Table 5.
Characteristics of ICU admissions due to cardiac arrest and ICU readmission service*
| Outcome measure | First year (baseline), mean (SD) | Second year (follow-up), mean (SD) | P value |
| Cardiac arrests admitted from ward to ICU per year | 5.0 (4.3) | 4.2 (3.9) | 0.33 |
| Rate of admitted ward cardiac arrests (events per 1,000 ICU admissions) | 9.0 (6.1) | 7.1 (7.1) | 0.30 |
| ICU readmissions per year following ICU discharge | 23.2 (22.1) | 28.2 (28.1) | 0.08 |
| ICU readmission rate (events per 1,000 ICU admission) | 36.1 (19.2) | 37.2 (19.1) | 0.99 |
| Outcomes | Percentage survival in first year | Percentage survival in second year | P value |
| Cardiac arrests | 29.4 (28.3) | 38.8 (24.9) | 0.35 |
| ICU readmissions | 87.3 (13.9) | 88.4 (8.1) | 0.77 |
ICU, intensive care unit; MET, Medical Emergency Team; SD, standard deviation.
*Data from the baseline 12 months and follow-up 12 months in 16 hospitals that had not introduced an MET service