Research Article

Application of Urinary Polyphenol Biomarkers Measured by Liquid Chromatography Tandem Mass Spectrometry to Assess Polyphenol Intake and Their Association with Overweight and Obesity in Free-Living Healthy Subjects

Figure 4

Adjusted odds ratios (OR) of levels of urinary polyphenol biomarkers for overweight/obesity by serum CRP concentrations. Serum CRP concentrations were modeled as restricted cubic splines with three freedom degrees. Multivariable logistic regression models (for overweight/obesity) were adjusted for age (continuous) and gender. The score of urinary polyphenol biomarkers at the 25th percentile was used as reference. The dashed lines represent the 95% confidence intervals.