Table 2.
Baseline characteristics of COPD patients who died
| Variables | Deceased COPD patients | Surviving COPD patients | P value |
|---|---|---|---|
| n | 33 | 85 | |
| Age | 74.4 (8.1) | 71.7 (7.1) | <0.1 |
| BMI | 28.0 (5.8) | 28.3 (3.3) | NS |
| Smoking status | |||
| Current smoker | 20 (60.6%) | 40 (47.1%) | NS |
| Ex-smoker | 13 (39.4%) | 45 (52.9%) | NS |
| Comorbidities | |||
| Hypertension | 29 (87.9%) | 79 (92.9%) | NS |
| Coronary Heart disease | 19 (57.5%) | 29 (42.4%) | <0.05 |
| Hyperlipidemia | 4 (12.1%) | 17 (20%) | NS |
| Arrythmia | 2 (6.1%) | 4 (4.7%) | NS |
| Diabetes mellitus | 4 (12.1%) | 14 (16.5%) | NS |
| Depression | 2 (6.1%) | 2 (2.4%) | NS |
| Other | 10 (30.3%) | 25 (29.4%) | NS |
| Cough | 30 (90.9%) | 61 (71.8%) | <0.05 |
| Sputum production | 30 (90.9%) | 59 (69.4%) | <0.05 |
| Wheezing | 20 (60.6%) | 47 (55.3%) | NS |
| Dyspnea | 33 (100%) | 81 (95.3%) | NS |
| MRC | 1 (1–1.5) | 1 (1–2) | NS |
| COPD stage NS | |||
| Stage I | 3 (9.1%) | 9 (10.6%) | NS |
| Stage II | 19 (57.6%) | 49 (57.6%) | NS |
| Stage III | 11 (33.3%) | 23 (27.1%) | NS |
| Stage IV | 0 (0%) | 4 (4.7%) | NS |
| FEV1 (%pred) | 60.1 (15.2) | 58.7 (15.8) | NS |
| FVC (%pred) | 71.0 (62.5–80.5) | 73.0 (57.0–83.0) | NS |
| FEV1/FVC | 64.9 (57.4–68.9) | 65.8 (53.9–69.0) | NS |
| PEF (%pred) | 54.9 (17.2) | 57.9 (18.2) | NS |
| FEF25–75 (%pred) | 35.5 (22.8–47.5) | 36.0 (24.3–46.80) | NS |
Abbreviations: BMI, body mass index; MRC, Medical Research Council; FEV1, forced expiratory volume in the first second; FVC, forced vital capacity; FEV1/FVC, FEV1 to FVC ratio; PEF, peak expiratory flow; FEF25–75, mid forced expiratory flow; %pred, percent predicted.