Key clinical point: Women vs men with multiple sclerosis (MS) showed greater inflammatory disease activity up to menopausal age, whereas men vs women with MS showed greater disability accrual.
Major finding: Women vs men had a 16% higher relapse rate and a higher estimated marginal mean of annualized relapse rate (0.32 vs 0.28; P < .001); however, the difference disappeared after the age of 50 years. The deterioration in the Expanded Disability Status Scale (EDSS) points was higher in men vs women (0.065 vs 0.049 EDSS points per year; P = .0017), with men at a higher risk of reaching EDSS 4 ( P < .001).
Study details: Findings are from an analysis of 9647 patients (3028 men and 6619 women) with MS from the Danish MS registry (DMSR) who received disease-modifying therapy and were followed-up for at least 1 year and two control visits.
Disclosures: The DMSR was funded by the Danish MS Society. M Magyari declared receiving consulting and speakers’ fees and serving on scientific advisory boards for various sources.
Source: Magyari M et al. Quantitative effect of sex on disease activity and disability accumulation in multiple sclerosis. J Neurol Neurosurg Psychiatry. 2022 (Apr 7). Doi: 10.1136/jnnp-2022-328994