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 5

Receiver operating characteristic (ROC) curves for overweight/obesity. ROC curves and measures of the area under the curve (AUC) are presented for three multivariable models: (1) clinical model inclusive of traditional risk factors (age, gender, FBG, UA, CREA, CRP, IsoP, hypertension, dyslipidemia, smoking and alcohol drinking status, and physical activity; black solid line); (2) model 1 plus polyphenol-rich diet (red line); and (3) model 2 plus the score of 22 urinary polyphenol biomarkers (green line).