Table 1 Basic information of per-protocol participants (N = 126)
From: Reliability and usability of a portable spirometer compared to a laboratory spirometer
Characteristic | Mean ± SD or n (%) |
|---|---|
Age (years) | 40.3 ± 20.5 |
 < 20 | 26 (20.6) |
 20 − 40 | 34 (27.0) |
 40 − 60 | 39 (31.0) |
 ≥ 60 | 27 (21.4) |
Gender | |
 Male | 68 (54.0) |
 Female | 58 (46.0) |
Height (cm) | 157.8 ± 13.0 |
Weight (kg) | 57.6 ± 15.5 |
BMI (kg/m2) | 22.7 ± 4.4 |
 < 18.5 | 21 (16.7) |
 18.5–25 | 71 (56.3) |
 ≥ 25 | 34 (27.0) |
Diagnosis | |
 COPD | 24 (19.0) |
 Asthma | 29 (23.0) |
 Other CRDs | 10 (7.9) |
 No specific lung diseases | 63 (50.0) |