Table 1. Demographic comparison of study groups.
| Parameter | Group E (n = 43) | Group P (n = 43) | P value |
|---|---|---|---|
| Age (years) | 57 ± 9 | 59 ± 9 | 0.245 |
| Sex (female, %) | 20 (46.5) | 16 (37.2) | 0.382 |
| Height (cm) | 164 ± 7 | 163 ± 7 | 0.766 |
| Weight (kg) | 59.6 ± 8.4 | 60.5 ± 9.5 | 0.666 |
| BMI (kg/m2) | 22.2 ± 2.4 | 22.6 ± 2.8 | 0.463 |
| ASA physical status (I/II/III) | 2/41/0 | 4/38/1 | 0.411 |
| Lung function | |||
| FVC (L) | 3.29 ± 0.81 | 3.31 ± 0.68 | 0.907 |
| FEV1 (L) | 2.69 ± 0.75 | 2.57 ± 0.55 | 0.388 |
| FEV1/FVC × 100 (%) | 80.9 ± 10.8 | 82.4 ± 8.9 | 0.485 |
| History of smoking | 19 (44.2) | 13 (30.2) | 0.181 |
| History of dizziness | 2 (4.7) | 5 (11.6) | 0.433 |
| History of hypertension | 14 (32.6) | 9 (20.9) | 0.223 |
| History of diabetes mellitus | 3 (7.0) | 4 (9.3) | 1.000 |
| Duration of anesthesia (min) | 178 ± 41 | 185 ± 42 | 0.445 |
| Operation time (min) | 137 ± 37 | 146 ± 38 | 0.258 |
| Blood loss | 110 ± 89 | 89 ± 38 | 0.157 |
| Total intraoperative dose of remifentanil | 583 ± 203 | 562 ± 165 | 0.566 |
| Number of inserted drains | 0.483 | ||
| 1 | 3 | 6 | |
| 2 | 40 | 37 |
Data are presented as the mean ± standard deviation or number of patients (%).
ASA: American Society of Anesthesiologist; BMI: body mass index; FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity