Table 1.
Case mix for admissions with haematological malignancy
| All admissions (n = 7,689) | |
|---|---|
| Age, mean (SD) | 57.5 (17.6) |
| Male, n (%) | 4,638 (60.3) |
| APACHE II Acute Physiology Score, mean (SD) | 17.1 (7.4) |
| APACHE II score, mean (SD) | 24.4 (7.9) |
| ICNARC physiology score, mean (SD) | 23.7 (11.4) |
| Number of organ system failures, mean (SD) | 1.5 (1.2) |
| Ventilated at any time during the first 24 hours in the ICU, n (%) | 4,244 (55.4) |
| Severe sepsis, n (%) | 4,177 (54.3) |
| Physiology | |
| Lowest platelet count (× 109/l), median (IQR) | 74 (31 to 162) |
| Lowest white blood cell count (× 109/l), median (IQR) | 6.7 (2.1 to 14.0) |
| Outcome | |
| Mortality, n (%) | |
| Unit | 3,312 (43.1) |
| Hospitala | 4,239 (59.2) |
| Activity | |
| Unit length of stay (days), median (IQR) | |
| Survivor | 2.5 (1.0 to 5.9) |
| Nonsurvivor | 2.2 (0.7 to 6.3) |
| All | 2.3 (0.9 to 6.1) |
| Hospital length of stay (days)a, median (IQR) | |
| Survivor | 27 (14 to 50) |
| Nonsurvivor | 14 (5 to 29) |
| All | 19 (9 to 38) |
| Transferred in from another ICU, n (%) | 166 (2.2) |
| Readmission within the same hospital stay, n (%) | 449 (5.8) |
| Hospital mortality by number of organ system failures, mortality (95% CI) | |
| 0 organ failures | 33.8 (31.4 to 36.2) |
| 1 organ failure | 50.3 (48.3 to 52.4) |
| 2 organ failures | 68.3 (66.1 to 70.4) |
| 3 organ failures | 83.9 (81.5 to 86.1) |
| 4 organ failures | 92.3 (89.3 to 94.6) |
| 5 organ failures | 98.8 (93.7 to 99.9) |
APACHE, Acute Physiology And Chronic Health Evaluation; APS, acute physiology score; CI, confidence interval; ICNARC, Intensive Care National Audit & Research Centre; ICU: intensive care unit; IQR: interquartile range; SD: standard deviation. aExcluding readmissions within the same hospital stay.