Abstract
BackgroundThere is a lack information regarding risk factors associated with worse COVID-19 outcomes in patients with multiple sclerosis (MS) in the MENA region. MethodsThis is a multicenter, retrospective cohort study that included all MS patients with a suspected or confirmed COVID-19 infection using the MENACTRIMS registry. The association of demographics, disease characteristics, and use of disease-modifying therapies (DMTs) with outcomes and severity of COVID-19 were evaluated by multivariate logistic model. ResultsA total of 600 MS patients with confirmed (n = 542) or highly suspected (n = 58) COVID-19 were analyzed. Seventy-three patients (12.2 %) had a COVID-19 severity score of ≥3 on a 7-point ordinal scale (ranging from 1 [not hospitalized with no limitations on activities] to 7 [death] with a cutoff at 3 [hospitalized and not requiring supplemental oxygen]), and 15 patients (2.5 %) died. Out of 73 patients with a severity score ≥3, 90.4 % were on DMTs; 50.6 % of them were on anti-CD20, including ocrelizumab and rituximab. Multivariate logistic regression showed that older age (odds ratio per 10 years, 1.4 [95 %CI, 1.0–1.8]), disability (OR for EDSS 3.0–5.5, 2.9 [95 %CI. 1.5–5.7], OR for EDSS ≥6.0, 2.3 [95 %CI. 1.0–5.1]), obesity (OR, 3.0 [95 %CI, 1.5–6.0]), and treatment with rituximab (OR, 9.0 [95 %CI, 3.1–25.3]) or off-label immunosuppressive medications (OR, 5.6 [95 %CI. 1.1–27.8]) were risk factors for moderate or severe COVID-19. ConclusionIn this registry-based study of MS patients, age, sex, EDSS, obesity, progressive MS were risk factors for severe COVID-19. Moreover, there was an association found between exposure to anti-CD20 DMTs and COVID-19 severity.
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