Characteristics of the study population
| Males | Females | |
| Group A: Caucasians aged 10–80 years | ||
| Subjects | 5334 | 6098 |
| Height cm | 177.14±7.46 (147–211) | 162.92±6.85 (96–187) |
| Weight kg | 93.34±22.1 (52.3–227.3) | 82.1±23.83 (49.1–128.2) |
| Age years | 54.6±15.9 (11–80) | 54.69±15.4 (10–80) |
| Age categories years | ||
| 10–19 | 104 (2) | 93 (1.5) |
| 20–29 | 408 (7.65) | 422 (6.9) |
| 30–39 | 550 (10.3) | 591 (9.7) |
| 40–49 | 655 (12.3) | 904 (14.8) |
| 50–59 | 1225 (22.96) | 1429 (23.4) |
| 60–69 | 1376 (25.8) | 1535 (25.2) |
| 70–80 | 1016 (19.1) | 1124 (18.4) |
| FEV1 pre-bronchodilator L | 2.89±1.07 (0.34–6.48) | 2.14±0.76 (0.20–5.52) |
| FVC pre-bronchodilator L | 4.23±1.16 (0.95–8.96) | 2.95±0.83 (0.24–6.48) |
| FEV1/FVC pre-bronchodilator % | 67.48±14.3 (15.76–98.21) | 80.14±10.28 (22.1–98.8) |
| Group B: Caucasians aged 81–95 years | ||
| Subjects | 366 | 428 |
| Height cm | 172.7±6.43 (153–195) | 158.3±6.27 (141–178) |
| Weight kg | 83.1±13.7 (44.5–130.9) | 67.6±14.37 (46.2–117.7) |
| Age years | 84.37±2.95 (81–95) | 84.9±3.3 (81–95) |
| Age categories years | ||
| 81–89 | 341 (93.2) | 378 (88.3) |
| 90–95 | 25 (6.8) | 50 (11.9) |
| FEV1 pre-bronchodilator L | 1.95±0.59 (0.43–3.56) | 1.35±0.4 (0.43–3.37) |
| FVC pre-bronchodilator L | 3.08±0.76 (0.43–5.26) | 2.015±0.473 (0.71–3.41) |
| FEV1/FVC pre-bronchodilator % | 63.9±13.1 (18.13–99.53) | 67.5±11.13 (37.3–91.82) |
Data are presented as n, mean±sd (range) or n (%). FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity.