Subscribe to RSS

DOI: 10.1055/s-0045-1813263
Epidemiology and healthcare access in Brazilian multiple sclerosis patients: insights from the BRANDO database
Authors
Funding The authors declare that the present study was funded by the Brazilian Committee for Treatment and Research in Multiple Sclerosis (BCTRIMS).
Abstract
Background
Multiple sclerosis (MS) is an inflammatory and neurodegenerative disorder whose prevalence varies across Brazil (from 15–27 cases per 100 thousand inhabitants), and the absence of an extensive national study limits the understanding of MS epidemiology in a nation as diverse as Brazil.
Objective
To compare epidemiological data, including healthcare access, among people with MS across four Brazilian regions.
Methods
Data from 2,974 Brazilian MS patients in the Collaborative Latin American Database for Multiple Sclerosis (BRANDO) were analyzed. We assessed demographic and clinical outcomes, as well as healthcare access, to elucidate regional differences.
Results
The cohort was predominantly composed of female patients (72.5%) with MS onset at a mean age of 30.6 years. Regarding the regional differences, there was a lower predominance of female patients (68.7%; p = 0.003) in the Southeast, a higher rate of subjects of mixed ethnicity (p < 0.001) in the Midwest (40.3%) and Northeast (63.7%), higher scores on the Expanded Disability Status Scale (EDSS) in the Northeast (4.0; p < 0.001), a higher prevalence of relapsing-remitting MS (RRMS) in the Southeast and Midwest (87%; p < 0.001), while the Northeast presented (p < 0.001) the highest rates of primary progressive MS (PPMS) and secondary progressive MS (SPMS) (PPMS = 15.8%; SPMS = 18%). The Northeast presented the longest time (5.9 years; p < 0.01) from disease onset until MS diagnosis (range for the other regions = 1.9–3.7 years). And the Midwest showed the shortest time (2.1 years; p < 0.01) from disease onset until first access to disease-modifying therapies (DMTs; range for the other regions = 3.5–5.1 years).
Conclusion
The present is the first nationwide epidemiological study on people with MS in Brazil. It underscores regional epidemiological variations and differences in healthcare access, advocating for tailored approaches in MS management and research.
Keywords
Multiple Sclerosis - Latin America - Epidemiology - Health Inequities - Nervous System Diseases - DemographyData Availability Statement
Data will be available upon request to the corresponding author.
Authors' Contributions
Conceptualization: AD, CR, JB; Data curation: MBW, CR; Formal analysis: MBW, CR; Funding acquisition: AD, CR, JB, NT; Investigation: AD, CT, HKS, DC, MFM, JACD, DSD, OJMN, LP, TF, PG, HSN, MLP, GRP, RC, KCS, CCDD, GDV, GDS, EC, MSP, JB; Methodology: AD, CR, JB, MSP; Project administration: CR, AD, JB; Resources: AD, CT, HKS, DC, MFM, JACD, DSD, OJMN, LP, TF, PG, HSN, MLP, GRP, RC, KCS, CCDD, GDV, GDS, EC, MSP, JB; Software: MBW; Supervision: AD, JB, MLP, DC, MSP; Visualization: CR; Writing - original draft: CR, AD; Writing - review & editing: AD, CR, JB, DC, MLP, MSP, MFM, GRP, OJMN, JACD, PG, GDS.
Editor-in-Chief: Hélio A. G. Teive (ORCID: 0000-0003-2305-1073).
Associate Editor: Douglas Kazutoshi Sato (ORCID: 0000-0002-7695-6020).
On behalf of the Brazilian Committee for Treatment and Research in Multiple Sclerosis (BCTRIMS).
Publication History
Received: 07 June 2025
Accepted: 23 September 2025
Article published online:
22 December 2025
© 2025. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution 4.0 International License, permitting copying and reproduction so long as the original work is given appropriate credit (https://creativecommons.org/licenses/by/4.0/)
Thieme Revinter Publicações Ltda.
