Table 2.
Unexpected critical care admission after colorectal cancer surgery
| Potential risk factors for unexpected critical care admission | ||||
|---|---|---|---|---|
| Unexpected CC admission (%) |
Univariate odds ratio∗ (95% CI) | |||
| Risk factor present | Risk factor absent | |||
| Male sex | 7.7 | 4.8 | 1.66 (1.05–2.65) | |
| Age >80 yr | 7.4 | 6.4 | 1.18 (0.69–2.01) | |
| Ischaemic heart disease | 9.5 | 6.1 | 1.63 (0.95–2.80) | |
| Heart failure | 20.8 | 6.3 | 3.92 (1.43–10.8) | |
| Cerebrovascular disease | 11.5 | 6.2 | 1.96 (0.94–4.06) | |
| Diabetes mellitus (any) | 9.8 | 6.1 | 1.66 (0.94–2.93) | |
| Renal insufficiency | 18.0 | 6.1 | 3.38 (1.58–7.18) | |
| COPD | 11.6 | 6.2 | 1.99 (0.99–3.99) | |
| Asthma | 4.9 | 6.7 | 0.72 (0.26–2.01) | |
| Other lung disease | 3.8 | 6.7 | 0.55 (0.13–2.30) | |
| Open surgery | 7.1 | 4.5 | 1.64 (0.87–3.15) | |
| Evidence of cancer spread | 6.0 | 6.9 | 0.86 (0.55–1.34) | |
| VE/VCO2 > 39 | 7.3 | 6.4 | 1.16 (0.68–1.99) | |
| Potential risk factors for 90-day mortality after unexpected critical care admission | ||||
| Mortality after unexpected CC admission (%) | Univariate odds ratio∗(95% CI) | |||
| Risk factor present | Risk factor absent | |||
| Male sex | 19.0 | 14.8 | 1.35 (0.39–4.65) | |
| Age >80 yr | 27.8 | 15.3 | 2.13 (0.63–7.19) | |
| Ischaemic heart disease | 33.3 | 13.9 | 3.10 (0.95–10.2) | |
| Heart failure | 20.0 | 17.6 | 1.17 (0.12–11.2) | |
| Cerebrovascular disease | 11.1 | 18.5 | 0.55 (0.06–4.74) | |
| Diabetes mellitus (any) | 18.8 | 17.6 | 1.08 (0.27–4.35) | |
| Renal insufficiency | 33.3 | 16.0 | 2.61 (0.58–11.8) | |
| COPD | 40.0 | 15.0 | 3.78 (0.93–15.41) | |
| Asthma | 0.0 | 18.6 | 0.81 (0.74–0.90) | |
| Other lung disease | 0.0 | 18.2 | 0.81 (0.74–0.90) | |
| Open surgery | 16.9 | 23.1 | 0.68 (0.14–3.61) | |
| Evidence of cancer spread | 9.7 | 22.0 | 0.38 (0.10–1.45) | |
| VE/VCO2 > 39 | 38.9 | 12.5 | 4.45 (1.37–14.5) | |
∗
Binary logistic regression is not possible because none of the cells have more than the required minimum 10 events. CC, critical care; CI, confidence interval; COPD, chronic obstructive pulmonary disease; VE/VCO2, ratio of minute ventilation (L min–1) to carbon dioxide excretion (mL kg–1 min–1)