Table 1 –
Patient characteristics according to hospital volume (by patient)
| Low-volume hospital patients N=1,435 (32%) |
Medium-volume hospital patients N=1,531 (34%) |
High-volume hospital patients N=1,532 (34%) |
P value | |
|---|---|---|---|---|
| Female | 330 (23%) | 325 (21%) | 333 (22%) | 0.547 |
| Age | ||||
| 65–69 | 500 (35%) | 558 (36%) | 569 (37%) | 0.015 |
| 70–79 | 742 (52%) | 819 (54%) | 825 (54%) | |
| ≥80 | 193 (13%) | 154 (10%) | 138 (9%) | |
| Non-white | 119 (8%) | 87 (6%) | 54 (4%) | <0.001 |
| Non-elective admission | 272 (19%) | 140 (9%) | 60 (4%) | <0.001 |
| Charlson score ≥ 3 | 854 (60%) | 814 (53%) | 816 (53%) | 0.009 |