Quigley MA, et al. - Researchers investigated the link between breastfeeding duration and childhood wheezing, using UK Millennium Cohort Study data. According to age at wheezing and wheezing phenotype, heterogeneity was obviously seen in the association between breastfeeding and wheezing. It was noted that the association between breastfeeding and wheeze varied by age. Breastfeeding for 6-9 months was found to be related to lower odds of wheezing at age 9 months, 3, and 5 years, but less so at age 7 and 11 years. A strong dose response relationship was also noted for breastfeeding per month and early transient wheeze, but no clear trend was observed for late onset or persistent wheeze.