 | 267.32±41.84 | -0.980 | 0.330 |
| Remifentanil (μg) | 185.32±77.95 | 173.62±82.43 | 0.653 | 0.516 |
| Compound sodium lactate (mL) | 363.71±87.33 | 382.34±90.52 | -0.936 | 0.352 |
Note: BMI: body mass index; ASA: American Society of Anesthesiologists; FEV1/FVC: forced expiratory volume in the first second/forced vital capacity. χ2: Chi-square test value; t: t-test value.