Table 1 Clinical characteristics of atopic and nonatopic infants

From: Vitamin C in breast milk may reduce the risk of atopy in the infant

  Atopic infants (n=7) Nonatopic infants (n=27)
Family   
Father with atopic disease 2/7 (28%) 14/27 (52%)
Siblings 3/7 (42%) 15/27 (55%)
Siblings with atopic disease 3/3 (100%) 11/15 (73%)
Pets at home 1/7 (14%) 7/27 (26%)
Father smoking 2/7 (28%) 6/27 (22%)
Mothers   
Age (y) 30 (27–33) 30 (28–32)
Height (cm) 164 (161–167) 165 (163–167)
Weight at 1 month postpartum (kg) 67 (59–76) 69 (65–73)
Mother smoking before pregnancya 2/7 (28%) 3/27 (11%)
University or vocational college education 2/7 (28%) 13/27 (48%)
Maternal positive SPT 7/7 (100%) 16/27 (59%)
Maternal food hypersensitivity 6/7 (85%) 9/27 (33%)
Infants   
Birth weight (kg) 3.7 (3.3–4.1) 3.5 (3.3–3.7)
Birth length (cm) 52 (50–54) 50.5 (50–51)
Head circumference at birth (cm) 35 (34–36) 35 (34.5–35.5)
Weight at 12 months (kg) 10.0 (8.9–11.2) 10.0 (9.6–10.4)
Length at 12 months (cm) 77 (74–80) 76 (75–77)
Duration of breastfeeding (months)   
 Exclusive 3.2 (2.2–4.2) 3.5 (3.0–4.0)
 Total 8.4 (5.5–11.3) 8.7 (7.5–10.0)
  1. Data presented as mean (95% CI). Statistics: Fisher's exact test and t-test. No statistically significant differences between groups except maternal positive SPT (P=0.04) and maternal food hypersensitivity (P=0.01).
  2. aNone of the mothers were smoking during pregnancy or breastfeeding.