| Variable | Stapled LAR N = 4751 |
Hand-sewn ISR N = 1461 |
p-value2 |
|---|---|---|---|
| Age | 59 (12) | 60 (11) | 0.2 |
| Sex | 0.011 | ||
| Male | 230 (48%) | 89 (61%) | |
| Female | 245 (52%) | 57 (39%) | |
| BMI | 26.7 (4.7) | 25.3 (3.6) | <0.001 |
| ASA Class | 0.3 | ||
| ASA I-II | 365 (77%) | 106 (73%) | |
| ASA III-IV | 110 (23%) | 40 (27%) | |
| Smoking | 101 (21%) | 28 (19%) | 0.7 |
| Diabetes | 250 (53%) | 21 (14%) | <0.001 |
| Cardiovascular Disease | 76 (16%) | 15 (10%) | 0.11 |
| Previous Abdominal Surgery | 169 (36%) | 22 (15%) | <0.001 |
| Preop Hemoglobin | 12.96 (1.16) | 13.33 (1.00) | <0.001 |
| Creatinine | 0.88 (0.18) | 0.91 (0.17) | 0.038 |
| Preop Albumin | 4.10 (0.45) | 4.15 (0.26) | 0.15 |
| Tumor Distance from Anal Verge (cm) | 6.83 (2.57) | 2.13 (0.74) | <0.001 |
| T Stage | 0.002 | ||
| T1-T2 | 245 (52%) | 53 (36%) | |
| T3-T4 | 230 (48%) | 93 (64%) | |
| N Stage | <0.001 | ||
| Negative | 156 (33%) | 79 (54%) | |
| Positive | 319 (67%) | 67 (46%) | |
| neoadjuvant_therapy | <0.001 | ||
| None | 54 (11%) | 0 (0%) | |
| Chemotherapy | 30 (6.3%) | 42 (29%) | |
| Chemoradiotherapy | 391 (82%) | 104 (71%) | |
| 1 Mean (SD); n (%) | |||
| 2 Welch Two Sample t-test; Pearson’s Chi-squared test | |||