TABLE 1.
Characteristics of children and their mothers
| n = 945 | |
|---|---|
| Maternal characteristics | |
| History of asthma or atopy, yes (%) | 39.6 (374) |
| Educational level, low/middle (%) | 34.0 (321) |
| Smoking during pregnancy, yes (%) | 12.1 (114) |
| Maternal psychiatric symptoms1 | 0.12 (0.00, 0.54) |
| Parity, nulliparous (%) | 63.1 (596) |
| Pet keeping, yes (%) | 43.7 (413) |
| Child's characteristics | |
| Female sex (%) | 49.1 (464) |
| Gestational age at birth (weeks)1 | 40.3 (37.3, 42.1) |
| Ever breastfeeding, yes (%) | 90.8 (858) |
| Day care attendance 1st year, yes (%) | 68.3 (645) |
| Current asthma age 10 y, yes (%) | 4.0 (33) |
| Lung function measures age 10 y | |
| FEV1 (L) | 2.05 (0.29) |
| FVC (L) | 2.38 (0.35) |
| FEV1/FVC (%) | 86.33 (5.58) |
| FEF75 (L/s) | 1.15 (0.34) |
Values are means (SD), valid percentages (absolute numbers), or 1medians (5‐95th percentiles). Forced Expiratory Volume in the first second (FEV1). Forced Vital Capacity (FVC). Forced Expiratory Flow after exhaling 75% of FVC (FEF75). Data were missing and not imputed for asthma (n = 121) and lung function measures (n = 172).