Comorbidity and mortality in adults with juvenile idiopathic arthritis: a nationwide Norwegian register-based matched cohort study.

ABSTRACT:

Objectives

This population-based study assesses comorbidities, autoimmune conditions and all-cause mortality in [1] adults with juvenile idiopathic arthritis (JIA) against general population comparators and [2] adults with JIA with vs without recent disease-modifying anti-rheumatic drug (DMARD) exposure.

Methods

We included adults who, between 2009 and 2024, had ≥2 specialist health contacts with a JIA-specific ICD-10 code in the mandatory Norwegian Patient Registry (NPR). Each case was matched randomly, by age, gender and county of residence, to 10 general population comparators at the time of receiving the second JIA diagnosis in adulthood. We compared 5-year retrospective comorbidity prevalences in descriptive analyses and prospective all-cause mortality in [1] adults wit

SUBMITTER: Bardan I 

PROVIDER: S-EPMC13633849 | biostudies-literature | 2026 Oct

REPOSITORIES: biostudies-literature