Longitudinal Study of Multiple Sclerosis Patients' Diagnosis Age and Relapse Rates
In a study of 3994 MS patients, those diagnosed early (EOMS) showed a 27% higher risk of experiencing their first post-diagnosis relapse compared to those diagnosed later. Additionally, older diagnosis age was associated with a more progressive form of the disease and higher initial disability scores.
- Tags
- #MSResearch
- Most relevant to
- —
- Human efficacy
- Not established from this source
- Mechanism
- Not reported
- Evidence strength
- Limited
- Outcome
- Not reported
Why it matters
These findings suggest that age at diagnosis could influence relapse rates and disease progression in MS patients, highlighting the need for tailored strategies based on diagnosis age.
What this does not prove
The study’s observational design and issues with follow-up limit the ability to definitively establish cause-and-effect relationships.
Next milestone
No next milestone was established from the available source.
Study facts
- Study design
- Observational
- Participants / samples
- 3994 · total patients included in the study
- Randomised
- Not reported
- Controlled
- Not reported
- Primary endpoint met
- Not reported
- Relevant MS type
- Not reported
- Publication date
- 2026-10-09
- Evidence reviewed
- Abstract only
- Regulatory approval
- Not reported
- Research areas
- Not classified
- Biological target
- Not reported
- Pathway
- Not reported
- Population
- Patients with MS categorized by diagnosis age (EOMS, AOMS, LOMS)
- Size of effect
- adjusted HR: 1.27, 95% CI: 1.05-1.54
- Secondary endpoints
- Not reported
- MRI endpoints
- Not reported
- Biomarkers
- Not reported
- Safety
- Not reported
Original sources
- Primary evidenceAssociation of Diagnosis Age with Clinical Characteristics and MRI Findings in Multiple Sclerosis. ↗DOI: 10.3390/neurosci7050111
Supporting passages (12)
study designThis observational study included patients with MS
subjectsstudy included patients with MS
speciespatients with MS
sample sizeAmong 3994 patients
sample size basisMETHODS: This observational study included patients with MS treated at two tertiary centers in Isfahan, Iran, combining a retrospective review of clinical records with a cross-sectional assessment at the most recent study visit.
publication date2026-10-09
primary endpointtime to first post-diagnosis relapse
findingsEOMS had a higher hazard of first post-diagnosis relapse (adjusted HR: 1.27, 95% CI: 1.05-1.54) and more frequent enhancing brain lesions.
limitationsProgressive MS became more common with increasing diagnosis age, largely reflecting PPMS, although unequal follow-up and last-visit classification limit causal interpretation.
populationPatients were categorized as EOMS (MS diagnosis at ≤18 years), AOMS, or LOMS (diagnosis at or after 50 years) according to age at diagnosis.
effect sizeadjusted HR: 1.27, 95% CI: 1.05-1.54
peer reviewedPublication types: Journal Article
AI assessment, not yet reviewed by a person · version 1 · Community votes are separate from evidence review.