Table 2

Length of exclusive and partial breast feeding in relation to reported asthma and allergic symptoms among 3791 children up to 2 years of age

Exclusive breast feedingPartial breast feeding
<4 months
(n=773)
≥4 months
(n=3013)
<6 months
(n=680)
≥6 months
(n=3110)
n%n%OR adj*95% CIn%n%OR adj*95% CI
*Adjustment has been made for gender, heredity, maternal age, smoking during pregnancy and/or during the three first months of life of the child, and year of construction of home of the family.
†Asthma in combination with one or more of the following: atopic dermatitis, suspected allergic rhinitis, suspected allergic respiratory symptoms after exposure to pollen or pets, or adverse reactions to food.
‡Wheezing and/or disturbing cough, after contact with furred pets or tree/grass pollen.
§At least three of the five different outcomes: asthma, atopic dermatitis, suspected allergic rhinitis, suspected allergic respiratory symptoms after exposure to pollen or pets, or adverse reactions to food.
Wheezing ever25133797270.780.65 to 0.9321932830270.810.67 to 0.97
Asthma according to definition9012231 7.70.660.51 to 0.878112240 7.70.690.52 to 0.91
Doctor’s diagnosis of asthma71 9.2174 5.80.660.49 to 0.9064 9.4181 5.80.690.50 to 0.95
Asthma combined with any other allergic manifestation†53 6.9133 4.40.690.49 to 0.9746 6.8140 4.50.770.54 to 1.1
Suspected allergic rhinitis70 9.0192 6.50.730.54 to 0.9961 9.0201 6.50.800.58 to 1.09
Suspected allergic respiratory symptoms‡58 7.5137 4.60.660.47 to 0.9248 7.0148 4.80.800.56 to 1.15
Atopic dermatitis20927742250.850.71 to 1.018127770250.880.72 to 1.05
Adverse reaction to food16622601200.910.75 to 1.113520632201.00.85 to 1.31
Severe symptoms of allergic disease§71 9.2173 5.80.660.49 to 0.9064 9.5178 5.90.690.50 to 0.95