Table 1 Clinical characteristics of thepatients a
Characteristics | Nonobese (<25.0 kg/m2) ( N= 371) | Obese I (25.0 to29.9 kg/m2) (N= 142) | Obese II (≥30 kg/m2) (N= 14) | P-value |
|---|---|---|---|---|
Mean age , yr | 68.6 | 69.7 | 72.5 | 0.109 |
Males, n (%) | 185(49.9%) | 78(54.9%) | 8(57.1%) | 0.537 |
Mean BMI, kg/m 2 | 21.5 | 26.6 | 30.9 | 0.001 |
ASA class, n (%) | 0.295 | |||
I/II | 310(83.6%) | 112(78.9%) | 10(71.4%) | |
III | 61(16.4%) | 30(21.1%) | 4(28.6%) | |
Comorbidity | 0.589 | |||
Yes | 71(19.1%) | 22(15.5%) | 2(14.3%) | |
No | 300(80.9%) | 140(84.5%) | 12(85.7%) | |
Operation type, n (%) | 0.963 | |||
Right colectomy | 123(33.2%) | 47(33.2%) | 5(35.7%) | |
Left colectomy/sigmoidectomy | 198(53.4%) | 73(51.4%) | 8(57.1%) | |
Low anterior resection | 20(5.4%) | 11(7.7%) | 0(0%) | |
Abdominoperineal resection | 30(8.0%) | 11(7.7%) | 1(7.2%) | |
pT stage, n (%) | 0.861 | |||
T1 | 42(11.3%) | 16(11.3%) | 1(7.1%) | |
T2 | 62(16.7%) | 27(19.0%) | 1(7.1%) | |
T3 orT4 | 267(72.0%) | 99(69.7%) | 12(85.7%) | |
Conversionb, n (%) | 10(2.6%) | 4(2.7%) | 2(12.5%) | 0.113 |