Endogenous XXXX and @entity626 : a cross-sectional study.

@entity1 @entity626 @entity571 @entity460 @entity14257 @entity461
AIM: Although animal studies have shown that @entity461 ( @entity461 ) analogs can have disease-modifying effect on experimental @entity571 , there is little @entity1 data. This study aimed to analyze the association between endogenous @entity461 and @entity626 in @entity1 . METHODS: This was a cross-sectional study including 5880 @entity1 of The Fifth Korean National Health and Nutrition Examination Survey. Serum intact @entity461 was measured by chemiluminescence assay. @entity626 was defined as a Kellgren-Lawrence grade of >=   2. The association between @entity626 and natural log-transformed @entity461 (lnPTH) was modeled using logistic regression analyses adjusting for age, body mass index categories, @entity460 intake and serum @entity14257 in both sexes. RESULTS: The prevalence of @entity626 tended to be higher in the highest quartile of @entity461 in @entity1 . In @entity1 , there was no clear trend across the quartiles of @entity461 . In multivariable analyses, there was no significant association between lnPTH and @entity626 in either sex (odds ratio [95% confidence interval]): 0.81 (0.64-1.02) in @entity1 and 0.88 (0.67-1.16) in @entity1 . Analyses on symptomatic @entity626 showed no significant association. CONCLUSION: Although there was a trend for a negative association in @entity1 , no statistically significant association was found between endogenous @entity461 and @entity626 .
