Characteristics of males and females at ages 20 and 29 yrs
| Males# | Females¶ | |||||
| Age 20 yrs | Age 29 yrs | p-value | Age 20 yrs | Age 29 yrs | p-value | |
| CRP+ μg·L−1 | 0.61 (0.55–0.68) | 0.81 (0.73–0.89) | <0.0001 | 1.40 (1.24–1.58) | 1.37 (1.22–1.55) | 0.91 |
| FEV1 L | 4.65 (4.59–4.71) | 4.56 (4.49–4.63) | <0.0001 | 3.42 (3.38–3.47) | 3.38 (3.34–3.43) | <0.0001 |
| FVC L | 5.82 (5.74–5.90) | 5.98 (5.89–6.07) | <0.0001 | 4.11 (4.06–4.16) | 4.29 (4.23–4.34) | 0.01 |
| FEV1 % pred | 99.1 (97.9–100.3) | 99.0 (97.6–100.3) | 0.69 | 99.6 (98.4–100.8) | 99.1 (97.9–100.3) | 0.31 |
| FVC % pred | 100.1 (99.1–101.2) | 100.4 (99.1–100.6) | 0.54 | 99.7 (98.5–100.9) | 100.4 (99.1–100.7) | 0.12 |
| FEV1/FVC % | 80.3 (79.5–81.0) | 76.6 (75.9–77.3) | <0.0001 | 83.7 (83.0–84.3) | 79.5 (78.9–80.2) | <0.0001 |
| BMI kg·m−2 | 23.2 (22.9–23.5) | 25.9 (25.5–26.3) | <0.0001 | 23.0 (22.6–23.3) | 24.7 (24.2–25.2) | <0.0001 |
| Cardiorespiratory fitness W·kg−1 | 48.7 (48.0–49.4) | 40.6 (39.8–41.4) | <0.0001 | 37.7 (37.1–38.3) | 33.4 (32.6–24.2) | <0.0001 |
| Asthma % | 10.3 (7.7–13.4) | 12.3 (9.5–15.6) | 0.39 | 12.1 (9.2–15.6) | 13.9 (10.6–17.6) | 0.52 |
| Smoking % | 35.0 (30.6–39.5) | 35.5 (31.2–40.0) | 0.92 | 37.8 (33.3–42.5) | 29.6 (25.2–34.3) | 0.01 |
Data are presented as mean (95% confidence interval), unless otherwise stated. Pregnant females were excluded. CRP: C-reactive protein; FEV1: forced expiratory volume in one second; FVC: forced vital capacity; % pred: % predicted; BMI: body mass index. #: n = 344; ¶: n = 323; +: geometric mean.