Demographic data
| Males | Females | All subjects | |
| Subjects n | 229 | 304 | 533 |
| Age yrs | 34.3±14.8 (11–80) | 38.5±15.2 (10–90) | 36.4±14.8 (10–90) |
| Height cm | 179.5±7.7 (143–199) | 166.4±7.0 (147–188) | 172.0±9.8 (143–199) |
| Sitting height cm | 91.4±4.2 (75–102) | 86.7±3.3 (77–96) | 88.7±5.1 (75–102) |
| Weight kg | 77.9±11.2 (32–115) | 66.0±10.9 (38–109) | 71.1±12.5 (32–115) |
| BMI kg·m−2 | 24.2±3.1 (15.6–34.0) | 23.9±4.1 (16.4–39.6) | 24.0±3.7 (15.6–39.6) |
| Cumulative smoking pack‐yrs | 4.0±9.9 (0–105) | 2.6±5.6 (0–35) | 3.2±7.8 (0–105) |
| Active smokers n | 120 | 197 | 317 |
| Former smokers n | 48 | 36 | 84 |
| Never smokers n | 60 | 68 | 128 |
Data are presented as mean±sd (range). Data regarding smoker status are not available for four participants
BMI: body mass index