Errors in Table 2 and Table 3

In the Original Investigation titled “Association of Sustained Immunotherapy With Disability Outcomes in Patients With Active Secondary Progressive Multiple Sclerosis,”¹ published online July 27, 2020, there were errors in Table 2 and Table 3. In each table, the variable given in the first column as “Proportion of patients with early RRMS receiving DMT (per 25% increase)” should have been “Proportion of time spent receiving DMTs during early RRMS (per 25% increase),” and the variable given as “Proportion of patients with SPMS receiving DMT (per 25% increase)” should have been “Proportion of time spent receiving DMTs during SPMS (per 25% increase).” This article was corrected online.