Characteristic EP, N = 721 ET, N = 371 LP, N = 2481 p-value2
wh1 8 (11%) 4 (11%) 7 (2.8%) 0.005
wh2 18 (25%) 15 (41%) 3 (1.2%) <0.001
wh3 32 (44%) 20 (54%) 5 (2.0%) <0.001
wh4 48 (67%) 0 (0%) 2 (0.8%) <0.001
birthweight 3.60 (3.18, 3.92) 3.70 (3.40, 3.90) 3.60 (3.20, 3.90) 0.7
GA
36 2 (2.8%) 0 (0%) 3 (1.2%)
37 7 (9.7%) 3 (8.1%) 8 (3.2%)
38 11 (15%) 6 (16%) 36 (15%)
39 11 (15%) 5 (14%) 58 (23%)
40 23 (32%) 12 (32%) 90 (36%)
41 17 (24%) 9 (24%) 48 (19%)
42 1 (1.4%) 2 (5.4%) 5 (2.0%)
birthmode 12 (17%) 7 (19%) 50 (20%) 0.8
Pets_PN 22 (31%) 11 (30%) 87 (35%) 0.7
Smokers_PN 19 (26%) 11 (30%) 40 (16%) 0.041
Mom_Asthma 42 (58%) 13 (35%) 100 (40%) 0.014
Mom_HayFever 46 (64%) 17 (46%) 138 (56%) 0.2
Mom_Eczema 32 (44%) 10 (27%) 86 (35%) 0.2
Mom_Hives 41 (57%) 12 (32%) 92 (37%) 0.006
MoM_FoodAllergy 33 (46%) 7 (19%) 75 (30%) 0.008
FirstBorn 27 (38%) 17 (46%) 109 (44%) 0.6
mom_PS 51 (71%) 28 (76%) 196 (79%) 0.3
mom_atopy 61 (85%) 27 (73%) 191 (77%) 0.3
Dad_Asthma 24 (33%) 16 (43%) 88 (35%) 0.6
Dad_HayFever 27 (38%) 19 (51%) 139 (56%) 0.021
Dad_Eczema 11 (15%) 11 (30%) 64 (26%) 0.13
Dad_Hives 15 (21%) 8 (22%) 56 (23%) >0.9
Dad_FoodAllergy 16 (22%) 13 (35%) 71 (29%) 0.3
dad_atopy 45 (62%) 28 (76%) 184 (74%) 0.13
sex 43 (60%) 24 (65%) 114 (46%) 0.023
Intervention 30 (42%) 25 (68%) 125 (50%) 0.038
CityR 48 (67%) 23 (62%) 114 (46%) 0.003
Peanuts 35 (49%) 10 (27%) 101 (41%) 0.094
Nuts 25 (35%) 12 (32%) 66 (27%) 0.4
Fish 29 (40%) 10 (27%) 91 (37%) 0.4
Seafood 16 (22%) 12 (32%) 51 (21%) 0.3
Eggs 52 (72%) 24 (65%) 165 (67%) 0.6
BFexcl_4m 18 (25%) 14 (38%) 92 (37%) 0.2
BF_12m 16 (22%) 17 (46%) 91 (37%) 0.024
atopy_1y 23 (32%) 4 (11%) 51 (21%) 0.028
bmed2 0 (0%) 0 (0%) 0 (0%)
bmed3 11 (15%) 8 (22%) 2 (0.8%) <0.001
bmed4 <0.001
0 49 (68%) 26 (70%) 226 (91%)
1 22 (31%) 11 (30%) 22 (8.9%)
2 1 (1.4%) 0 (0%) 0 (0%)

1 Statistics presented: n (%); median (IQR)

2 Statistical tests performed: Fisher's exact test; chi-square test of independence; Kruskal-Wallis test