Abstract
Objective
To investigate association between dietary habits and asthma severity in children.
Design
Cross-sectional study.
Setting
Two teaching hospitals in Brazil.
Participants
Cases (n=268) were children (3–12yr) with persistent asthma and age-matched controls (n=126) were those with intermittent asthma.
Main outcome measures
Dietary habits were determined based on food consumption in the past 12 months classified as frequent (≥3 times per week) or infrequent (never or <3 times per week).Nutritional status was classified into two categories according to WHO Child Growth Standards: obese: >2Z-score of BMI-for-age; non-obese: ≤2Z-score of BMI-for-age.
Results
After adjusting for confounding factors, maternal smoking during pregnancy, preterm birth and obesity were significantly associated with persistent asthma, with adjusted ORs (95% CI) of 2.11 (1.08–4.13), 2.61(1.07–6.35) and 2.89 (1.49–5.61), respectively. No significant association was observed between frequency of consumption of specific foods, food groups, or dietary pattern (pro- or contra-Mediterranean diet) and the severity of asthma.
Conclusions
This study did not find a significant association between dietary habits and asthma severity in children. Maternal smoking during pregnancy, preterm birth and obesity were independent factors associated with persistent asthma.
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Silveira, D.H., Zhang, L., Prietsch, S.O.M. et al. Association between dietary habits and asthma severity in children. Indian Pediatr 52, 25–30 (2015). https://doi.org/10.1007/s13312-015-0561-x
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DOI: https://doi.org/10.1007/s13312-015-0561-x