Multivariate OR (95% CI) | p-value | |
Age | 1.04 (1.00–1.07) | 0.03 |
Smoking | 0.38 (0.10–1.38) | 0.14 |
Female sex | 0.60 (0.21–1.74) | 0.35 |
FEV1 % pred | 1.04 (1.01–1.07) | 0.02 |
Obesity# | 0.57 (0.20–1.62) | 0.29 |
ECRHSQ score | 1.44 (0.50–4.13) | 0.50 |
FEV1: forced expiratory volume in 1 s; % pred: % predicted; ECRHSQ: European Community Respiratory Health Study Questionnaire, maximum score 5. #: body mass index of ≥30 kg·m−2.