Association Between Physical Activity Intensity and Allergies in Children: Insights from NHANES 2005-2006

Abstract

Background

Allergies are among the most prevalent global health conditions, affecting a growing proportion of children each year and imposing a burden to healthcare systems and families. The etiology of allergies involves complex interactions between genetic, socioeconomic, and environmental factors, with potential contributions from modifiable factors like physical activity (PA). This study examined whether higher frequency and intensity of PA are associated with reduced allergy diagnoses in children. 

Methods

This study analyzed data from the National Health and Nutrition Examination Survey (NHANES) 2005-2006 dataset. The sample included 2,196 children aged 2–11 years. Univariate and multivariate logistic regression models assessed the association between PA frequency and allergy diagnosis. All analyses were conducted using StataNow/BE version 18.5 software.

Results 

Among the 2,196 children analyzed, 19.85% had been diagnosed with allergies. The median frequency of vigorous PA was 7 times per week. Logistic regression analyses showed no significant association between physical activity frequency and allergy diagnosis (adjusted OR: 0.998, 95% CI: 0.971–1.026, p = 0.915). However, older age, race, and family income were significantly associated with an increased likelihood of allergies, while room humidity showed a small protective effect. 

Conclusion

These findings support that while physical activity does not significantly impact allergy diagnoses in children, other demographic and environmental factors have significant influence. Further research is needed to explore additional modifiable factors, such as dietary influences and specific environmental exposures, to better inform prevention strategies.