| Variable | No. hospital admissions | No. visits | % (95% CI) | Adjusted* OR (95% CI) |
|---|---|---|---|---|
| HIV status | ||||
| Non-HIV | 3703 | 38 670 | 9.6 (9.3-9.9) | 1.00 |
| HIV | 1513 | 9670 | 15.6 (14.9-16.4) | 1.55 (1.43-1.69) |
| Income quintile | ||||
| 5 (highest) | 746 | 7055 | 10.6 (9.9-11.3) | 1.00 |
| 4 | 728 | 7310 | 10.0 (9.3-10.6) | 0.96 (0.85-1.08) |
| 3 | 891 | 8455 | 10.5 (9.9-11.2) | 0.98 (0.87-1.10) |
| 2 | 1115 | 10 530 | 10.6 (10.0-11.2) | 0.98 (0.88-1.09) |
| 1 (lowest) | 1681 | 14 506 | 11.6 (11.1-12.1) | 1.00 (0.90-1.11) |
| Residence | ||||
| Urban | 4906 | 44 352 | 11.1 (10.8-11.4) | 1.00 |
| Rural | 306 | 3926 | 7.8 (7.0-8.6) | 1.13 (0.97-1.32) |
| Aggregated diagnosis groups | ||||
| 0-5 | 2717 | 30 728 | 8.8 (8.5-9.2) | 1.00 |
| 6-9 | 1523 | 11 901 | 12.8 (12.2-13.4) | 1.31 (1.22-1.41) |
| ≥ 10 | 976 | 5711 | 17.1 (16.1-18.1) | 1.69 (1.53-1.87) |
| CTAS score | ||||
| Nonurgent | 23 | 2326 | 1.0 (0.6-1.4) | 1.00 |
| Less urgent | 260 | 15 153 | 1.7 (1.5-1.9) | 1.84 (1.25-2.70) |
| Urgent | 2329 | 21 222 | 11.0 (10.6-11.4) | 12.08 (8.31-17.57) |
| Emergent | 2396 | 9195 | 26.1 (25.2-27.0) | 34.38 (23.60-50.09) |
| Resuscitation | 199 | 328 | 60.7 (55.4-66.0) | 156.73 (101.34-236.9) |
| Emergency department volume | ||||
| Low | 175 | 2316 | 7.6 (6.5-8.6) | 1.00 |
| Medium | 753 | 8656 | 8.7 (8.1-9.3) | 0.63 (0.52-0.77) |
| High | 4288 | 37 368 | 11.5 (11.2-11.8) | 0.61 (0.50-0.74) |
| Teaching hospital | ||||
| No | 3112 | 31 914 | 9.8 (9.4-10.1) | 1.00 |
| Yes | 2104 | 16 426 | 12.8 (12.3-13.3) | 1.12 (1.04-1.20) |
Note: CI = confidence interval, CTAS = Canadian Triage and Acuity Scale, OR = odds ratio.
*Adjusted for HIV status, neighborhood income quintile, urban versus rural residence, number of primary care visits in the past year and comorbidity burden in the past year, CTAS score, emergency department volume and teaching versus nonteaching hospital.