Table 3:
Matched bivariate associations for patients with and without preoperative combined bowel preparation (N=528)
| Preoperative Combined Bowel Prep | |||
|---|---|---|---|
| Characteristic | |||
| Yes (n=264) | No (n=264) | P value | |
| Age | |||
| Mean | 61.8 ± 13.5 | 62.0 ± 13.5 | 0.767a |
| Gender | |||
| Male | 146 (55.3) | 149 (56.4) | 0.856b |
| Female | 118 (44.7) | 115 (43.6) | |
| Race | |||
| White | 166 (62.9) | 161 (61.0) | 0.875c |
| Black | 87 (32.9) | 88 (33.3) | |
| Asian | 7 (2.7) | 7 (2.7) | |
| Other | 4 (1.5) | 8 (3.0) | |
| BMI | |||
| < 18.5 | 15 (5.7) | 15 (5.7) | 0.953c |
| 18.5 – 24.9 | 85 (32.2) | 86 (32.6) | |
| 25 – 29.9 | 85 (32.2) | 83 (31.4) | |
| >30 | 71 (26.9) | 70 (26.5) | |
| Unknown | 8 (3.0) | 10 (3.8) | |
| Stage | |||
| Stage 1 | 63 (23.9) | 64 (24.2) | 0.869c |
| Stage 2 | 79 (29.9) | 78 (29.6) | |
| Stage 3 | 82 (31.1) | 81 (30.7) | |
| Stage 4 | 40 (15.1) | 41 (15.5) | |
| Site | |||
| Colon | 192 (72.7) | 197 (74.6) | 0.615b |
| Rectum | 72 (27.3) | 67 (25.4) | |
| Emergent Surgery | |||
| No | 262 (99.2) | 262 (99.2) | 1.0b |
| Yes | 2 (0.8) | 2 (0.8) | |
| Anastomotic Leak | |||
| No | 249 (94.3) | 246 (93.2) | 0.602b |
| Yes | 15 (5.7) | 18 (6.8) | |
| SSI | |||
| No | 228 (86.4) | 230 (87.1) | 1.0b |
| Yes | 36 (13.6) | 34 (12.9) | |
| Radiation | |||
| No | 221 (83.7) | 212 (80.3) | 0.286b |
| Yes | 43 (16.3) | 52 (19.7) | |
| Chemotherapy | |||
| No | 177 (67.1) | 179 (67.8) | 0.549b |
| Yes | 87 (32.9) | 85 (32.2) | |
| Blood Transfusion | |||
| No | 223 (84.5) | 232 (87.9) | 0.423b |
| Yes | 41 (15.5) | 32 (12.1) | |
| Years of Follow Up | |||
| 1 year | 75 (28.4) | 73 (27.7) | 0.814c |
| 2 years | 54 (20.5) | 50 (18.9) | |
| 3 years | 53 (20.1) | 64 (24.2) | |
| 4 years | 37 (14.0) | 34 (12.9) | |
| 5 years | 23 (8.7) | 25 (9.5) | |
| ≥6 years | 22 (8.3) | 18 (6.8) | |
SD = standard deviation
BMI = body mass index
SSI = surgical site infection
a
P value determined by Wilcoxon signed rank test
b
P value determined by McNemar Chi-square test
c
P value determined by McNemar-Brokar Chi-square test