Table 1.

Characteristics of LoewenKIDS subcohort.

	LoewenKIDS subcohort
Number of participants	120
Sex
Female	57
Male	62
n.a	1
Birth mode
Vaginal	92
C-section	28
Older siblings
No	73
Yes	47
Pets
No	77
Yes	43
Onset of daycare
< 12 months	18
≥ 12 months	74
n.a	28
Exclusive breastfeeding
No exclusive breastfeeding	3
< 6 months	49
≥ 6 months	51
n.a	17
Total breastfeeding
No breastfeeding	0
< 6 months	13
6–12 months	44
≥ 12 months	52
n.a	11

n.a., not available.

All except one child were born within term (4 weeks prior to two weeks after the calculated date of birth).