Table 2.
Univariate and multivariate analysis for factors contributing to being in the group with high stoma rates
| Factor | Univariate | Multivariate | ||
|---|---|---|---|---|
| Cowboys [n (%)] | Chickens [n (%)] | ORa | 95 % CI | |
| Age, mean | 66 | 66 | 0.99 | 0.98–1.01 |
| Female sex | 247 (41) | 210 (40) | 0.88 | 0.68–1.14 |
| ASA score | ||||
| 1 | 157 (30) | 149 (30) | 1.0 | Ref |
| 2 | 297 (56) | 307 (60) | 1.13 | 0.76–1.36 |
| 3+ | 79 (15) | 52 (10) | 0.81 | 0.55–1.30 |
| Urgency | ||||
| Urgent operation | 18 (4) | 4 (0.8) | 0.29 | 0.09–0.89 |
| Preoperative surgery, yes | 24 (4) | 25 (5) | 1.19 | 0.64–2.24 |
| T stage (p) | ||||
| T0 | 22 (4) | 32 (7) | 1.0 | Ref |
| T1 | 53 (9) | 55 (11) | 1.35 | 0.36–5.00 |
| T2 | 193 (32) | 165 (32) | 1.02 | 0.29–3.61 |
| T3 | 314 (52) | 260 (50) | 1.08 | 0.31–3.78 |
| T4 | 22 (4) | 9 (2) | 0.62 | 0.14–2.74 |
| Abdominal surgical history, yes | 135 (22) | 144 (28) | 1.26 | 0.94–1.70 |
| Tumor distance—anal verge, >10 cm | 225 (37) | 137 (33) | 0.87 | 0.66–1.14 |
| Neoadjuvant therapy, none | 171 (28) | 100 (19) | 1.0 | Ref |
| 5 × 5 | ||||
| 5 × 5 Gy | 301 (50) | 308 (60) | 1.67 | 1.20–2.31 |
| Chemoradiation | 132 (22) | 133 (22) | 1.13 | 0.72–1.69 |
| Surgical treatment, laparoscopy | 291 (50) | 286 (55) | 1.09 | 0.84–1.41 |
| Hospital type, teaching | 259 (43) | 269 (52) | 2.88 | 2.04–4.10 |
| Volume | ||||
| <25 | 191 (32) | 141 (27) | 1.0 | Ref |
| 25–50 | 222 (36) | 274 (53) | 1.18 | 0.86–1.62 |
| >50 | 191 (32) | 106 (20) | 0.27 | 0.17–0.43 |
Bolded data indicate statistically significant (p < 0.05)
OR odds ratio, CI confidence interval, ASA American Society of Anesthesiologists
aORs display the odds for being in the group with high stoma rates