Bone health in juvenile idiopathic arthritis compared with controls based on a Norwegian observational study
Authors' conclusion
BMD Z-scores in JIA were similar to controls and positively associated with physical activity.
Study context
- Population
- Norwegian children with juvenile idiopathic arthritis (JIA) and age- and sex-matched controls (NorJIA study); median age 14.7 years at visit 2matched controls
- Participants
- 205 vs 125
- Exposure
- JIA vs age- and sex-matched controls
- JIAn = 205
- Controlsn = 125reference
- Outcome
- BMD Z-score L1-L4 measured by DXA, adjusted for bone age
- Follow-up
- Visit 2
Methodological detailsmulticentre, age-matched and sex-matched controls
- Multicentre
- Age-matched and sex-matched controls
Main finding
As reported in the abstract
Mean BMD Z-score L1-L4
JIA
0.0
mean · 95% CI −0.1–0.1
Controls
0.1
mean · 95% CI −0.1–0.3
Observational data: associations, not effects.
Further findings
Mean
Low activity (JIA)
−0.3(95% CI −0.6–0.0)
High activity (JIA)
0.2(95% CI 0.0–0.4)
- Robust association between physical activity levels and BMD; similar trend in controls
Physical activity
- Children with JIA were as physically active as controls
Original publication
Bone health in juvenile idiopathic arthritis compared with controls based on a Norwegian observational study. RMD Open. Published 19 June 2025. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →