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Preventing Chronic Disease | Area-Level Socioeconomic Status, Adiposity, Physical Activity, and Inflammation in Young Adults, 2013 - CDC

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Preventing Chronic Disease | Area-Level Socioeconomic Status, Adiposity, Physical Activity, and Inflammation in Young Adults, 2013 - CDC



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Area-Level Socioeconomic Status, Adiposity, Physical Activity, and Inflammation in Young Adults, 2013

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Michael V. Fedewa, MA; Bhibha M. Das, PhD, MPH; Ronald L. Forehand, MD; Ellen M. Evans, PhD

Suggested citation for this article: Fedewa MV, Das BM, Forehand RL, Evans EM. Area-Level Socioeconomic Status, Adiposity, Physical Activity, and Inflammation in Young Adults, 2013. Prev Chronic Dis 2014;11:140090. DOI: http://dx.doi.org/10.5888/pcd11.140090External Web Site Icon.
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Abstract

Introduction
We assessed the independent effects of socioeconomic status, sex, adiposity, and physical activity on C-reactive protein in young adults.
Methods
During the fall semester of their first year, college students (n = 177; mean age, 18.1 y; 66.7% female; 65.5% white) were assessed for adiposity via dual x-ray absorptiometry, physical activity via accelerometer, and serum C-reactive protein. Area-level socioeconomic status was based on self-reported home zip code. Hierarchical linear modeling was used to assess the relationship of sex, adiposity, and physical activity on the dependent variable of C-reactive protein, with participants nested within geographic regions of similar socioeconomic characteristics.
Results
C-reactive protein was positively associated with adiposity and inversely associated with socioeconomic status (both P < .05). Area-level socioeconomic status explained 28.2% of the variance in C-reactive protein. Adiposity was significantly associated with C-reactive protein in the full model (P = .006); physical activity was not associated with C-reactive protein (P = .48), and area-level socioeconomic status approached significance (P = .05) within the age range of our analysis after accounting for the variance explained by adiposity.




Conclusion
The significant positive association between adiposity and C-reactive protein suggests that young adults with higher adiposity have higher C-reactive protein levels after accounting for area-level socioeconomic status, sex, and physical activity.


Acknowledgments

This study was supported by US Department of Agriculture grant no. 2008-55215-18825. The authors have no potential, perceived, or real conflicts of interest to disclose.
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Author Information

Corresponding Author: Michael V. Fedewa, Department of Kinesiology, Office 101B, 330 River Rd, Ramsey Center, University of Georgia, Athens, GA 30602-6554. Telephone: 616-617-6394. E-mail: fedew1mv@uga.edu.
Author Affiliations: Bhibha M. Das, East Carolina University, Greenville, North Carolina; Ronald L. Forehand, Ellen M. Evans, University of Georgia, Athens, Georgia.
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