Table 1 Characteristics of mothers and neonates
|  | Mothers without allergies (n = 234) | Mothers with allergies (n = 98) | P-value |
|---|---|---|---|
Maternal age, y (IQR) | 26 (23–32) | 28 (22–35) | 0.26 |
Body mass index (IQR) | 23.15 (19.98–26.89) | 22.04 (19.05–28.04) | 0.23 |
Smoking status, n (%) | |||
 Non smoking | 225 (96.15) | 97 (98.98) | 0.29 |
 Smoking during pregnancy | 0 (0) | 0 (0) |  |
 Smoking until pregnancy | 9 (3.85) | 1 (1.02) | 0.29 |
Maternal total IgE, UI/ml (IQR) | 26.4 (9.42–57.9) | 68.5 (42.5–222.4) | 0.005 |
Maternal allergies [sIgE (+)], n (%) | 0 (0) | 98 (100) | Â |
 Asthma | 0 (0) | 23 (23.47) |  |
 Allergic rhinitis | 0 (0) | 66 (67.35) |  |
 Allergic eczema | 0 (0) | 30 (30.61) |  |
Endotoxins in maternal bedroom, EU/mg (IQR) | 14.77 (4.20–55.18) | 11.73 (2.64–50.14) | 0.10 |
β (1,3)-glucans in maternal bedroom, μg/mg (IQR) | 3.42 (1.04–9.57) | 2.33 (0.67–5.88) | 0.16 |
Vaginal delivery, n (%) | 210 (89.74) | 82 (83.67) | 0.14 |
Male neonate gender, n (%) | 120 (51.28) | 51 (52.04) | 0.90 |
Gestational age, weeks (SEM) | 39.91 (1.20) | 39.93 (1.18) | 0.94 |
Birth weight, g (SEM) | 3403.3 (407.37) | 3610.56 (427.19) | 0.45 |
Birth length, cm (IQR) | 51.75 (51.36–52.14) | 53 (52.48–53.52) | 0.19 |
Apgar 5 min score > 8, n (%) | 234 (100) | 98 (100) |  |