TABLE 3.
Outcomes
| Total Patient Cohort | < 80 Yr | ≥ 80 Yr | |
|---|---|---|---|
| Outcomes | n = 1,568,959 | n = 1,336,377 | n = 232,582 |
| Primary outcome—hospital mortality | |||
| Hospital mortality, n (%) | 140,032 (8.9%) | 104,295 (7.8%) | 35,737 (15.4%) |
| Secondary outcomes | |||
| ICU mortality, n (%) | 89,487 (5.7%) | 69,824 (5.2%) | 19,663 (8.5%) |
| Resource utilization | |||
| ICU LOS, mean (sd), d | 3.1 (5.6) | 3.2 (5.8) | 2.9 (4.6) |
| ICU LOS, median (IQR), d | 1.8 (0.9–3.3) | 1.7 (0.9–3.2) | 1.8 (0.9–3.5) |
| Sum total ICU days (% of total) | 4,921,773 (100%) | 4,239,733 (86.1%) | 682,040 (13.9%) |
| Hospital LOS, mean (sd), d | 15.1 (70.5) | 14.8 (71.9) | 16.4 (61.8) |
| Hospital LOS, median (IQR) | 8.4 (4.7–15.4) | 8.0 (4.4–14.8) | 10.5 (6.2–18.3) |
| Sum total hospital days (% of total) | 23,313,261 (100%) | 19,552,478 (83.9%) | 3,760,775 (16.1%) |
| ICU readmissions, n (%) | 69,330 (4.4%) | 58,494 (4.4%) | 10,836 (4.7%) |
| Discharge destination (survivors only)a | |||
| Home | 1,143,708 (80.0%) | 1,015,323 (82.4%) | 128,385 (65.2%) |
| Nursing home/chronic care/rehabilitation | 135,482 (9.5%) | 95,907 (7.8%) | 39,575 (20.1%) |
| Discharge to another acute hospital | 148,054 (10.4%) | 119,321 (9.7%) | 28,733 (14.6%) |
| Other/unknown | 1,683 (0.1%) | 1,531 (0.1%) | 152 (0.1%) |
IQR = interquartile range, LOS = length of stay.
a
Discharge destination is reported as a proportion of 1,428,927 patients who survived to leave hospital alive (1,232,082 < 80 yr old and 196,845 ≥ 80 yr old).
All p values for comparisons less than 0.001.