HealthDay News — Longer duration of exclusive breastfeeding may protect against childhood asthma, according to a study published online in Annals of Allergy, Asthma & Immunology.
Keadrea Wilson, MD, from University of Tennessee Health Science Center in Memphis, and colleagues investigated the association between breastfeeding duration and childhood asthma using data from 2021 mother-child dyads.
The researchers found that among women, 33% reported 0 to less than 2 months of breastfeeding, 13% 2 to 4 months, 9% 5 to 6 months, and 45% more than 6 months. Any breastfeeding had a protective linear trend only for ever asthma. The protective effect was duration dependent for exclusive breastfeeding and current asthma (adjusted odds ratios [95% confidence intervals], 0.64 [0.41 to 1.02], 0.61 [0.38 to 0.98], and 0.52 [0.31 to 0.87] for 2 to 4 months, 5 to 6 months, and more than 6 months, respectively). Protective associations with exclusive breastfeeding tended to be stronger in dyads with children born by vaginal vs cesarean delivery.
“Our study strengthens current breastfeeding recommendations which reflect recent analysis that show lower risk of asthma with more vs less breastfeeding,” Wilson said in a statement.