Table 1 Univariate analysis of clinical and pathological characteristics
Factors | Anastomotic leakage (+) n = 30 | Anastomotic leakage (−) n = 258 | Total n = 288 | P |
|---|---|---|---|---|
Age (years, mean ± SD) | 83.3 ± 3.1 | 82.5 ± 2.2 | 82.8 ± 2.4 | 0.194 |
Gender | 0.081 | |||
Male | 11 (36.7) | 138 (53.5) | 149 (51.7) | |
Female | 19 (63.3) | 120 (46.5) | 139 (48.3) | |
BMI (kg/m2, mean ± SD) | 24.4 ± 4.1 | 23.6 ± 3.6 | 23.9 ± 3.5 | 0.224 |
Distance from the AV | 0.318 | |||
Lower (< 5 cm ) | 14 (46.7) | 88 (34.1) | 102 (35.4) | |
Middle (5–10 cm ) | 9 (30.0) | 111 (43.0) | 120 (41.7) | |
Upper (10–15 cm ) | 7 (23.3) | 59 (22.9) | 66 (22.9) | |
ASA category | 0.090 | |||
I–II | 7 (23.3) | 101 (39.1) | 108 (37.5) | |
III–IV | 23 (76.7) | 157 (60.9) | 180 (62.5) | |
Differentiation | 0.565 | |||
Poor | 8 (26.7) | 56 (21.7) | 64 (22.2) | |
Moderate | 18 (60.0) | 179 (69.4) | 197 (68.4) | |
High | 4 (13.3) | 23 (8.9) | 27 (9.4) | |
Pathologic T stage | 0.510 | |||
T1–T2 | 10 (33.3) | 102 (39.5) | 112 (38.9) | |
T3–T4 | 20 (66.7) | 156 (60.5) | 176 (61.1) | |
Pathologic N stage | 0.642 | |||
N0 | 19 (63.3) | 169 (65.5) | 188 (65.3) | |
N1 | 6 (20.0) | 61 (23.6) | 67 (23.3) | |
N2 | 5 (16.7) | 28 (10.9) | 33 (11.4) | |
Tumor size (cm, mean ± SD) | 4.6 ± 1.9 | 4.4 ± 1.4 | 4.6 ± 1.6 | 0.663 |
Length of specimen removed (cm, mean ± SD) | 10.5 ± 3.3 | 10.9 ± 2.7 | 10.5 ± 2.9 | 0.621 |
LN harvest (n, mean ± SD) | 16.3 ± 7.4 | 17.2 ± 6.9 | 16.9 ± 7.3 | 0.733 |
Previous abdominal surgery | 10 (33.3) | 61 (23.6) | 71 (24.7) | 0.244 |