Acta Diabetologica

, Volume 50, Issue 3, pp 417–422

Total bilirubin is inversely associated with metabolic syndrome but not a risk factor for metabolic syndrome in Japanese men and women

Original Article

Abstract

Serum total bilirubin (TB) is a potent antioxidant and inversely associated with metabolic syndrome (MetS) in Asian populations. However, there has been no study which is aimed to investigate whether TB is a risk factor for MetS or not. We investigated cross-sectional and longitudinal associations between TB and MetS in 2,435 Japanese men and 1,436 Japanese women. The odds ratios [95 % confidence interval (CI)] of coexisting MetS for each 1 SD increase in log TB were 0.850 (0.754–0.958) (p = 0.008) in men and 0.809 (0.656–0.998) (p = 0.047) in women adjusted for sex, age, smoking, and other confounding covariates. Those for the third and fourth quartiles of TB compared with the lowest quartile were 0.720 (0.537–0.965) (p = 0.028) and 0.737 (0.530–1.052) (p = 0.095), respectively, in men and 0.822 (0.473–1.427) (p = 0.486) and 0.704 (0.362–1.369) (p = 0.301), respectively, in women. There was a tendency that TB and MetS changed inversely to each other. The similarly adjusted hazard ratios of developing MetS for each 1 SD increase in log TB and for the higher quartiles of TB compared with the lowest quartile were not significant either in men or in women. TB is inversely associated with MetS but not a risk factor for MetS in Japanese men and women.

Keywords

Bilirubin Metabolic syndrome Oxidative stress Risk factor 

Supplementary material

592_2012_447_MOESM1_ESM.jpg (44 kb)
Supplementary material 1 (JPEG 44 kb)

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Copyright information

© Springer-Verlag Italia 2012

Authors and Affiliations

  1. 1.Medical Check-up CenterTachikawa Medical CenterNagaokaJapan
  2. 2.Department of Research and DevelopmentTachikawa Medical CenterNagaokaJapan

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