Table 1.
Patients characteristics (mean, median, and frequency) stratified by open vs. laparoscopic surgery
| Variable | Open (n = 55) | Laparoscopic (n = 19) | P-value |
|---|---|---|---|
| Sex | 0.491 | ||
| Female | 8 (14.5) | 4 (21.1) | |
| Male | 47 (85.5) | 15 (78.9) | |
| Age (yr) | 68.0 (9.0–95.0) | 70.0 (20.0–84.0) | 0.432 |
| BMIa (kg/m2) | 21.1 (17.3–27.6) | 21.5 (19.4–25.2) | 0.607 |
| ASA PS classification | 0.757 | ||
| I–II | 37 (67.3) | 15 (78.9) | |
| III–IV | 18 (32.7) | 4 (21.1) | |
| Previous operation history | 0.646 | ||
| No | 37 (67.3) | 11 (57.9) | |
| Yes | 18 (32.7) | 8 (42.1) | |
| Comorbidity | 0.447 | ||
| No | 16 (29.1) | 8 (42.1) | |
| Yes | 39 (70.9) | 11 (57.9) | |
| Pain attack frequencyb | 2 (1–7) | 3 (1–5) | 0.338 |
Values are presented as number (%), meana (range), or medianb (range).
BMI, body mass index; ASA, American Society of Anesthesiologists; PS, physical status.