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Self reported stressful life events and exacerbations in multiple sclerosis: prospective study
D Buljevac1, W C J Hop, W Reedeker
1Department of Neurology, Erasmus MC, Postbox 2040, 3000 CA Rotterdam, Netherlands.
BMJ (Clinical Research Ed.)
|September 23, 2003
Summary
Stressful life events significantly increase the risk of multiple sclerosis (MS) relapses. This stress-induced increase in MS exacerbations is independent of infections.
Area of Science:
- Neuroscience
- Epidemiology
- Psychoneuroimmunology
Background:
- Relapsing-remitting multiple sclerosis (RRMS) is characterized by unpredictable exacerbations.
- Identifying triggers for MS relapses is crucial for disease management.
- The role of psychological stress in MS disease activity requires further investigation.
Purpose of the Study:
- To investigate the association between self-reported stressful life events and the occurrence of exacerbations in patients with RRMS.
- To determine if stress-related exacerbations are independent of infection-induced relapses.
Main Methods:
- A longitudinal, prospective cohort study was conducted with 73 RRMS patients (aged 18-55) in the Netherlands.
- Patients had mild to moderate disability (EDSS 0-6.0) and a history of recent relapses.
- Stressful life events and disease activity (exacerbations, infections) were monitored over an average follow-up of 1.4 years.
Main Results:
- 96% of patients reported at least one non-MS-related stressful event.
- Stress was associated with a doubling of the exacerbation rate (RR 2.2, P=0.014) in the subsequent four weeks.
- Infections also increased exacerbation risk (RR 3.0), but this effect was independent of stress.
Conclusions:
- Psychological stress is a significant factor associated with increased exacerbations in RRMS.
- The impact of stress on MS relapses is distinct from the exacerbation-triggering effect of infections.
- These findings highlight the importance of stress management in the comprehensive care of MS patients.