Breastfeeding, Body Mass Index, and Asthma and Atopy in Children
Asthma is the leading cause of hospitalization in Australian children and its prevalence is increasing worldwide (Peat & Li 1999). In developed nations the increase in prevalence of childhood asthma has been paralleled by an increase in childhood obesity (WHO 1998). There has been considerable debate as to whether formula-feeding is a risk factor for childhood obesity (von Kries et al. 2001). Furthermore, investigators have speculated that obesity may be a causal factor in the inception of childhood asthma and a number of studies have shown positive associations between body mass index (BMI=weight/(kg)/(m)2) or obesity with asthma (von Mutius et al. 2001). Breastfeeding has been shown to protect against overweight and obesity (von Kries et al. 1999; Hediger et al. 2001) as well as asthma in childhood (Oddy et al. 1999), although the relationship between breastfeeding and childhood asthma remains speculative (Wright et al. 2001).
KeywordsPropensity Score Childhood Obesity Childhood Asthma Exclusive Breastfeed Current Asthma
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