Rua Rego Freitas, 175, loja 1, República, São Paulo, SP, CEP 01220-010, Brazil
Alfredo Damasceno, Cintia Ramari, Carlos Tauil, Henry Koiti Sato, Dagoberto Callegaro, Maria Fernanda Mendes, José Artur Costa D'Almeida, Denise Sisterolli Diniz, Osvaldo J. M. Nascimento, Laura Parolin, Thiago Fukuda, Paulo Gama, Herval Soares Neto, Marco Lana-Peixoto, Giordani Rodrigues dos Passos, Rayllene Caetano, Kleber Cavalcante Santos, Caio César Diniz Disserol, Gabriel de Deus Vieira, Guilherme Diogo Silva, Eliana Cunha, Natália Talim, Mario B. Wagner, Milena Sales Pitombeira, Jefferson Becker. Epidemiology and healthcare access in Brazilian multiple sclerosis patients: insights from the BRANDO database. Arq Neuropsiquiatr 2025; 83: s00451813263.
DOI: 10.1055/s-0045-1813263
-
References
- 1 McAlpine D. The benign form of multiple sclerosis. A study based on 241 cases seen within three years of onset and followed up until the tenth year or more of the disease. Brain 1961; 84 (02) 186-203
- 2 Jakimovski D, Bittner S, Zivadinov R. et al. Multiple sclerosis. Lancet 2024; 403 (10422): 183-202
- 3 McKay KA, Ernstsson O, Manouchehrinia A, Olsson T, Hillert J. Determinants of quality of life in pediatric- and adult-onset multiple sclerosis. Neurology 2020; 94 (09) e932-e941
- 4 Compston A, Coles A. Multiple sclerosis. Lancet 2008; 372 (9648) 1502-1517
- 5 Bebo Jr BF, Fox RJ, Lee K, Utz U, Thompson AJ. Landscape of MS patient cohorts and registries: Recommendations for maximizing impact. Mult Scler 2018; 24 (05) 579-586
- 6 Peeters LM, Parciak T, Kalra D. et al. Multiple Sclerosis Data Alliance - A global multi-stakeholder collaboration to scale-up real world data research. Mult Scler Relat Disord 2021; 47: 102634
- 7 Lana-Peixoto MA, Frota ERC, Campos GB, Monteiro LP. Brazilian Committee for Treatment and Research in Multiple Sclerosis. The prevalence of multiple sclerosis in Belo Horizonte, Brazil. Arq Neuro-Psiquiatr 2012; 70 (02) 102-107 × 2012000200006 PubMed
- 8 Passos GRD, Becker J, Varela DL. et al. Prevalence of multiple sclerosis in key cities of Brazil: a study in Passo Fundo, Southern Brazil. Arq Neuropsiquiatr 2021; 79 (08) 692-696
- 9 Moura JA, Teixeira LADC, Tanor W, Lacerda ACR, Mezzarane RA. Prevalence of multiple sclerosis in Brazil: An updated systematic review with meta-analysis. Clin Neurol Neurosurg 2025; 249: 108741
- 10 Campos LAB, Toldrá RC. Intervenções de Terapia Ocupacional com pessoas com esclerose múltipla: revisão integrativa da literatura. Cad Bras Ter Ocup 2019; 27 (04) 885-897
- 11 Glaser A, Butzkueven H, Van der Walt A. et al. Big Multiple Sclerosis Data network: an international registry research network. J Neurol 2024; 271 (06) 3616-3624
- 12 Marrie RA, Cutter GR, Fox RJ, Vollmer T, Tyry T, Salter A. NARCOMS and Other Registries in Multiple Sclerosis: Issues and Insights. Int J MS Care 2021; 23 (06) 276-284
- 13 Collaborative Latin American Database for Multiple Sclerosis (BRANDO) [Internet]. S.l.: Brazilian Committee for Treatment and Research in Multiple Sclerosis (BCTRIMS). 2021–.Available from: https://brando.medbase.com.br/sys/login.php
