Table 2.
Basic characteristics of the study subjects
| PPV group (n = 58) | Control group (n = 56) | P-value | |
|---|---|---|---|
| Age (years) | 70.2 ± 7.0 | 70.0 ± 7.5 | 0.778 |
| BMI(kg/m2) | 22.7 ± 3.1 | 23.0 ± 2.7 | 0.677 |
| Sex | 0.373 | ||
| Male | 38 (65.5) | 41 (73.2) | |
| Female | 20 (34.5) | 15 (26.8) | |
| ASA physical status score | 0.679 | ||
| II | 25 (43.1) | 22 (39.3) | |
| III | 33 (56.9) | 34 (60.7) | |
| Coexisting medical condition | |||
| Hypertension | 18 (31.0) | 18 (32.1) | 0.899 |
| Diabetes | 12 (20.7) | 12 (21.4) | 0.923 |
| Chronic heart disease | 8 (13.8) | 5 (8.9) | 0.414 |
| Chronic lung disease | 5 (8.6) | 8 (14.3) | 0.341 |
| Cerebrovascular diseases | 3 (5.2) | 6 (10.7) | 0.453 |
| Site of surgery | 0.854 | ||
| Colon | 30 (51.7) | 28 (48.3) | |
| Rectum | 28 (50.0) | 28 (50.0) | |
| Duration of laparoscopy (min) | 129.8 ± 45.1 | 127.2 ± 43.4 | 0.761 |
| Duration of surgery (min) | 188.0 ± 54.0 | 189.6 ± 54.1 | 0.873 |
| Duration of anesthesia (min) | 229.3 ± 56.3 | 227.8 ± 57.0 | 0.891 |
Data are presented as mean ± SD
BMI body mass index, ASA American Society of Anesthesiologists