Journal
THERAPEUTIC ADVANCES IN NEUROLOGICAL DISORDERS
Volume 13, Issue -, Pages -Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/1756286420956495
Keywords
age of onset; multiple sclerosis; progressive MS; relapsing MS; sex ratio
Categories
Funding
- German MS Foundation
- German MS Society
- Merck
- Novartis
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Background: Multiple sclerosis (MS) is an inflammatory and neurodegenerative disease whose aetiology is not fully understood. The female sex is clearly predominant, with a sex ratio between 2 and 3. In primary progressive MS the sex ratio almost balances out. Since the age at onset is higher for patients with progressive onset (POMS) than for relapsing onset (ROMS), it can be hypothesized that the age at onset is a decisive factor for the sex ratio. Methods: To address this aspect, we compare clinical and demographic data between females and males for the different disease courses within the population of the German MS Register by the German MS Society. Only patients with complete details in mandatory data items and a follow-up visit since 01. Jan 2018 were included. Results: A total of 18,728 patients were included in our analyses, revealing a female-to-male ratio of 2.6 (2.7 for patients with ROMS and 1.3 for POMS). The age at diagnosis is higher in patients with POMS (43.3 and 42.3 years for females and malesversus32.1 and 33.2 years, respectively). Females irrespective of disease course are statistically significantly more often affected by cognitive impairment (POMS:p = 0.013, ROMS:p = 0.001) and depression (POMS:p = 0.002, ROMS: 0.001) and suffer more often from pain (POMS and ROMS:p < 0.001). Fatigue is significantly more often seen in females with ROMS (p < 0.001) but not in POMS. Females with ROMS retire significantly (p < 0.001) earlier (42.8versus44.2 years) and to a greater extent than males (28versus24%). Disease progression was similar for women and men. Conclusion: Our analysis shows that clinical and demographic data differ more between disease courses than between men and women. For pain, depression and cognitive impairment the female sex is the decisive factor. Whether these factors are responsible for the earlier retirement of females with ROMS is not clear. Appropriate measures for optimization of symptomatic treatment as well as to promote employment should be taken.
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