Table 1.

Summary statistics of patient demographics

Study characteristics, median (IQR) or N (percent)
All recorded observation
pwMS	1,787
Females	1,284 (71.9%)
Age of onset	30.3 (24–38.3)
Ever prescribed a DMT	628 (35.1%)
Number of EDSS observation per person	8 (3–16)
Time between EDSS observations, years	0.38 (0.15–0.84)
Follow-up time, years	6.9 (2.2–12.5)
Prospectively followed for ≥5 years	1,048 (58.7%)
Prospectively followed for ≥10 years	660 (36.9%)
First recorded observation
EDSS score: median	3.5 (2–6)
On DMT	110 (6.2%)
Time since onset, years	7.33 (1.74–17.74)
Last recorded observation
EDSS score: median	5.5 (2.5–6.5)
On DMT	383 (21.4%)
Time since onset, years	16.66 (8.92–27.17)

SD, standard deviation; EDSS, Expanded Disability Status Scale; DMT, disease modifying therapy; N, number of observations.