Table 4.4.

Time spent at each level of the disability status scale, among 1099 patients with multiple sclerosis.

Disability status scale	Patients entering a given disability status score grade (number)	Patients worsening (%)a	Time spent at disability status scale grade (mean number of years ± SEM)
1	1037	82	4.1 ± 0.2
2	829	81	2.8 ± 0.1
3	662	82	1.9 ± 0.1
4	536	88	1.2 ± 0.1
5	475	94	1.2 ± 0.1
6	489	60	3.1 ± 0.2
7	306	37	3.8 ± 0.3
8	114	28	2.4 ± 0.4
9	34	41	2.5 ± 0.6

^aPercentage of patients who have reached a given disability status scale grade and progressed to the next level of disability during the study period.

Adapted from Weinshenker et al (1991b)

© 2006