Table 2. Baseline characteristics LEAD study cohort, stratified by age and gender.
| Children (6–<18 years) | Adults (≥18 years) | |||
| N = 1,345 | N = 10,078 | |||
| Male | Female | Male | Female | |
| N = 732 | N = 613 | N = 4,701 | N = 5,377 | |
| Mean (SD) (N missing, if any) |
Mean (SD) (N missing, if any) |
Mean (SD) (N missing, if any) |
Mean (SD) (N missing, if any) |
|
| Height, cm | 152.3 (20.3) | 149.6 (15.9) | 177.5 (7.1) | 164.2 (6.6) |
| Weight, kg | 46.8 (19.3) | 44.1 (15.3) | 84.5 (14.2) | 68.1 (14.0) |
| BMI, kg/m2 | 19.3 (4.1) | 19.1 (3.9) | 26.8 (4.3) | 25.3 (5.2) |
| Waist circumference, cm | 69.9 (12.4) (1) | 68.3 (10.9) (1) | 97.4 (12.7) (6) | 88.5 (13.6) (14) |
| Smoking status | % [CI; 95%] (N missing, if any) |
% [CI; 95%] (N missing, if any) |
% [CI; 95%] (N missing, if any) |
% [CI; 95%] (N missing, if any) |
| Never, % | 96.6 [95.3–97.9] | 97.1 [95.8–98.4] | 38.1 [36.7–39.5] | 49.1 [47.8–50.4] |
| Former, % | 0.1 [0.0–0.3] | 0.2 [0.0–0.6] | 35.8 [34.4–37.2] | 28.8 [27.6–30.0] |
| Pack years | 22.8 (27.3) (10) | 14.5 (18.7) (10) | ||
| Current, % | 3.3 [2.0–4.6] | 2.8 [1.5–4.1] | 26.1 [24.8–27.4] | 22.0 [20.9–23.1] |
| Pack years | 1.3 (1.5) (2) | 0.6 (0.9) | 20.0 (21.3) (8) | 16.0 (16.0) (10) |
| Former and currents smokers with <20 pack years, % | 3.2 [1.9–4.5] (2) | 2.9 [1.6–4.2] | 36.8 [35.4–38.2] (18) | 36.1 [34.8–37.4] (20) |
| Former and currents smokers with ≥20 pack years, % | none | none | 25.0 [23.8–26.2] (18) | 14.6 [13.7–15.5] (20) |
| Environmental tobacco smoke (ETS) at most days and/or nights of week for several hours |
||||
| In adolescents, % | 17.8 [15.0–20.6] (2) | 19.7 [16.6–22.8] | 38.2 [36.8–39.6] | 39.4 [38.1–40.7] |
| In adulthood, % | — | — | 46.4 [45.0–47.8] (10) | 49.5 [48.2–50.8] (7) |
BMI, body mass index; CI, confidence interval; SD, standard deviation.