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Asthma prevalence trends by weight status among US children aged 2-19 years, 1988-2014.


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

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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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