Female | Male | |||||||||||||
Subjects n | Age years | Height cm | BMI kg·m−2 | z-FEV1 | z-FVC | z-FEV1/FVC | Subjects n | Age years | Height cm | BMI kg·m−2 | z-FEV1 | z-FVC | z-FEV1/FVC | |
Age 20–95 years | ||||||||||||||
A: parent population | 8048 | 56.9±15.4 | 163.7±6.5 | 26.6±4.7 | −0.19±1.13 | 0.04±0.99 | −0.46±0.92 | 6572 | 56.7±15.1 | 177.0±6.9 | 27.1±3.8 | −0.29±1.11 | −0.06±0.99 | −0.42±1.03 |
B: subjects without cardinal symptoms | 3357 | 54.9±14.9 | 164.3±6.2 | 25.7±4.2 | 0.06±1.02 | 0.22±0.94 | −0.33±0.82 | 2907 | 55.3±14.6 | 177.5±6.7 | 26.7±3.6 | −0.02±0.99 | 0.11±0.93 | −0.23±0.88 |
C: never-smokers without cardinal symptoms | 1570 | 55.3±16.3 | 163.8±6.3 | 25.8±4.4 | 0.15±0.98 | 0.23±0.92 | −0.21±0.79 | 1190 | 52.0±15.1 | 178.4±6.6 | 26.5±3.3 | 0.06±0.93 | 0.10±0.90 | −0.09±0.82 |
D: never-smokers without respiratory symptoms | 1403 | 55.6±16.3 | 163.6±6.3 | 25.8±4.3 | 0.17±0.98 | 0.25±0.91 | −0.20±0.78 | 1035 | 52.3±15.3 | 178.2±6.5 | 26.5±3.3 | 0.08±0.92 | 0.12±0.87 | −0.09±0.82 |
Age 12–19 years | ||||||||||||||
A: parent population | 7711 | 16.1±1.8 | 165.4±6.3 | 0.09±1.02 | 0.05±0.98 | −0.29±0.85 | 7904 | 16.0±1.8 | 174.4±9.5 | −0.01±1.05 | 0.05±1.06 | −0.11±0.96 | ||
B: subjects without cardinal symptoms | 5767 | 16.0±1.8 | 165.5±6.3 | −0.08±1.02 | 0.03±0.98 | −0.25±0.85 | 5850 | 16.0±1.7 | 174.6±9.4 | 0.02±1.04 | 0.03±1.06 | −0.03±0.94 | ||
C: never-smokers without cardinal symptoms | 5032 | 15.9±1.8 | 165.4±6.3 | −0.08±1.01 | 0.03±0.98 | −0.23±0.84 | 5236 | 15.9±1.7 | 174.3±9.6 | 0.02±1.05 | 0.02±1.06 | −0.02±0.94 | ||
D: never-smokers without respiratory symptoms | 4166 | 15.9±1.8 | 165.3±6.4 | −0.07±1.06 | 0.03±1.00 | −0.21±0.83 | 4559 | 15.9±1.7 | 174.1±9.6 | 0.02±1.05 | −0.01±1.06 | −0.02±0.94 |
Data are presented as mean±sd. GLI: Global Lung Function Initiative; FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity; HUNT: Nord-Trøndelag Health Study; BMI: body mass index. Categories A–D as defined in [23] (A: parent population randomly selected persons; B: persons without obstructive lung disease, Modified Medical Research Council Dyspnoea Scale 0, no wheezing and no chronic cough; C: never-smokers; D: never-smokers without any respiratory symptoms).