The epidemiology of multiple sclerosis (MS) has been intensively studied. It is conceptualised
as a complex disease in which genetic and environmental factors act together to cause …

The 2010 McDonald criteria for the diagnosis of multiple sclerosis are widely used in research
and clinical practice. Scientific advances in the past 7 years suggest that they might no …

Objective To generate a national multiple sclerosis (MS) prevalence estimate for the United
States by applying a validated algorithm to multiple administrative health claims (AHC) …

Objective Emerging evidence suggests that comorbidity may influence disability outcomes
in multiple sclerosis (MS); we investigated the association between psychiatric comorbidity …

Background: High-quality epidemiologic data worldwide are needed to improve our
understanding of disease risk, support health policy to meet the diverse needs of people with …

… Ruth Ann Marrie was responsible for the conceptualization and design of the study and
contributed to analysis and interpretation of the data and revising the manuscript for intellectual …

Background Multiple sclerosis (MS) is the most common cause of neurological disability in
young adults worldwide and approximately half of those affected are in Europe. The …

Objective To assess the characteristics of the 6-min walk (6MW) in multiple sclerosis (MS)
subjects of varied disability, and controls. To assess the correlation of 6MW to subjective …

… Ruth Ann Marrie … The data collection form captured general study characteristics as well
as incidence and prevalence estimates (see Marrie et al. ). Each study was critically appraised …

Objective To develop recommendations for disease-modifying therapy (DMT) for multiple
sclerosis (MS). Methods A multidisciplinary panel developed DMT recommendations, …