Table 4.1.
Distribution of patients (%) in relation to disability status scale (DSS) scores according to time periods of disease duration (years), among 209 patients with multiple sclerosis. Only observed data are taken into consideration. Importance of adjustment of the data for death.
| Disease duration (years) |
||||||
|---|---|---|---|---|---|---|
| 0–5 |
6–10 |
11–15 |
16–20 |
21–25 |
>25 |
|
| Number of patients | 42 | 50 | 28 | 31 | 27 | 31 |
| Disability | ||||||
| Not adjusted | ||||||
| DSS 0–2 | 83 | 46 | 43 | 35 | 30 | 26 |
| DSS 3–5 | 14 | 26 | 25 | 32 | 33 | 35 |
| DSS 6–10 | 2 | 28 | 32 | 32 | 37 | 39 |
| Adjusteda | ||||||
| DSS 0–2 | 83 | 46 | 41 | 32 | 23 | 14 |
| DSS 3–5 | 14 | 26 | 25 | 29 | 25 | 20 |
| DSS 6–10 | 2 | 28 | 34 | 39 | 52 | 66 |
a
Adjusted percentages after the addition to the DSS 6–10 group of the estimated number of multiple sclerosis-related deaths for a given disease duration within a similar local population of patients with multiple sclerosis.
Adapted from Miller et al (1992a)
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