Abstract
AK Lossius, MC Magnus, J Lunde, K Stordal. J Pediatr. 2018;195:182–189.e2 To investigate the association between breastfeeding duration and age of complementary food introduction with the development of childhood asthma. Previous studies with similar outcome measures have been mixed without a clear consensus, but large prospective cohort studies are lacking. The study included patients in the Norwegian Mother and Child Cohort Study, a prospective population-based pregnancy cohort directed by the Norwegian Institute of Public Health. Between 1999 and 2008, 41 020 mother-child pairs were enrolled for the primary outcome of asthma at the age of 7 years. Two baseline questionnaires were conducted …
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