Asthma prevalence trends by weight status among US children aged 2-19 years, 1988-2014.
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ABSTRACT: Background
Obesity is a risk factor for asthma. However, it is unclear if increased obesity prevalence contributed to rising childhood asthma prevalence.Objective
To assess if population-level changes in weight status impacted asthma prevalence over time.Methods
Using nationally representative 1988-2014 National Health and Nutrition Examination Survey data for 40 644 children aged 2-19 years, we analyzed asthma trends by weight status (body mass index age-specific percentiles determined using measured weight and height). Logistic regression and population attributable fraction were used to assess the association between obesity and asthma prevalence.Results
Although obesity was a risk factor for asthma throughout the period, asthma prevalence increased only among children with normal weight; there was no interaction between weight status and time. The population attributable fraction for overweight/obesity rose from 8.5% in 1988-1994 to 11.9% in 2011-2014, but this increase was not significant (P = 0.44).Conclusions
Together, these data do not support a contribution of obesity trends to asthma prevalence trends.
SUBMITTER: Akinbami LJ
PROVIDER: S-EPMC6476424 | biostudies-literature | 2018 Jun
REPOSITORIES: biostudies-literature
Publications
Asthma prevalence trends by weight status among US children aged 2-19 years, 1988-2014.
Akinbami L J LJ Rossen L M LM Fakhouri T H I THI Fryar C D CD
Pediatric obesity 20171112 6
<h4>Background</h4>Obesity is a risk factor for asthma. However, it is unclear if increased obesity prevalence contributed to rising childhood asthma prevalence.<h4>Objective</h4>To assess if population-level changes in weight status impacted asthma prevalence over time.<h4>Methods</h4>Using nationally representative 1988-2014 National Health and Nutrition Examination Survey data for 40 644 children aged 2-19 years, we analyzed asthma trends by weight status (body mass index age-specific percent ...[more]
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