Characteristics of Emergency Department (ED) Encounters for Chronic Obstructive Pulmonary Disease Exacerbation Stratified by Admission Status, n=1,165
| Variable | Admitted to Hospital n=635 (54.5) | Not Admitted to Hospital n=530 (45.5) |
|---|---|---|
| Age, years, mean ± SD | 69 ± 12 | 65 ± 13 |
| Male | 245 (38.6) | 231 (43.6) |
| White race | 610 (96.1) | 485 (91.5) |
| Heart rate, bpm, mean ± SDa | 97 ± 20 | 91 ± 17 |
| Respiratory rate, breaths per min, mean ± SDa | 23 ± 6 | 22 ± 5 |
| Blood oxygen saturation, %, mean ± SDa | 92 ± 6 | 94 ± 4 |
| Documented primary care provider | 604 (95.1) | 454 (85.7) |
| Prior ED encounters for exacerbationb | ||
| 0 | 489 (77.0) | 368 (69.4) |
| 1 | 3 (0.5) | 2 (0.4) |
| 2 | 22 (3.5) | 35 (6.6) |
| ≥3 | 121 (19.1) | 125 (23.6) |
| Mean ± SD | 0.5 ± 1.5 | 0.6 ± 1.3 |
| Weekday arrival | 489 (77.0) | 371 (70.0) |
| Clinic or urgent care clinic open | 444 (69.9) | 340 (64.2) |
| Secondary diagnosis of depression | 131 (20.6) | 18 (3.4) |
| Secondary diagnosis of anxiety | 121 (19.1) | 28 (5.3) |