Original articles
Associations between Body Mass Index and serum levels of C-Reactive Protein
Abstract
Methods: 8453 adults aged 20 years and older, were analyzed. Every subject completed a household interview, BMI measurement, serum C-reactive protein (CRP) measurement, and a questionnaire regarding personal health. BMI was divided into quintiles, using multiple linear regression to estimate the relationship between CRP level and BMI quintiles. An extended-model approach was used for covariate adjustment. The association of central obesity and CRP level was examined with this method as well.
Results: After controlling for demographics, chronic diseases, health behaviors, and levels of folate and vitamin B12, the β coefficient, representing the change of natural-log-transformed levels of CRP for each 1 kg/m2 increased in BMI, was 0.078( P<0.001). The CRP levels also increased across increasing quintiles of BMI (P for trend <0.001). The β coefficient, representing the change of natural-log-transformed levels of CRP comparing subjects with central obesity to those without, was 0.876 (P<0.001).
Conclusion: Higher BMIs as well as central obesity are independently associated with higher levels of CRP.
Authors' affiliations
Tung-Wei Kao, Tri-Service General Hospital
I-Shu Lu,
Kuo-Chen Liao,
Hsiu-Yun Lai,
Ching-Hui Loh,
Hsu-Ko Kuo,
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Article History
Date published: 2009-05-08
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