Table 1. Patient characteristics.
| Variable | n (%) |
|---|---|
| Age in years | |
| Median (IQR) | 64 (54-73) |
| Gender | |
| Female | 67 (62.6) |
| Male | 40 (37.4) |
| Education | |
| No formal education | 60 (56) |
| Primary level | 23 (21.5) |
| High school | 12(11.2) |
| Higher education | 12(11.2) |
| Triage category | |
| Red | 14(13.1) |
| Orange | 50 (46.7) |
| Yellow | 43 (40.2) |
| Green | 0 (0) |
| Mode of arrival | |
| Ambulance | 44 (41) |
| Hired vehicle | 43 (40.2) |
| Private vehicle | 20 (18.7) |
| Smoking status | |
| Non-smoker | 41 (38.3) |
| Active smoker | 21 (19.6) |
| Past smoker | 45 (42.1) |
| Comorbidities | |
| Chronic Obstructive | 68 (63.6) |
| Pulmonary Disease | 9 (8.4) |
| Diabetes | 8 (7.5) |
| Cardiac | 7 (6.5) |
| Hypertension | 4 (3.7) |
| Asthma | 3 (2.8) |
| Alcoholism | 9 (8.4) |
| Others | 21 (19.6) |
| None | |
| Duration of dyspnea in days | |
| Median (IQR) | 3 (2-6) |
| Previous visit to ED | 55 (51.4) |
| Use of domiciliary oxygen | 17 (15.9) |