Table 2.
Patient demographics
| Variables | Pre-implementation N (%)a |
Post-implementation N (%)a |
Total N (%)a |
p value |
|---|---|---|---|---|
| Age | .283b | |||
| Average (SD) | 67 (13) | 66 (11) | 66 (12) | |
| Range | 30–96 | 30–90 | 28–89 | |
| Sex | .545c | |||
| Female | 81 (47.1) | 138 (44.2) | 219 (45.2) | |
| Male | 91 (25.9) | 174 (55.8) | 265 (54.8) | |
| BMI | .989b | |||
| Average (SD) | 26.3 (4.2) | 26.3 (4.5) | 26.3 (4.4) | |
| Range | 16.5–45.3 | 16.2–50.2 | 16.2–50.2 | |
| ASA | .246c | |||
| ASA 1 or 2 | 130 (75.6) | 251 (80.4) | 381 (78.7) | |
| ASA 3 or 4 | 42 (24.4) | 61 (19.6) | 103 (21.3) | |
| Type of operation | .006c | |||
| Right hemicolectomy | 49 (28.5) | 109 (34.9) | 158 (32.6) | |
| Left hemicolectomy | 12 (7.0) | 24 (7.7) | 36 (7.4) | |
| Sigmoidectomy/LAR | 87 (50.6) | 139 (44.6) | 226 (46.7) | |
| Colectomy | 2 (1.2) | 18 (5.8) | 20 (4.1) | |
| APR | 12 (7.0) | 19 (6.1) | 31 (6.4) | |
| Other | 10 (5.8) | 3 (1.0) | 13 (2.7) | |
| Approach | <.001c | |||
| Open | 41 (23.8) | 27 (8.7) | 68 (14.0) | |
| Scopic | 131 (76.2) | 285 (91.3) | 416 (86.0) | |
| Stoma | .370c | |||
| No stoma | 114 (66.3) | 230 (73.7) | 344 (71.1) | |
| Loop ileostomy | 31 (18.1) | 51 (16.4) | 82 (16.9) | |
| End colostomy | 27 (16.7) | 31 (10.0) | 58 (12.0) | |
| Urgency | .231c | |||
| Elective | 150 (87.2) | 283 (90.7) | 433 (89.5) | |
| Emergency | 22 (14.7) | 29 (9.3) | 51 (10.5) | |
| Dukes classification | .735c | |||
| Dukes’ A | 0 (0) | 3 (1.0) | 127 (26.2) | |
| Dukes’ B | 42 (24.4) | 82 (26.3) | 166 (34.3) | |
| Dukes’ C | 54 (31.4) | 102 (32.7) | 142 (29.3) | |
| Dukes’ D | 3 (1.7) | 7 (2.2) | 45 (9.3) | |
| Resection status | .002c | |||
| R0 | 155 (90.1) | 308 (98.7) | 463 (96.9) | |
| R1 | 10 (5.8) | 2 (0.6) | 12 (2.5) | |
| R2 | 1 (0.6) | 2 (0.6) | 3 (0.6) | |
| Total | 172 (100) | 312 (100) | 484 (100) |
aUnless otherwise stated in the first column
bMann-Whitney U test
cChi-square test