Table 1.
Clinical comparison of radical operation data for rectal cancer
| LRR (n = 492) | ORR (n = 424) | P value | |
| Gender | |||
| Male | 301 | 243 | 0.235 |
| Female | 191 | 181 | |
| Age (yr, mean ± SD) | 64.5 ± 11.9 | 63.3 ± 12.3 | 0.290 |
| BMI (kg/m2) | 23.274 ± 3.463 | 23.438 ± 3.533 | 0.999 |
| Preoperative comorbid diseases | 52.8% (260/492) | 58.7% (249/424) | 0.074 |
| Hypertension | 60 | 57 | |
| Coronary heart disease | 37 | 34 | |
| Arrhythmia | 21 | 20 | |
| COPD | 10 | 13 | |
| Pulmonary infection | 3 | 5 | |
| Asthma | 2 | 3 | |
| Diabetes | 42 | 70 | |
| Hepatic cirrhosis | 4 | 3 | |
| Cerebral infarction | 20 | 6 | |
| Renal failure | 17 | 7 | |
| Autoimmune | 5 | 0 | |
| Others | 39 | 31 | |
| ASA score | 0.498 | ||
| I | 109 | 108 | |
| II | 321 | 264 | |
| III | 62 | 52 | |
| Previous abdominal surgery | 75 (15.2%) | 65 (15.3%) | 0.971 |
LRR: Laparoscopy in radical resection; ORR: Open radical resection; BMI: Body mass index; COPD: Chronic obstructive pulmonary disease; ASA: American Society of Anesthesiologists.