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Arthritis Rheum. 2004 Jun 15;51(3):321-5.

A retrospective study of the relationship between serum urate level and recurrent attacks of gouty arthritis: evidence for reduction of recurrent gouty arthritis with antihyperuricemic therapy.

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Tokyo Women's Medical University, Tokyo, Japan.



To evaluate the proposed relationship between persistent reduction of serum urate into the subsaturating range and reduction in the frequency of acute gouty attacks.


We retrospectively examined data derived from 267 patients who had experienced at least 1 gouty attack before their first visit to our clinic. Serum urate concentration, history of recurrent gouty attacks, and information about antihyperuricemic drug use were collected on each visit for up to 3 years from the first visit of each patient. Data derived from visits >1 year after study entry were subjected to statistical analysis.


When adjusted for baseline serum urate level and the number of gouty attacks prior to study entry, reduction of followup serum urate concentration and antihyperuricemic drug use were each significantly associated with a reduced risk of gouty attacks (odds ratio [OR] 0.42, 95% confidence interval [95% CI] 0.31-0.57; OR 0.22, 95% CI 0.10-0.47, respectively).


The data indicate that reduction of serum urate concentrations to 6 mg/dl or lower will eventually result in a reduced frequency or prevention of future gouty attacks.

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