Σάββατο, 10 Ιουνίου 2017

Sex-specific association between serum uric acid and self-reported snoring in rural China: a cross-sectional study

Abstract

Purpose

Until now, information has been rare on the association of serum uric acid (SUA) with self-reported snoring. Therefore, the purpose of this study was to explore the sex-specific relationship between SUA and self-reported snoring in a general Chinese population.

Methods

A large cross-sectional study of 10,912 participants aged ≥35 years old were recruited from rural areas of Liaoning Province in China during 2012 to 2013. SUA were divided into quartiles separated for males and females. Anthropometric measurements and blood biochemical indexes were examined according to standard protocols. Sleep duration and self-reported snoring status were investigated by trained personnel using a structured questionnaire.

Results

The prevalence of self-reported snoring was 37.9% (n = 2197) among females and 47.4% (n = 2420) among males, respectively. The proportion of self-reported snoring presented a significant linear increase across the quartile of SUA level in both sexes. In multivariate logistic regression analysis adjusted for possible confounders, the odds ratio (OR) for SUA with regard to self-reported snoring was significantly higher in females. The OR of self-reported snoring associated with per 1 SD increase in SUA was 1.208 (95%CI 1.118–1.305, P<0.001). The highest quartile of SUA (>293 μmol/L) conferred an independently increased risk for self-reported snoring with OR of 1.643 (95%CI 1.384–1.950, p < 0.001) compared to the lowest quartile of SUA (<209 μmol/L). However, there were no significant relationships between SUA and self-reported snoring among males in all the models.

Conclusions

Our study showed that in rural China, SUA was positively correlated with an increased risk for self-reported snoring in females but not in males. The strong association of SUA levels with self-reported snoring in females emphasizes the necessity of stratifying the sex in investigations of self-reported snoring and encourages exploration of SUA as an effective clinical tool of self-reported snoring risk.



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