Assessment of Definitions of Sustained Disease Progression in Relapsing-Remitting Multiple Sclerosis

Figure 4

Time to sustained progression stratified by baseline EDSS value. Colors of Kaplan-Meier curve are based on baseline EDSS value: EDSS  =  0: red, EDSS  =  1/1.5: orange, EDSS   =  2/2.5: green, EDSS  =  3/3.5: blue, EDSS  =  4–5.5: black. Progression definition for each plot: (a) D1, (b) D2, (c) D3, and (d) D4.

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(b)

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