Table 2 Characteristics of low anterior resection and short-term outcomes. The Chi-square test was used for analysis of categorical variables. The § indicates when Fisher's exact test was used. The Student’s t-test was performed for continuous variables. A P-value <0.05 (marked with *) was considered to be statistically significant
Variables | All (%) n = 151 | Group A n = 79 | Group B n = 72 | Pearson’s Chi Square (df) | Cramer’s V | P-value |
Operation | 0.23 (2) | 0.04 | 0.89 | |||
Open | 126 (83) | 67 (85) | 59 (82) | |||
Laparoscopic | 23 (15) | 11 (14) | 12 (17) | |||
Conversion | 2 (1) | 1 (1) | 1 (1) | |||
Type of anastomosis | 0.93 (3) | 0.25 | 0.03* | |||
End-end | 45 (30) | 18 (23) | 27 (38) | |||
Side-end | 60 (40) | 30 (38) | 30 (42) | |||
J-pouch | 26 (17) | 15 (19) | 11 (15) | |||
Coloanal | 20 (13) | 16 (20) | 4 (6) | |||
R1 resection | 3 (2.0) | 2 (3) | 1 (1) | 2.12 (2) | 0.12 | 0.35§ |
CDC | 0.10 (1) | 0.03 | 0.76 | |||
≥ 3 | 34 (23) | 17 (22) | 17 (24) | |||
Complications | ||||||
Fascial dehiscence | 2 (1) | 2 (3) | 0 | 1.85 (1) | 0.11 | 0.50§ |
Surgical site infections | 32 (21) | 17 (22) | 15 (21) | 0.01 (1) | 0.01 | 0.92 |
Deep vein thrombosis | 1 (1) | 1 (1) | 0 | 0.92 (1) | 0.08 | 0.52§ |
Lung embolism | 1(1) | 1 (1) | 0 | 0.92 (1) | 0.08 | 0.52§ |
Urinary tract infections | 17 (11) | 6 (8) | 11 (16) | 2.32 (1) | 0.12 | 0.12 |
Pneumonia | 6 (4) | 1 (1) | 5 (7) | 3.18 (1) | 0.15 | 0.10§ |
Paralytic ileus | 9 (6) | 5 (6) | 4 (6) | 0.04 (1) | 0.02 | 0.84§ |
Anastomotic leakage | 19 (13) | 9 (11) | 10 (14) | 0.21 (1) | 0.04 | 0.64 |
AKI (KDIGO) | 5.14 (3) | 0.21 | 0.16 | |||
No AKI | 106(89) | 56 (90) | 50 (88) | |||
Stage I | 9 (8) | 6 (10) | 3 (5) | |||
Stage II | 2 (2) | 0 | 2 (4) | |||
Stage III | 2 (2) | 0 | 2 (4) | |||
Reoperation | 25 (17) | 12 (15) | 13 (18) | 0.22 (1) | 0.04 | 0.64 |
All (mean, SD) | Group A (mean, SD) | Group B (mean, SD) | F-ratio | P-value | ||
Duration of surgery (minutes) | 240 (80) | 245 (73) | 234 (87) | 0.61 | 0.44 | |
Tumor distance from anal verge (centimeter) | 8 (4) | 8 (4) | 8 (4) | 0.05 | 0.83 | |
Length of Hospital stay in days | 17 (11) | 16 (10) | 18 (12) | 0.90 | 0.35 | |
Time to reversal of DLI in days | 160 (136) | 163 (149) | 158 (122) | 0.05 | 0.83 | |
Follow up in months | 56 (44) | 62 (43) | 50 (43) | 2.43 | 0.12 | |