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Retinoids are not linked to risk of multiple sclerosis: a Danish nationwide cohort study

Item Type:Article
Title:Retinoids are not linked to risk of multiple sclerosis: a Danish nationwide cohort study
Creators Name:Cortes-Figueiredo, F. and Nielsen, N.M. and Stenager, E. and Paul, F. and Hallas, J. and Kristensen, K.B.
Abstract:BACKGROUND: Multiple Sclerosis (MS) is a chronic immune-mediated disease of the Central Nervous System with an undetermined etiology. Retinoids may have immunomodulatory effects that favorably influence MS progression. No observational studies have explored the relationship between exposure to retinoids and risk of acquiring MS. METHODS: We performed a nationwide cohort study in the Danish population in the period 1998-2016 comparing MS incidence in three groups: users of systemic retinoids, users of topical retinoids (negative control group) and users of non-retinoid acne drugs (control group). We used data from the Danish Multiple Sclerosis Registry (DMSR), the Danish National Prescription Registry and The Danish National Patient Registry. Linkage was obtained through the personal identification number (CPR number). We addressed confounding by three-way propensity score (PS) matching weights. Additionally, to evaluate a cumulative dose-response effect for systemic retinoids on MS incidence, we conducted a case-control study nested within the cohort. RESULTS: A total of 257,193 users of non-retinoid acne drugs, 130,560 users of topical retinoids, and 75,610 users of systemic retinoids were included. Systemic retinoid use was not associated with a reduced risk of MS compared to non-retinoid acne drugs in crude (HR 0.80 [95% CI, 0.61 to 1.05]) and weighted analyses (HR 0.89 [95% CI, 0.67 to 1.20]). There was no evidence of a cumulative dose-response association between systemic retinoids and MS incidence. CONCLUSIONS: Use of systemic retinoids was not associated with a reduced incidence of MS compared to use of non-retinoid acne drugs in this study.
Keywords:Denmark, Cohort Study, Epidemiology, Multiple Sclerosis, Retinoids
Source:European Journal of Neurology
ISSN:1351-5101
Publisher:Wiley
Volume:2
Number:1
Page Range:247-256
Date:18 January 2022
Official Publication:https://doi.org/10.1111/ene.15116
PubMed:View item in PubMed

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