Table 3 Relationship between raw change scores and original scale scores.
Raw change scores (0–100 scale) | Original scale change score | ||||||
|---|---|---|---|---|---|---|---|
| Â | ODI | RMQ | LBPRSdisability | SF36 (pf) | LBPRSpain | SF36 (bp)* | NRSpain |
10 | 10 | 2.3 | 3 | 2 | 6 | 1 | 1 |
20 | 20 | 4.6 | 6 | 4 | 12 | 2 | 2 |
30 | 30 | 6.9 | 9 | 6 | 18 | 3 | 3 |
40 | 40 | 9.2 | 12 | 8 | 24 | 4 | 4 |
50 | 50 | 11.5 | 15 | 10 | 30 | 5 | 5 |
60 | 60 | 13.8 | 18 | 12 | 36 | 6 | 6 |
70 | 70 | 16.1 | 21 | 14 | 42 | 7 | 7 |
80 | 80 | 18.4 | 24 | 16 | 48 | 8 | 8 |
90 | 90 | 20.7 | 27 | 18 | 54 | 9 | 9 |
100 | 100 | 23.0 | 30 | 20 | 60 | 10 | 10 |