From: Particulate air pollution and survival in a COPD cohort
N* | % | |
---|---|---|
Events | 1039 | 100 |
Deaths | 593 | 57.1 |
Gender | ||
Male | 494 | 47.5 |
Female | 546 | 52.5 |
Race | ||
White | 860 | 82.8 |
Black | 122 | 11.7 |
Other | 57 | 5.5 |
Age** | 76.4 (66.2–89.6) | |
N days in coronary care** | 0.35 (0–2.3) | |
N days in intensive care** | 0.72 (0–4.2) | |
Secondary or previous diagnoses: | ||
CHF | 205 | 19.7 |
Diabetes | 133 | 12.8 |
Hypertension | 287 | 27.6 |
Previous admissions: | ||
Atrial fibrillation | 67 | 6.4 |
MI | 38 | 3.7 |
COPD type | ||
Chronic bronchitis | 179 | 13.9 |
Emphysema | 108 | 8.4 |
Chronic airway obstructions | 706 | 55.2 |