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Table 1 Cumulative incidence of self-reported food allergy or intolerance (SRFA) in children from Mölndal and Kiruna

From: Late introduction of solids into infants’ diets may increase the risk of food allergy development

Children with allergy, n (%) Total Mölndal Kiruna P
No. replying to the question n = 1027 n = 715 n = 312  
Total (Any SRFA) 201 (19.6) 112 (15.7) 89 (28.5) <.001
Boys 92 (19) 50 (15.4) 42 (26.6) .003
Girls 109 (20) 62 (15.9) 47 (30.7) .001
P-value (boys vs girls) .690 .863 .420
No. replying to the question Milk-SRFA n = 1014 n = 702 n = 312  
Milk total 120 (11.8) 66 (9.4) 54 (17.3) .001
Early-onset (< 3 years) 74 (7.3) 40 (5.7) 34 (10.9) .003
Milk-SRFA: skin- manifestationa 41 (4.0) 23 (3.3) 18 (5.8) .062
Milk-SRFA: GI-manifestationb 101 (10.0) 55 (7.8) 46 (14.7) <.001
No. replying to the question Peanut-SRFA n = 999 n = 687 n = 312  
Total 28 (2.8) 14 (2.0) 14 (4.5) .039
Peanut-SRFA with symptoms other than only OASc 23 (2.3) 10 (1.5) 13 (4.2) .008
No. replying to the question Egg-SRFA n = 996 n = 686 n = 310  
Total 27 (2.7) 16 (2.3) 11 (3.5) .352
No. replying to the question Tree nut-SRFA n = 999 n = 688 n = 311  
Total 23 (2.3) 13 (1.9) 10 (3.2) .222
Tree nut-SRFA with symptoms other than only OASc 14 (1.4) 5 (0.7) 9 (2.9) .006
No. replying to the question Fish-SRFA n = 995 n = 683 n = 312  
Total 11 (1.1) 5 (0.7) 6 (1.9) .159
No. replying to the question Cereal-SRFA n = 995 n = 683 n = 312  
Total 7 (0.7) 5 (0.7) 2 (0.6) 1.0d
  1. aSkin-manifestation = symptoms from the skin such as rash, urticaria or eczema, bGI-manifestation = symptoms from the abdomen or gastrointestinal tract such as vomiting, abdominal pain or diarrhea, cOAS = oral allergy syndrome, dFisher’s exact test
  2. P = P-value for Mölndal versus Kiruna