Table 1.
Demographic and clinical characteristics of COPD patients
| Characteristics | n=103 | |
|---|---|---|
| Age (years) | 71.2±9.2 | |
| Male sex, n (%) | 66 (64.1) | |
| Body mass index (kg/m2) | 20.7±3.9 | |
| Education level | ||
| Lower education (≤6 years) | 85 (82.5) | |
| Higher education (>6 years) | 18 (17.5) | |
| Percent predicted FEV1 | 51.9±22.5 | |
| Ratio of FEV1/FVC (%) | 54.1±12.2 | |
| GOLD | Classification | Stagea |
| A 28 (27.2) | I 9 (8.8) | |
| B 20 (19.4) | II 40 (39.2) | |
| C 17 (16.5) | III 39 (38.2) | |
| D 38 (36.9) | IV 14 (13.7) | |
| mMRC score | 2.0±1.1 | |
| CAT score | 10.6±6.7 | |
| Frequent AEs in the previous year (≥2 times per year) | 23 (22.3) | |
| AEs in the previous year (n) | 1.0±1.9 | |
| Treatment by a pulmonologist in previous 2 years | 57 (55.3) | |
| Multiple devices (≥2 devices) | 72 (69.9) | |
Note: Data are shown as the n (%) or as the mean ± standard deviation,
a
n=102.
Abbreviations: COPD, chronic obstructive pulmonary disease; FEV1, forced expiratory volume in 1 second; FVC, forced vital capacity; mMRC, modified Medical Research Council; CAT, COPD Assessment Test; GOLD, Global Initiative for Chronic Obstructive Lung Disease; AE, acute exacerbation.