Treatment and Healthcare Cost Among Patients with Hip or Knee Osteoarthritis: A Cross-sectional Study Using a Real-world Claims Database in Japan Between 2013 and 2019.

Although a considerable change in total healthcare cost was not observed in our study, the contents of medical treatment and cost breakdown were greatly altered due to the treatment and cost for OA itself, and the treatment and cost for comorbidities. Similar studies to investigate such a trend may help predict necessary resources and social needs. Thus, further investigation utilizing other databases is needed.