Table 2.
Baseline characteristics of the study hospitals
| Hospital characteristics, n (%) | All patients (N = 12,108) |
Hypoxia/poor O2 exchange (n = 8,904) |
Normoxia (n = 1,919) |
Hyperoxia (n = 1,285) |
|---|---|---|---|---|
| Hospital sizea | ||||
| Small to medium (≤300 beds) | 2,475 (20) | 1,813 (20) | 361 (19) | 301 (23) |
| Large (301 to 500 beds) | 5,277 (44) | 3,906 (44) | 843 (44) | 528 (41) |
| Extra large (>500 beds) | 4,356 (36) | 3,185 (36) | 715 (37) | 456 (35) |
| Hospital type and location | ||||
| Metropolitan community | 2,670 (22) | 1,988 (22) | 437 (23) | 245 (19) |
| Private | 787 (6) | 573 (6) | 89 (5) | 125 (10) |
| Rural | 1,279 (11) | 939 (11) | 205 (11) | 135 (11) |
| Tertiary academic | 7,372 (61) | 5,404 (61) | 1,188 (62) | 780 (61) |
aDefined according to Halpern et al. [30].