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Sex differences in the association between neck circumference and asthma
Lisa Maltz1, Ethan L Matz2, Heather Gordish-Dressman1,3
1Center for Genetic Medicine Research, Children's National Health System, Washington, DC.
Pediatric Pulmonology
|January 17, 2016
Summary
Neck circumference (NC) is a better predictor of asthma control and quality of life in males than body mass index (BMI). This finding highlights potential sex differences in asthma management strategies.
Area of Science:
- Pediatric Pulmonology
- Obesity Research
- Asthma Management
Background:
- Obesity is linked to asthma control and quality of life, typically measured by Body Mass Index (BMI).
- Limitations of BMI suggest exploring alternative anthropometric measures like Neck Circumference (NC).
- Sex-based differences in asthma and obesity associations warrant investigation.
Purpose of the Study:
- To examine the association between Neck Circumference (NC) and asthma control/quality of life in youth.
- To investigate potential sex differences in the relationship between NC, BMI, and asthma outcomes.
Main Methods:
- Observational study (AsthMaP-2 Project) of youth with physician-diagnosed asthma.
- NC stratified by age- and sex-specific cutoffs.
- Asthma control assessed by Asthma Control Test (ACT); quality of life by ITG-Asthma Short Form.
Main Results:
- High NC was associated with worse asthma control and lower quality of life in males, but not females.
- For males, NC explained more variability in asthma control and quality of life scores than BMI percentile alone.
- BMI percentile was the primary predictor for females.
Conclusions:
- Neck circumference (NC) is a valuable measure for assessing asthma control and quality of life in males.
- Future asthma research should incorporate NC and other regional adiposity measures to understand sex differences.
- This study suggests tailored approaches for asthma management considering sex and adiposity measures beyond BMI.
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