Abstract
ObjectiveTo examine prescribing of drugs treating or exacerbating restless legs syndrome (RLS) during U.S. physician office visits for RLS for the years 2007–2015; and to assess potential prescribing predictors of these drugs. MethodsUsing the National Ambulatory Medical Care Survey data, we conducted a retrospective cross-sectional study. We calculated weighted percentages of RLS-related office visits associated with RLS treatment drugs (alpha-2-delta ligands, dopamine agonists, and other drugs used for RLS) and exacerbating drugs. Using logistic regression, we examined the adjusted association between potential predictors and prescribing of major RLS treatment (dopamine agonists and alpha-2-delta ligands) and exacerbating drugs. ResultsA total of 456 RLS-related office visits were included for analysis, representing approximately 9.9 million visits. The weighted percentages of visits with dopamine agonists (excluding levodopa) decreased from 50% to 22% (RR 0.44; 95% CI 0.26, 0.77). A visit to a neurologist was associated with a 76% increase in prescribing of the major RLS treatment drugs compared with a visit to a family/general or internal medicine physician (RR 1.76; 95% CI 1.29, 2.42). RLS exacerbating drugs were listed in 28% (95% CI 21–36) of RLS-related visits, mostly for antidepressants (83%). Younger age groups (18–44 and 45–64) were predictors of RLS exacerbating drug prescribing, compared with the older age group (RR 2.46; RR 2.00, respectively). ConclusionPrescribing of dopamine agonists during RLS-related visits decreased during 2007–2015, but prescribing of RLS exacerbating drugs remained high. More investigation is necessary concerning whether clinicians assess the appropriateness of RLS exacerbating drugs for RLS patients before newly prescribing or continuing those drugs. Also, future research would need to investigate what factors contribute to the difference in the RLS treatment prescribing patterns between neurologists and family/general or internal medicine physicians.
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