Table 1 Baseline characteristics of the patients
| Â | Population (n = 41) |
|---|---|
Age (yr) | 72.29 ± 5.40 |
Gender (M/F) | 26/15 |
BMI (kg/m2) | 23.49 ± 2.96 |
ASA (2/3) | 20/21 |
Anesthesia time (min) | 230.41 ± 98.66 |
Surgery time (min) | 167.83 ± 86.21 |
Type of surgery, n (%) | |
 Laparoscopic resection of rectal cancer | 10 (24.4%) |
 Liver resection | 6 (14.6%) |
 Laparoscopic radical gastrectomy | 6 (14.6%) |
 Laparoscopic colonectomy | 5 (12.2%) |
 Radical prostatectomy | 4 (9.8%) |
 Laparoscopic exploration | 3 (7.3%) |
 Pancreaticoduodenectomy | 3 (7.3%) |
 Total thyroidectomy | 2 (4.9%) |
 Simple mastectomy | 1 (2.4%) |
 Transcervical resection of mediastinal mass | 1 (2.4%) |
Comorbidities, n (%) | |
 Diabetes | 37 (90.2%) |
 Hypertension | 20 (48.8%) |
 Coronary heart disease | 1 (2.4%) |
 Smoking within 1 year | 33 (80.5%) |
 COPD | 37 (90.2%) |
 Stroke | 1 (2.4%) |