Table 5.
Results of a multivariable regression model investigating outcomes in relation to approach to surgery
| Measure of effect | |||
|---|---|---|---|
| Approach to surgery | Complete case | Multiple imputation | |
| Postoperative length of stay | Open | 1·00 | 1·00 |
| Laparoscopic completed | 0·65 (0·64, 0·66) | 0·65 (0·64, 0·66) | |
| Conversion | 0·92 (0·89, 0·95) | 0·93 (0·89, 0·96) | |
| 30-day postoperative mortality | Open | 1·00 | 1·00 |
| Laparoscopic completed | 0·57 (0·49, 0·66) | 0·55 (0·48, 0·64) | |
| Conversion | 0·67 (0·50, 0·90) | 0·68 (0·52, 0·90) | |
| 1-year survival | Open | 1·00 | 1·00 |
| Laparoscopic completed | 0·61 (0·56, 0·66) | 0·60 (0·55, 0·65) | |
| Conversion | 0·86 (0·72, 1·03) | 0·84 (0·71, 1·00) | |
Values in parentheses are 95 per cent confidence intervals. The model was adjusted for sex, age at diagnosis, Index of Multiple Deprivation (IMD) income category, year of operation, tumour site (colon/rectum), modified Dukes' stage, operation type (elective or emergency) and presence of co-morbidity.