Allergologia et immunopathologia · 2007
Atopic disease and body mass index.
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Silva M J, Ribeiro M C, Carvalho F, Gonçalves Oliveira J M
Аннотация
BACKGROUND: Obesity and atopy are two increasingly important population health issues. Excess weight and obesity are potential risk factors for atopy (specifically asthma).
OBJECTIVE AND METHODS: To determine the body mass index (BMI) in children with atopic disease compared with nonatopic children, and to determine whether obesity is associated to more severe disease. Children aged 5 to 16 years with diagnosed atopic disease that attended the Ambulatory Hospital Center where eligible as cases. Children aged 5 to 16 years without atopic disease from a school in the same geographic area were used as controls.
RESULTS: A total of 228 children where included in the analysis: 112 children with atopy (75.9% asthma, 21.4% rhinitis and 2.7% eczema) and 116 children without atopy. The median age was 10.5 and 10.3 years for the atopic and non-atopic children, respectively. The prevalence of overweight or obese subjects was significantly greater in the atopic group (44.6% vs 31.9%, p 0.05). The obese asthmatic children had a significantly higher prevalence of sleep disturbances due to wheezing in the last 12 months (45.5% vs 15.9%, p 0.05). They also reported dry cough at night more often (50% vs 28.6%, p = 0.07), and a higher number of wheezing attacks in the past 12 months (72.7% vs 50.8%, p = 0.074), than the non-obese asthmatic children. Most of the obese atopic children were already overweight or obese at the time of the diagnosis (66.6%). None of the associations were significantly different for boys or girls.
DISCUSSION: There is some evidence of an association between excess body weight or obesity and atopy--particularly asthma.
OBJECTIVE AND METHODS: To determine the body mass index (BMI) in children with atopic disease compared with nonatopic children, and to determine whether obesity is associated to more severe disease. Children aged 5 to 16 years with diagnosed atopic disease that attended the Ambulatory Hospital Center where eligible as cases. Children aged 5 to 16 years without atopic disease from a school in the same geographic area were used as controls.
RESULTS: A total of 228 children where included in the analysis: 112 children with atopy (75.9% asthma, 21.4% rhinitis and 2.7% eczema) and 116 children without atopy. The median age was 10.5 and 10.3 years for the atopic and non-atopic children, respectively. The prevalence of overweight or obese subjects was significantly greater in the atopic group (44.6% vs 31.9%, p 0.05). The obese asthmatic children had a significantly higher prevalence of sleep disturbances due to wheezing in the last 12 months (45.5% vs 15.9%, p 0.05). They also reported dry cough at night more often (50% vs 28.6%, p = 0.07), and a higher number of wheezing attacks in the past 12 months (72.7% vs 50.8%, p = 0.074), than the non-obese asthmatic children. Most of the obese atopic children were already overweight or obese at the time of the diagnosis (66.6%). None of the associations were significantly different for boys or girls.
DISCUSSION: There is some evidence of an association between excess body weight or obesity and atopy--particularly asthma.