1.What proportion of your MS patients have been diagnosed with SPMS?

< 10%

11-25%

26-50%

>50%

2.What proportion of your MS patients have suspected SPMS?

< 10%

11-25%

26-50%

>50%

3.What is the estimated time from suspected to diagnosed SPMS?

< 1 month

2-6 months

7-12 months

1-2 years

> 2 years

4.What proportion of your newly-diagnosed SPMS patients have active disease (relapses and/or new MRI lesions)?

< 10%

11-20%

21-30%

31-40%

51-50%

>50%

5.What is your #1 criterion for an SPMS diagnosis?

No relapses in previous 2 years and 1-point change in EDSS

No new MRI lesions in previous 2 years and 1-point change in EDSS

No relapses or MRI lesions in previous 1 year and 1-point change in EDSS

1-point change in EDSS

Sustained clinical worsening (e.g. fatigue, walking speed, cognition, QoL) over the past 1-2 years

Other

6.How do you determine progressive accumulation of disability in practice?

1-point EDSS change confirmed at 3 months

1-point EDSS change confirmed at 6 months

1-point EDSS change confirmed at 12 months

>20% worsening on T25FW and/or 9HPT

Other measures (e.g. new unemployment, symptoms, number of FS involved, etc.)

Other