Comparison of clinical practices during the transitional and young adult phases between patients with oligoarticular/polyarticular juvenile idiopathic arthritis and those with rheumatoid arthritis in Japan.

ABSTRACT:

Background

Juvenile idiopathic arthritis (JIA) is a chronic inflammatory condition that frequently persists into adulthood, posing long-term challenges in disease control and quality of life. However, clinical management during the transitional and young adult phases remains insufficiently characterized, especially in comparison with adult-onset rheumatoid arthritis (RA). This study aimed to compare disease activity, medication use, and treatment practices between patients with oligoarticular/polyarticular JIA and those with RA, focusing on individuals aged 16-30 years.

Methods

Data were derived from two nationwide multicenter databases in Japan-NinJa (National Database of Rheumatic Diseases in Japan) for RA and CoNinJa (a pediatric counterpart of NinJa) for JIA. A total of

SUBMITTER: Mori S 

PROVIDER: S-EPMC12642359 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature