Table 2.
Predictive accuracy in derivation cohort (n = 51 484)
| Variables | Univariable model | Multivariable model | ||
|---|---|---|---|---|
| Odds ratio (95% c.i.) | P | Odds ratio (95% c.i.) | P | |
| Stage | ||||
| IIII | 1.0 | 1.0 | ||
| IV | 1.93 (1.69–2.21) | <0.001 | 1.75 (1.51–2.04) | <0.001 |
| Age* | 3.72 (3.33–4.17) | <0.001 | 2.78 (2.46–3.13) | <0.001 |
| Sex | ||||
| Female | 1.0 | 1.0 | ||
| Male | 1.22 (1.09–1.36) | <0.001 | 1.45 (1.29–1.64) | <0.001 |
| BMI* | 0.83 (0.77–0.89) | <0.001 | 0.87 (0.81–0.93) | <0.001 |
| ASA grade | ||||
| I | 1.0 | 1.0 | ||
| II | 4.99 (3.48–6.99) | <0.001 | 3.09 (2.17–4.40) | <0.001 |
| III | 19.80 (14.02–27.97) | <0.001 | 8.16 (5.72–11.63) | <0.001 |
| IV–V | 81.61 (56.13–118.68) | <0.001 | 25.71 (17.46–37.86) | <0.001 |
| Tumour location | ||||
| Right | 1.0 | 1.0 | ||
| Left | 0.77 (0.68–0.86) | <0.001 | 0.88 (0.77–1.00) | 0.04 |
| Rectum | 0.45 (0.38–0.52) | <0.001 | 0.89 (0.73–1.05) | 0.16 |
| Timing | ||||
| Elective | 1.0 | 1.0 | ||
| Urgent | 2.82 (2.41–3.31) | <0.001 | 1.67 (1.40–1.98) | <0.001 |
| Emergency | 4.32 (3.76–4.96) | <0.001 | 2.16 (1.83–2.54) | <0.001 |
| Approach | ||||
| Laparoscopic | 1.0 | 1.0 | ||
| Open | 2.63 (2.33–2.96) | <0.001 | 1.60 (1.40–1.82) | <0.001 |
*
Odds ratios for continuous variables represent interquartile range odds ratios. The presented odds ratios provide insight into the importance of predictors expressed on a relative scale, and can be considered to represent the contribution to the predicted risk. Presented odds ratios do not necessarily represent the causal relation between predictor and outcome or the magnitude of that effect, if any.