Table 3. Multivariate logistic regression for acute hospital mortality. The analysis includes year of critical care unit (CCU) admission and is adjusted for age, gender, cardiopulmonary resuscitation (CPR) prior to admission, location prior to admission, alcohol related cirrhosis, index of multiple deprivation (IMD) quintile and Intensive Care National Audit and Research Centre (ICNARC) score, with random effects for unit* [N=28,449].
| Variable | Odds ratio (95% confidence interval) | p value |
|---|---|---|
| Age | 1.02 (1.02,1.03) | <0.001 |
| Gender (male) | 1.01 (0.95,1.07) | 0.71 |
| CPR prior to admission | 1.87 (1.61,2.18) | <0.001 |
| Location prior to admission | ||
| A&E/Other/Not in hospital | 1.00 (-) | - |
| ICU/HDU | 1.26 (1.12,1.41) | <0.001 |
| Theatre (elective) | 0.38 (0.32,0.44) | <0.001 |
| Theatre (emergency) | 0.81 (0.73,0.89) | <0.001 |
| Ward | 1.64 (1.52,1.77) | <0.001 |
| Alcohol related cirrhosis | 1.51 (1.42,1.61) | <0.001 |
| IMD quintile | ||
| 1 (least deprived) | 1.00 (-) | - |
| 2 | 1.02 (0.91,1.14) | 0.70 |
| 3 | 1.06 (0.95,1.18) | 0.30 |
| 4 | 1.08 (0.97,1.20) | 0.16 |
| 5 (most deprived) | 1.07 (0.97,1.19) | 0.16 |
| ICNARC score | 1.13 (1.13,1.14) | <0.001 |
| Year of ICU admission | 0.95 (0.94,0.96) | <0.001 |
*
rho=0.02 (0.02,0.03)