Table 2.
Descriptive statistics among men and women from Malmo Offspring Study (MOS)
| Total population (N = 1401) |
Men (N = 672) |
Women (N = 729) |
||
|---|---|---|---|---|
| Age (years) | 28.6 ± 6.7 | 28.8 ± 6.8 | 28.3 ± 6.5 | |
| Birth characteristics | ||||
| Birth weight (gr) | 3482.6 ± 597.9 | 3530.4 ± 647.2 | 3438.6 ± 545.3 | |
| Birth weight (z-score) | − 0.1 ± 1.4 | − 0.01 ± 1.2 | − 0.18 ± 1.5 | |
| Birth length (cm) | 50.3 ± 2.4 | 50.8 ± 2.4 | 49.9 ± 2.3 | |
| Gestational age (days) | 278.3 ± 14 | 278.4 ± 15 | 278.2 ± 13.1 | |
| Education n (%) | ||||
| Incomplete primary school | 4 (0.3) | 1 (0.2) | 3 (0.5) | |
| Primary school | 53 (3.8) | 22 (4.1) | 31 (4.9) | |
| Secondary school | 702 (50.1) | 368 (67.9) | 334 (52.8) | |
| Higher level | 415 (29.6) | 151 (27.9) | 264 (41.8) | |
| Missing | 227 (16.2) | |||
| History of smoking n (%) | ||||
| Current* | 234 (16.7) | 101 (18.7) | 133 (20.9) | |
| Ex-smoker | 183 (13.1) | 79 (14.6) | 104 (16.4) | |
| Never | 759 (54.2) | 361 (66.7) | 398 (62.7) | |
| Missing | 225 (16.1) | |||
| Adult antropometry | ||||
| Body mass index (kg/m2) | 24.96 ± 4.59 | 25.56 ± 4.41 | 24.40 ± 4.68 | |
| Lung function spirometry | ||||
| FEV1 (l per 1 s) | 3.6 ± 0.8 | 4.5 ± 0.6 | 3.3 ± 0.5 | |
| FEV1 (z-score) | − 0.4 ± 0.9 | − 0.5 ± 0.9 | − 0.4 ± 1 | |
| FVC(l) | 4,8 ± 1.1 | 5.7 ± 0.8 | 4.0 ± 0.6 | |
| FVC (z-score) | − 0.1 ± 0.9 | − 0.1 ± 0.9 | − 0.1 ± 0.9 | |
| FEV1/FVC (%) | 80.5 ± 6.8 | 78.7 ± 6.8 | 82.0 ± 0.3 | |
| FEV1/FVC (z-score) | − 0.5 ± 0.9 | − 0.6 ± 1 | − 0.5 ± 0.9 | |
Mean (SD) and proportions; frequency and percentage. FEV1- forced expiratory volume in one second; FVC- forced vital capacity; FEV1/FVC- ratio of FEV1 by FVC. *Both regular and occasionally smoker