Table 2. Unadjusted Mortality by COVID-19 ICU Strain Metrics.
| ICU strain at patient level | COVID-19 mortality through 30 d postdischarge, No./total No. (%) | ||
|---|---|---|---|
| Overall | General ward only | ICU | |
| COVID-19 ICU loada | |||
| ≤25% | 950/6567 (14.5) | 313/4303 (7.3) | 637/2264 (28.1) |
| >25% to 50% | 259/1198 (21.6) | 75/662 (11.3) | 184/536 (34.3) |
| >50% to 75% | 96/441 (21.8) | 22/233 (9.4) | 74/208 (35.6) |
| >75% to 100% | 79/232 (34.0) | 28/132 (21.2) | 51/100 (51.0) |
| >100% | 26/78 (33.3) | 3/43 (7.0) | 23/35 (65.7) |
| COVID-19 ICU demandb | |||
| ≤25% | 281/2488 (11.3) | 116/1815 (6.4) | 165/673 (24.5) |
| >25% to 50% | 429/2696 (15.9) | 145/1683 (8.6) | 284/1013 (28.0) |
| >50% to 75% | 443/2099 (21.1) | 106/1107 (9.6) | 337/992 (34.0) |
| >75% | 257/1233 (20.8) | 74/768 (9.6) | 183/465 (39.4) |
Abbreviations: COVID-19, coronavirus disease 2019; ICU, intensive care unit.
a
Calculated as No. patients with COVID-19 in the ICU during stay divided by No. of ICU beds.
b
Calculated as mean No. of patients with COVID-19 in the ICU during stay divided by maximum No. of patients with COVID-19 in the ICU.