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Arthritis Rheum. 2007 Aug 15;57(6):928-34.

Treatment of older adult patients diagnosed with rheumatoid arthritis: improved but not optimal.

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Stanford University, Palo Alto, California, USA.



The National Committee on Quality Assurance has determined that all patients with rheumatoid arthritis (RA) should be treated with disease-modifying antirheumatic drugs (DMARDs). Our objective was to determine the rate and predictors of DMARD use in a cohort of elderly patients with RA.


We analyzed health care utilization data for 5,864 Medicare beneficiaries with RA who also participated in a state-run pharmaceutical benefit program in Pennsylvania. Patients with RA were defined as those with at least 3 diagnoses of RA (International Classification of Diseases, Ninth Revision code 714.xx) at least 1 week apart who were enrolled in these programs for at least 12 months during 1995-2004. Multivariate logistic regression was used to assess predictors of synthetic or biologic DMARD use in the 12 months after cohort entry.


Thirty percent of patients filled a DMARD prescription during 12 months of followup. Frequency of DMARD use increased steadily over time: 24% received DMARDs in 1996 compared with 43% in 2003 (P for trend <0.001). Of patients with at least 1 rheumatologist visit, 41% received a DMARD in 1996 compared with 70% in 2003 (P < 0.001). After the introduction of biologic DMARDs in 1998, 6% of all patients with RA received a biologic, including 12% who saw a rheumatologist. Patients ages 75-84 were 52% less likely to receive DMARDs (95% confidence interval [95% CI] 46-58%) and patients ages >or=85 were 74% less likely (95% CI 69-79%) compared with patients ages 65-74.


In this cohort of patients in the community with full prescription drug coverage, most patients diagnosed with RA did not receive a DMARD during the 12 months after cohort entry. Older patients and those not seeing a rheumatologist were less likely to receive a DMARD and may provide a target for quality improvement interventions.

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