Table 1.
Characteristics of the participants included in the study (n = 144).
| Non-Sensitized n = 130 | IgE Sensitized n = 14 | p | |
|---|---|---|---|
| Infant information | |||
| Boys, n (%) | 65 (50) | 9 (64) | 0.31 |
| Birth in winter/spring, n (%) | 70 (54) | 8 (57) | 0.81 |
| Urban living, n (%) | 91 (70) | 11 (79) | 0.50 |
| First born, n (%) | 42 (36) | 2 (17) | 0.18 |
| Exclusive breastfeeding, months | 4 (2, 5) | 4 (0, 4) | 0.18 |
| Any breastfeeding, months | 8 (6, 10) | 8 (7, 11) | 0.97 |
| Weight gain 0–2 months, kg | 1.8 ± 0.5 | 2.2 ± 0.4 | 0.04 |
| Weight gain 2–6 months, kg | 2.4 ± 0.7 | 2.3 ± 0.7 | 0.59 |
| Length gain 0–6 months 1, cm | 16.8 ± 2.0 | 17.8 ± 1.7 | 0.09 |
| Head circumference gain 0–2 months, cm | 4.2 ± 1.0 | 4.9 ± 1.2 | 0.02 |
| Head circumference gain 2–6 months, cm | 4.2 ± 0.7 | 3.9 ± 0.8 | 0.15 |
| Parent information 2 | |||
| Maternal smoking, n (%) | 4 (3) | 2 (15) | 0.05 |
| Paternal smoking, n (%) | 18 (16) | 3 (23) | 0.49 |
| Maternal age, years | 31.3 ± 4.8 | 33.2 ± 5.4 | 0.18 |
| Paternal age, years | 34.1 ± 5.7 | 36.5 ± 6.6 | 0.16 |
| Maternal BMI, kg/m2 | 23.5 (21.4, 26.5) | 26.6 (21.8, 33.2) | 0.21 |
| Paternal BMI, kg/m2 | 26.0 (24.3, 28.1) | 26.6 (23.4, 28.7) | 0.82 |
| Basic education mother 3, n (%) | 19 (16) | 4 (31) | 0.19 |
| Basic education father 3, n (%) | 26 (23) | 4 (31) | 0.52 |
Data presented as n (%), mean ± SD or median (25th, 75th percentiles). Chi-square, two-sided t-test or Mann–Whitney U-test used for comparison between groups. 1 Length gain 0–2 months and 2–6 months not reported due to a large number of missing values for length at 2 months (missing n = 56). 2 From questionnaire answered when the infant is 12 months old. 3 Elementary school (10 years in school) is the highest level of completed education.