Table 3.
Characteristics of patients in whom laparoscopic surgery was completed and those in whom it was converted to an open procedure
| Laparoscopic completed | Converted from laparoscopic | |||
|---|---|---|---|---|
| n* | Multilevel imputed† | n* | Multilevel imputed† | |
| Age at diagnosis (years) | ||||
| < 60 | 1628 (86·6) | 86·5 (84·6, 88·4) | 251 (13·4) | 13·5 (11·6, 15·4) |
| 60–69 | 2711 (84·3) | 84·3 (82·6, 86·0) | 506 (15·7) | 15·7 (14·0, 17·4) |
| 70–79 | 3133 (84·1) | 83·6 (81·9, 85·3) | 594 (15·9) | 16·4 (14·7, 18·1) |
| ≥ 80 | 1831 (85·9) | 85·6 (83·7, 87·4) | 301 (14·1) | 14·4 (12·6, 16·3) |
| Year of diagnosis | ||||
| 2006 | 1629 (86·8) | 86·4 (84·3, 88·5) | 248 (13·2) | 13·6 (11·5, 15·7) |
| 2007 | 2943 (84·2) | 84·1 (82·5, 85·8) | 554 (15·8) | 15·9 (14·2, 17·5) |
| 2008 | 4731 (84·8) | 84·5 (82·9, 86·1) | 850 (15·2) | 15·5 (13·9, 17·1) |
| Sex | ||||
| M | 4919 (82·5) | 82·2 (80·6, 83·8) | 1042 (17·5) | 17·8 (16·2, 19·4) |
| F | 4384 (87·8) | 87·6 (86·3, 88·9) | 610 (12·2) | 12·4 (11·1, 13·7) |
| Operation type | ||||
| Elective | 9083 (85·2) | 84·9 (83·7, 86·2) | 1582 (14·8) | 15·1 (13·8, 16·3) |
| Emergency | 220 (75·9) | 75·6 (69·6, 81·6) | 70 (24·1) | 24·4 (18·4, 30·4) |
| Modified Dukes' stage at diagnosis | ||||
| A | 1677 (87·3) | 87·3 (85·3, 89·2) | 245 (12·7) | 12·7 (10·8, 14·7) |
| B | 3423 (84·7) | 84·5 (83·1, 86·0) | 617 (15·3) | 15·5 (14·0, 16·9) |
| C | 3033 (84·3) | 84·1 (82·4, 85·8) | 567 (15·7) | 15·9 (14·2, 17·6) |
| ‘D’ | 554 (82·1) | 82·4 (79·0, 85·9) | 121 (17·9) | 17·6 (14·1, 21·0) |
| Unknown | 616 (85·8) | – | 102 (14·2) | – |
| IMD income category | ||||
| 1 (most affluent) | 2084 (86·5) | 86·3 (84·5, 88·0) | 324 (13·5) | 13·7 (12·0, 15·5) |
| 2 | 2114 (86·1) | 86·0 (84·2, 87·8) | 341 (13·9) | 14·0 (12·2, 15·8) |
| 3 | 2057 (84·9) | 85·1 (83·2, 87·0) | 365 (15·1) | 14·9 (13·0, 16·8) |
| 4 | 1650 (83·5) | 83·5 (81·7, 85·4) | 325 (16·5) | 16·5 (14·6, 18·3) |
| 5 (most deprived) | 1219 (82·0) | 82·1 (79·6, 84·6) | 267 (18·0) | 17·9 (15·4, 20·4) |
| Unknown | 179 (85·6) | – | 30 (14·4) | – |
| Cancer site | ||||
| Colon | 7062 (85·7) | 85·5 (84·3, 86·7) | 1176 (14·3) | 14·5 (13·3, 15·7) |
| Rectum | 2241 (82·5) | 82·2 (80·2, 84·3) | 476 (17·5) | 17·8 (15·7, 19·8) |
| Charlson co-morbidity score | ||||
| 0 | 7851 (85·0) | 84·7 (83·5, 86·0) | 1389 (15·0) | 15·3 (14·0, 16·5) |
| 1 | 968 (84·3) | 84·3 (82·0, 86·6) | 180 (15·7) | 15·7 (13·4, 18·0) |
| 2 | 316 (84·5) | 84·4 (80·2, 88·6) | 58 (15·5) | 15·6 (11·4, 19·8) |
| ≥ 3 | 168 (87·0) | 87·0 (82·1, 92·0) | 25 (13·0) | 13·0 (8·0, 17·9) |
Values in parentheses are *percentages and †95 per cent confidence intervals. IMD, Index of Multiple Deprivation.