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Increased asthma risk and asthma-related health care complications associated with childhood obesity

Mary Helen Black, Hui Zhou, Miwa Takayanagi

    American Journal of Epidemiology
    |August 9, 2013
    PubMed

    Insights

    Childhood obesity increases asthma risk and severity. Obese youth are more likely to develop asthma and experience more severe symptoms, requiring greater healthcare attention.

    Area of Science:

    • Pediatric Health
    • Epidemiology
    • Obesity Research

    Background:

    • Asthma is a leading chronic childhood illness.
    • The links between childhood obesity, asthma risk, and disease severity remain unclear.

    Purpose of the Study:

    • To investigate the association between obesity and asthma incidence in youth.
    • To examine the impact of obesity on asthma outcomes and healthcare utilization.

    Main Methods:

    • A population-based, longitudinal study analyzed data from 623,358 patients aged 6-19 years.
    • Data were extracted from administrative and electronic health records (2007-2011).
    • Asthma incidence and risk were assessed across different weight categories.

    Main Results:

    • Asthma incidence increased with obesity severity, from 16.9 to 22.3 per 1,000 person-years.
    • Obesity significantly elevated asthma risk: overweight (1.16), moderate obesity (1.23), extreme obesity (1.37).
    • The obesity-asthma link was strongest in Asian/Pacific Islanders and young girls; obese asthmatics had more exacerbations.

    Conclusions:

    • Obese youth face a higher likelihood of developing asthma.
    • Obesity is associated with more severe asthma, leading to increased healthcare needs and treatment intensity.

    Keywords:
    asthmabody mass indexcohort studiesobesityoverweightsevere asthma

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