Table 4.
Odds ratios of mortality (logistic regression) three years after elective colectomy, emergency colectomy, and no colectomy among patients admitted for ulcerative colitis and for Crohn's disease in England, 1998-2000; adjusted for age and sex and for age, sex, and major comorbidities
| Type of admission | Odds ratio (95% CI) adjusted for age and sex | Odds ratio (95% CI) adjusted for age, sex, and major comorbidities* |
|---|---|---|
| Ulcerative colitis: | ||
| Elective colectomy | Reference group | Reference group |
| Emergency colectomy | 3.28 (2.20 to 4.89) | 3.04 (2.02 to 4.56) |
| No colectomy | 2.18 (1.56 to 3.05) | 2.18 (1.55 to 3.06) |
| Crohn's disease: | ||
| Elective colectomy | Reference group | Reference group |
| Emergency colectomy | 2.86 (1.95 to 4.19) | 2.68 (1.85 to 4.03) |
| No colectomy | 2.51 (1.81 to 3.46) | 2.49 (1.82 to 3.51) |
| Inclusion of patients with less severe disease and short stay (1-3 days) | ||
| Ulcerative colitis: | ||
| Elective colectomy | Reference group | Reference group |
| Emergency colectomy | 3.24 (2.19 to 4.80) | 3.02 (2.03 to 4.50) |
| No colectomy | 1.96 (1.42 to 2.72) | 1.99 (1.43 to 2.76) |
| Crohn's disease: | ||
| Elective colectomy | Reference group | Reference group |
| Emergency colectomy | 2.74 (1.87 to 4.00) | 2.58 (1.76 to 3.80) |
| No colectomy | 2.14 (1.56 to 2.93) | 2.16 (1.56 to 2.98) |
*Major comorbidities included were ischaemic heart disease, all other circulatory diseases, colorectal malignancies, all other malignancies, diabetes mellitus, liver disease, and chronic obstructive pulmonary disease and asthma. Since patients with inflammatory bowel disease are relatively young, prevalence of comorbidities is low. For patients with ulcerative colitis who had elective colectomy, emergency colectomy, and no colectomy the percentage of cases recorded with various comorbidities were: ischaemic heart disease (2.7%, 5.9%, 4.8%); all other circulatory diseases (6.7%, 12.2%, 8.5%); colorectal malignancies (0.8%, 0.5%, 0.1%); all other malignancies (0.4%, 0.5%, 0.6%); diabetes mellitus (3.3%, 3.8%, 4.6%); liver disease (0.3%, 0.6%, 0.5%); and chronic obstructive pulmonary disease and asthma (3.8%, 5.2%, 4.5%). Values for patients with Crohn's disease were: ischaemic heart disease (1.2%, 2.9%, 2.7%); all other circulatory diseases (4.5%, 8.4%, 5.7%); colorectal malignancies (0.1%, 0.3%, 0.0%); all other malignancies (0.3%, 0.7%, 0.5%); diabetes mellitus (0.7%, 1.7%, 2.2%); liver disease (0.1%, 0.1%, 0.4%); and chronic obstructive pulmonary disease and asthma (3.7%, 4.7%, 4.4%).