Demographic and spirometric data of study patients
| Exacerbated COPD (n=85) | Stable COPD (n=42) | p value | |
|---|---|---|---|
| Data are median (range) or absolute numbers and percentages as indicated. Probability according to Mann-Whitney U tests. p<0.05 is considered to be statistically significant. | |||
| FEV1a = forced expiratory volume in 1 second on admission; FEV1b = baseline forced expiratory volume in 1 second for control group and value before discharge after recovery from exacerbation of COPD for the AE-COPD group. | |||
| Median (range) age (years) | 70 (43–83) | 67.5 (45–86) | 0.44 |
| Sex (F:M) | 17F:68M | 4F:38M | 0.22 |
| Median (range) body mass index | 24.7 (16.6–39.5) | 25.8 (17.8–35) | 0.11 |
| Smoking habit | |||
| Never | 11/85 (12.9%) | 7/42 (16.7%) | 0.77 |
| Ex | 42/85 (49.4%) | 23/42 (54.8%) | 0.63 |
| Current | 32/85 (37.7%) | 12/42 (28.6%) | |
| Median (range) pack years | 35 (1–100) | 37.5 (1–100) | 0.49 |
| Median (range) history of COPD (years) | 13 (0–40) | 10 (1–50) | 0.42 |
| Median (range) general physical condition (WHO) | 1 (0–3) | 2 (0–3) | 0.67 |
| Median (range) FEV1a (l) | 1.04 (0.44–2.48) | 1.44 (0.64–2.6) | <0.01 |
| Median (range) FEV1a % of predicted | 37.9 (16.8–79.5) | 55.5 (18.1–74.7) | <0.01 |
| Median (range) FEV1b (l) | 1.16 (0.48–2.84) | 1.44 (0.64–2.6) | 0.07 |
| Median (range) FEV1b (%) | 49 (15.3–79.9) | 55 (18.1–74.7) | 0.31 |