Table 4.
Risk of type 2 diabetes following different colectomy procedures in patients without colorectal cancer.
| Variable | Event/n | Person Years | IR | Crude HR (95% CI) | Adjusted HR a (95% CI) |
|---|---|---|---|---|---|
| Non-colectomy controls | 398/2568 | 14254 | 27.92 | Ref. | Ref. |
| Surgery procedures of the colectomy cases | |||||
| Overall | 65/642 | 3151 | 20.63 | 0.74 (0.57–0.96) * | 0.80 (0.61–1.04) |
| Subtotal or total colectomy | 3/41 | 261 | 11.48 | 0.41 (0.13–1.28) | 0.55 (0.18–1.72) |
| Right hemicolectomy, transverse colectomy | 14/169 | 1016 | 13.78 | 0.49 (0.29–0.84) ** | 0.57 (0.34–0.98) * |
| Left hemicolectomy or sigmoid colectomy | 36/294 | 1252 | 28.75 | 1.04 (0.74–1.46) | 1.06 (0.75–1.49) |
IR: incidence rate per 1000 person years; HR: hazard ratio; CI: confidence interval. a Adjusted HR: adjusted for sex, age, and comorbidities in Cox proportional hazards regression. * p < 0.05; ** p < 0.01.