Abstract:
OBJECTIVE:To examine how urate concentrations are related to the risk of having possible REM sleep behavior disorder (pRBD) in a community-based cohort. METHODS:The study included 12,923 Chinese adults of the Kailuan Study, free of Parkinson disease (PD) and dementia. Plasma urate concentrations were measured in 2006, 2008, and 2010. Cumulative average urate concentration was used as primary exposure. In 2012, we determined pRBD status using a validated RBD questionnaire-Hong Kong (RBDQ-HK). Logistic regression analysis was performed to estimate the association between urate concentrations during 2006-2010 and odds of having pRBD in 2012 or pRBD case with symptom onset within 1 year. RESULTS:Higher average urate concentrations were associated with a lower odds of pRBD (P-trend <0.001). The adjusted odds ratio (OR), for the highest versus lowest urate quintiles, was 0.43 (95% confidence intervals (CIs) 0.32-0.57). Significant association was consistently observed when we examined the association of a single urate assessment (2006 or 2010) or the rate of change in urate concentrations during 2006-2010 with pRBD (P-trend <0.001 for all). However, restricting to pRBD onset during 2011-2012, we observed a nonsignificant trend between high urate concentration and high odds of pRBD (P-trend = 0.09). INTERPRETATION:Higher average urate concentrations were associated with a lower likelihood of having pRBD, but not new-onset pRBD. Because of its observational study design, the result should be interpreted with caution due to the possibility of residual confounding.
journal_name
Ann Clin Transl Neuroljournal_title
Annals of clinical and translational neurologyauthors
Shen Y,Li J,Schwarzschild M,Pavlova M,He S,Ascherio A,Wu S,Cui L,Gao Xdoi
10.1002/acn3.50929subject
Has Abstractpub_date
2019-12-01 00:00:00pages
2368-2376issue
12issn
2328-9503journal_volume
6pub_type
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