- 14 Marrie RA, Chataway J, Bierer BE. et al. Enhancing diversity of clinical trial populations in multiple sclerosis. Mult Scler 2023; 29 (09) 1174-1185
- 15 Young CA, Rog DJ, Sharrack B. , et al; Trajectories of Outcome in Neurological Conditions-MS Study Group. Correlates and trajectories of relapses in relapsing-remitting multiple sclerosis. Neurol Sci 2024; ;45(5):2181–2189
- 16 Thompson AJ, Banwell BL, Barkhof F. et al. Diagnosis of multiple sclerosis: 2017 revisions of the McDonald criteria. Lancet Neurol 2018; 17 (02) 162-173
- 17 Langer-Gould AM, Gonzales EG, Smith JB, Li BH, Nelson LM. Racial and Ethnic Disparities in Multiple Sclerosis Prevalence. Neurology 2022; 98 (18) e1818-e1827
- 18 Mascialino G, Gromisch ES, Zemon V, Foley FW. Potential differences in cognition by race/ethnicity among persons with multiple sclerosis in a clinical setting: A preliminary study. NeuroRehabilitation 2019; 44 (03) 445-449
- 19 Belandi I, Gomes I. Censo 2022: pela primeira vez, desde 1991, a maior parte da população do Brasil se declara parda. Agência IBGE Notícias, Rio de Janeiro; 2024 Available from: https://agenciadenoticias.ibge.gov.br/agencia-noticias/2012-agencia-de-noticias/noticias/38719-censo-2022-pela-primeira-vez-desde-1991-a-maior-parte-da-populacao-do-brasil-se-declara-parda
- 20 Mallawaarachchi G, Rog DJ, Das J. Ethnic disparities in the epidemiological and clinical characteristics of multiple sclerosis. Mult Scler Relat Disord 2024; 81: 105153
- 21 Orlando CM, Pérez CA, Agyei P. et al. Social determinants of health and disparate disability accumulation in a cohort of Black, Hispanic, and White patients with multiple sclerosis. Mult Scler 2023; 29 (10) 1304-1315
- 22 dGama PDd, Machado Ld R, Livramento JA. et al. Oligoclonal Bands in Cerebrospinal Fluid of Black Patients with Multiple Sclerosis. Biomed Res Int 2015; ;2015:217961 PubMed
- 23 Hartmann A, Noro F, Bahia PRV. et al. The clinical-radiological paradox in multiple sclerosis: myth or truth?. Arq Neuropsiquiatr 2023; 81 (01) 55-61
- 24 Ruggieri S, Prosperini L, Petracca M. et al. The added value of spinal cord lesions to disability accrual in multiple sclerosis. J Neurol 2023; 270 (10) 4995-5003
- 25 Nathoo N, Zeydan B, Neyal N, Chelf C, Okuda DT, Kantarci OH. Do magnetic resonance imaging features differ between persons with multiple sclerosis of various races and ethnicities?. Front Neurol 2023; 14: 1215774
- 26 Solomon AJ, Marrie RA, Viswanathan S. et al. Global Barriers to the Diagnosis of Multiple Sclerosis: Data From the Multiple Sclerosis International Federation Atlas of MS, Third Edition. Neurology 2023; 101 (06) e624-e635 PubMed
- 27 Santos-Lobato BL, Tomaselli PJ, Santos-Lobato EAV, Cassenote AJF, Cabeça HLS. There is no shortage, but inequality: demographic evolution of neurologists in Brazil (2010-2020). Arq Neuropsiquiatr 2023; 81 (02) 134-145
- 28 Projeto de Avaliação do Desempenho do Sistema de Saúde (PROADESS). Equipamentos de ressonância magnética. Rio de Janeiro: Fiocruz; 2011 [cited 12/05/2025]. Available from: https://www.proadess.icict.fiocruz.br/index.php?pag=fic&cod=Z02&tab=1
