Table 1 Patient baseline characteristics
|  | All Patients (n = 1071) |  | Propensity-Matched Patients†(n = 774) | ||||
|---|---|---|---|---|---|---|---|
SILS + 1 (n = 262) N (%) or mean (SD) | CLS (n = 809) N (%) or mean (SD) | p |  | SILS + 1 (n = 258) N (%) or mean (SD) | CLS (n = 516) N (%) or mean (SD) | p | |
Age (year) | 58.32 (11.71) | 59.33 (18.33) | 0.26 | Â | 58.35 (11.63) | 58.40 (21.29) | 0.98 |
Gender (male) | 159 (60.69) | 513 (63.41) | 0.42 | Â | 156 (60.5) | 325 (63.1) | 0.48 |
BMI (kg/m2) | 22.09 (2.95) | 22.19 (2.77) | 0.84 | Â | 22.10 (2.95) | 22.15 (2.78) | 0.81 |
ASA score | Â | Â | 0.35 | Â | Â | Â | 0.84 |
 I | 56 (21.4) | 173 (21.4) |  |  | 54 (20.9) | 117 (22.7) |  |
 II | 191 (72.9) | 565 (69.8) |  |  | 190 (73.6) | 373 (72.3) |  |
 III | 14 (5.3) | 71 (8.8) |  |  | 14 (5.4) | 26 (5.0) |  |
Primary tumor location | Â | Â | 0.73 | Â | Â | Â | 0.67 |
Upper rectum | 60 (22.9) | 125 (15.4) | Â | Â | 59 (22.9) | 101 (19.6) | Â |
Sigmoid colon | 69 (26.3) | 318 (39.3) | Â | Â | 68 (26.4) | 151 (29.3) | Â |
Left sided colon | 43 (16.4) | 125 (15.5) | Â | Â | 42 (16.3) | 89 (17.2) | Â |
Right sided colon | 90 (26.7) | 241 (29.8) | Â | Â | 89 (34.5) | 175 (33.9) | Â |
Clinical TNM stage‡ |  |  | 0.25 |  |  |  | 0.82 |
 I | 30 (11.5) | 122 (15.1) |  |  | 30 (11.6) | 62 (12.0) |  |
 II | 150 (57.3) | 460 (56.9) |  |  | 146 (56.6) | 280 (54.3) |  |
 III | 82 (31.3) | 227 (28.1) |  |  | 82 (31.8) | 174 (33.7) |  |