Table 2.
Patient characteristics of subgroups
| Colorectal surgery (n = 651) | HPB surgery (n = 257) | |||||
|---|---|---|---|---|---|---|
| Controls (n = 507) | CMVS (n = 144) | P | Control (n = 207) | CMVS (n = 50) | P | |
| Sex | 0.502 | 0.343 | ||||
| Male | 248 (48.9) | 75 (52.1) | 113 (54.6) | 31 (62.0) | ||
| Female | 259 (51.1) | 69 (47.9) | 94 (45.4) | 29 (58.0) | ||
| Age, mean (s.d.) | 67.0 (13.5) | 68.6 (12.2) | 0.201 | 66.3 (12.0) | 66.4 (11.0) | 0.962 |
| Length, mean (s.d.) | 172.7 (9.8) | 174.0 (10.3) | 0.188 | 173.0 (15.3) | 174.5 (9.8) | 0.522 |
| Weight, mean (s.d.) | 79.1 (16.1) | 80.9 (16.0) | 0.238 | 78.6 (15.6) | 79.4 (19.5) | 0.828 |
| BMI, mean (s.d.) | 26.4 (4.8) | 26.6 (4.4) | 0.553 | 26.0 (4.4) | 26.0 (5.6) | 0.948 |
| ASA classification | 0.008* | 0.449 | ||||
| 1–2 | 393 (77.5) | 96 (66.7) | 136 (65.7) | 30 (60.0) | ||
| 3–4 | 114 (22.5) | 48 (33.3) | 71 (34.4) | 20 (40.0) | ||
| Type | 0.011* | 0.019* | ||||
| Colon/liver | 366 (72.2) | 119 (82.6) | 100 (51.7) | 15 (70.0) | ||
| Rectal/pancreas | 141 (27.8) | 25 (17.4) | 107 (48.3) | 35 (30.0) | ||
| Procedure | 0.288 | 0.883 | ||||
| Laparoscopic | 441 (87.0) | 130 (90.3) | 81 (39.1) | 19 (38.0) | ||
| Open | 66 (13.0) | 14 (9.7) | 126 (60.9) | 31 (62.0) | ||
| Malignancy | 0.563 | 0.058 | ||||
| No tumour | 103 (20.3) | 26 (18.1) | 23 (11.1) | 9 (18.0) | ||
| Solid tumour | 382 (75.3) | 109 (75.7) | 98 (47.3) | 29 (58.0) | ||
| Metastasis | 22 (4.3) | 9 (6.9) | 86 (41.5) | 12 (24.0) | ||
| CCI, mean (s.d.) | 5.4 (2.6) | 5.1 (2.3) | 0.225 | 6.8 (3.0) | 5.5 (2.9) | 0.005* |
| Preoperative Hb, mean (s.d.) | 7.9 (1.1) | 7.7 (1.2) | 0.038* | 8.0 (1.1) | 8.0 (1.1) | 0.967 |
| Smoking status | 0.197 | 0.002* | ||||
| No | 202 (39.8) | 64 (44.4) | 79 (38.2) | 11 (22.0) | ||
| Prior | 244 (48.1) | 70 (48.6) | 109 (52.7) | 26 (52.0) | ||
| Yes | 61 (12.0) | 10 (7.0) | 19 (9.2) | 13 (26.0) | ||
| Alcohol use | 276 (54.4) | 70 (486) | 0.216 | 88 (42.5) | 19 (38.0) | 0.561 |
| Nutritional status | 0.239 | 0.581 | ||||
| No malnourishment | 439 (86.6) | 130 (90.3) | 145 (70.0) | 37 (74.0) | ||
| Malnourishment | 68 (13.4) | 14 (9.7) | 62 (30.0) | 13 (26.0) | ||
Values are n (%) unless otherwise stated. HPB, hepatopancreatobiliary; CMVS, continuous vital signs monitoring intervention; CCI, Charlson Comorbidity Index; Hb, haemoglobin. *Statistically significant.