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

Table 2

Odds ratios (95% confidence intervals) for overweight/obesitya.

UnivariableMultivariableb
OR (95% CI)OR (95% CI)

Age1.034 (1.007~1.062)0.0151.068 (1.016~1.123)0.010
Female1.347 (0.603~3.011)0.4681.459 (0.239~8.904)0.682
FBG5.722 (2.250~14.549)<0.0014.063 (1.299~12.710)0.016
UA20.619 (6.780~62.707)0.0011.007 (0.998~1.017)0.114
CREA0.993 (0.966~1.022)0.6460.992 (0.938~1.050)0.791
CRP1.220 (1.014~1.467)0.0351.129 (0.916~1.393)0.255
IsoP1.003 (0.999~1.007)0.1431.002 (0.998~1.007)0.354
Hypertensiona2.394 (0.743~7.714)0.1440.653 (0.132~3.224)0.601
Dyslipidemiaa4.609 (1.782~11.924)0.0028.216 (2.090~32.303)0.003
Current smoker0.365 (0.100~1.327)0.1260.206 (0.031~1.392)0.105
Current drinker0.703 (0.256~1.933)0.4951.008 (0.222~4.586)0.992
High levels of physical activity0.737 (0.324~1.677)0.4670.239 (0.064~0.891)0.033
Polyphenol-rich diet1.391 (0.600~3.226)0.4411.182 (0.329~4.241)0.798
score of 22 urinary polyphenol biomarkers as a continuous variable
 Per score increment0.209 (0.056~0.776)0.0190.036 (0.004~0.358)0.005
score of 22 urinary polyphenol biomarkers as a categorical variable
 T11.0 (referent)1.0 (referent)
 T21.378 (0.555~3.421)0.4890.573 (0.158~2.076)0.397
 T30.369 (0.124~1.095)0.0730.133 (0.027~0.666)0.014
value for trend0.0900.015

FBG: fasting blood glucose; UA: uric acid; CREA: creatinine; CRP: C-reactive protein; IsoP: 8-isoprostane. aDefined according to the criteria of metabolic syndrome from Chinese Diabetes Society (CDS) (2004) for Chinese. bSet of independent variables: age, gender, FBG, UA, CREA, CRP, IsoP, hypertension, dyslipidemia, smoking and alcohol drinking status, high levels of physical activity, polyphenol-rich diet, and score of 22 urinary polyphenol biomarkers as a continuous or categorical variable.