Multiple Sclerosis in Older Adults: The Clinical Profile and Impact of Interferon Beta Treatment

Figure 2

Selection of the interferon beta-treated and untreated cohorts aged ≥50 at interferon beta eligibility date. BCMS clinic, British Columbia Multiple Sclerosis clinic; DMD, disease-modifying drug; EDSS, Expanded Disability Status Scale; RRMS, relapsing-remitting multiple sclerosis; and SPMS, secondary progressive multiple sclerosis.The sum of the individual reasons (numbers) exceeds the total number of patients in some boxes because some patients met more than one condition.