Investigating Associations Between Access to Rheumatology Care, Treatment, Continuous Care, and Healthcare Utilization and Costs Among Older Individuals With Rheumatoid Arthritis

Author:

Barber Claire E.H.ORCID,Lacaille DianeORCID,Croxford RuthORCID,Barnabe CherylORCID,Marshall Deborah A.ORCID,Abrahamowicz MichalORCID,Xie HuiORCID,Aviña-Zubieta J. AntonioORCID,Esdaile John M.ORCID,Hazlewood Glen S.ORCID,Faris PeterORCID,Katz StevenORCID,MacMullan Paul,Mosher Dianne,Widdifield JessicaORCID

Abstract

ObjectiveTo examine the association between rheumatologist access, early treatment, and ongoing care of older-onset rheumatoid arthritis (RA) and healthcare utilization and costs following diagnosis.MethodsWe analyzed data from a population-based inception cohort of individuals aged > 65 years with RA in Ontario, Canada, diagnosed between 2002 and 2014 with follow-up to 2019. We assessed 4 performance measures in the first 4 years following diagnosis, including access to rheumatology care, yearly follow-up, timely treatment, and ongoing treatment with a disease-modifying antirheumatic drug. We examined annual healthcare utilization, mean direct healthcare costs, and whether the performance measures were associated with costs in year 5.ResultsA total of 13,293 individuals met inclusion criteria. The mean age was 73.7 (SD 5.7) years and 68% were female. Total mean direct healthcare cost per individual increased annually and was CAD $13,929 in year 5. All 4 performance measures were met for 35% of individuals. In multivariable analyses, costs for not meeting access to rheumatology care and timely treatment performance measures were 20% (95% CI 8-32) and 6% (95% CI 1-12) higher, respectively, than where those measures were met. The main driver of cost savings among individuals meeting all 4 performance measures were from lower complex continuing care, home care, and long-term care costs, as well as fewer hospitalizations and emergency visits.ConclusionAccess to rheumatologists for RA diagnosis, timely treatment, and ongoing care are associated with lower total healthcare costs at 5 years. Investments in improving access to care may be associated with long-term health system savings.

Publisher

The Journal of Rheumatology

Subject

Immunology,Immunology and Allergy,Rheumatology

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