Table 1. Distribution of baseline characteristics and parent-reported symptoms in early life in relation to early life food-related symptoms (FRS) and food allergy (FA).
| No early life reactions or allergy to food (N = 2083) | Early life FRS but not FA (N = 314) | Early life FA (N = 175) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Baseline characteristics | n | Percent | 95% CI | n | Percent | 95% CI | n | Percent | 95% CI |
| Females | 1055 | 50.7 | 48.5–52.8 | 165 | 52.6 | 46.9–58.1 | 74 | 42.3 | 34.9–50.0 |
| Swedish-born parents | 1623 | 81.1 | 79.3–82.8 | 239 | 77.6 | 72.5–82.1 | 128 | 74.0 | 65.9–79.6 |
| White collar families | 1748 | 84.9 | 83.3–86.5 | 266 | 85.0 | 80.5–88.8 | 141 | 81.5 | 74.9–87.0 |
| Parental allergy* | 594 | 28.8 | 26.8–30.8 | 92 | 29.7 | 24.6–35.1 | 79 | 45.7 | 38.1–53.4 |
| Infant feeding | |||||||||
| Exclusive breastfeeding for ≥ 4 months | 1689 | 81.2 | 79.4–82.8 | 244 | 77.7 | 72.7–82.2 | 145 | 82.9 | 76.4–88.1 |
| Early life allergic multimorbidity (to 4 years) | |||||||||
| Asthma | 210 | 10.0 | 8.9–11.5 | 49 | 15.7 | 11.9–20.2 | 45 | 26.6 | 20.2–33.8 |
| Eczema | 529 | 25.4 | 23.6–27.4 | 150 | 48.1 | 42.4–53.8 | 127 | 72.6 | 65.3–79.0 |
| Rhinitis | 199 | 9.8 | 8.5–11.2 | 70 | 22.7 | 18.1–27.7 | 74 | 43.0 | 35.5–50.8 |
| At least one of the above | 799 | 38.4 | 36.3–40.5 | 199 | 63.4 | 57.8–68.7 | 140 | 80.0 | 73.3–85.7 |
*Doctor-diagnosed asthma and/or hayfever in combination with allergy to furred pets and/or pollen for either or both parents at the time of enrolment