Table 1 Characteristics of the subjects
From: Validity of a portable spirometer in the communities of China
Characteristics | Patients (N = 202) |
|---|---|
Age- year | 58.24 ± 9.72 |
Sex-no. (%) | Â |
 Male sex | 133 (65.84) |
 Female sex | 69 (34.16) |
Body-mass index | 23.47 ± 3.26 |
Smoking status | Â |
 Never smoked | 98 (48.52) |
 Current smoking | 78 (38.61) |
 Former smoking | 26 (12.87) |
mMRC dyspnea scale score | Â |
Distribution-no. (%) | Â |
  < 2 | 198 (98.02) |
  ≥ 2 | 4 (1.98) |
CAT score | Â |
Distribution-no. (%) | Â |
  < 10 | 188 (93.01) |
  ≥ 10 | 14 (6.99) |
Spirometry-defined COPD | 55 (27.2) |