Table 1.
Demographic and clinical characteristics of COPD patients (n=245)
| Characteristic | Results |
|---|---|
| Age, years (mean [SD]) | 69.5 (8.8) |
| Gender, male (n [%]) | 231 (94.3) |
| BMI, kg/m2 (mean [SD]) | 28.9 (6) |
| Occupational exposure (n [%]) | 29 (11.8) |
| Working status (n [%]) | |
| Retired | 193 (78.8) |
| Working | 39 (15.9) |
| Unemployed | 13 (5.3) |
| Smoking habit (n [%]) | |
| Current smoker | 110 (44.9) |
| Ex-smoker | 128 (52.2) |
| Nonsmoker | 7 (2.9) |
| Pack-years (mean [SD]) | 79.6 (37.2) |
| Years with COPD (mean [SD]) | 6.7 (5.6) |
| LTOT (n [%]) | 54 (22) |
| NIV (n [%]) | 42 (17.1) |
| FEV1% (mean [SD]) | 55.2 (19.9) |
| Respiratory symptoms (n [%]) | |
| Cough | 144 (58.8) |
| Sputum | 172 (70.2) |
| Wheezing | 140 (57.1) |
| Dyspnea | 214 (87.3) |
| mMRC ≥2 (n [%]) | 125 (51) |
| CAT ≥10 (n [%]) | 122 (49.8) |
| Frequent comorbidities (n [%]) | |
| Hypertension | 121 (49.4) |
| Coronary heart disease | 47 (19.2) |
| Chronic heart failure | 26 (10.6) |
| Diabetes | 47 (19.2) |
| Hyperlipidemia | 48 (19.6) |
| Prostate diseases | 35 (14.3) |
| Stages (GOLD) (n [%]) | |
| Stage I | 27 (11) |
| Stage II | 118 (48.2) |
| Stage III | 71 (29) |
| Stage IV | 29 (11.8) |
| Groups (GOLD) (n [%]) | |
| A | 57 (23.3) |
| B | 38 (15.5) |
| C | 56 (22.9) |
| D | 94 (38.4) |
Abbreviations: COPD, chronic obstructive pulmonary disease; SD, standard deviation; BMI, body mass index; LTOT, long-term oxygen therapy; NIV, noninvasive ventilation; FEV1, forced expiratory volume in 1 second; mMRC, modified Medical Research Council dyspnea scale; CAT, COPD Assessment Test; GOLD, Global Initiative for Chronic Obstructive Lung Disease.