Revised tool Jan. 29, 2000* | Pilot testing analysis (N = 405) R2 = 0.681, R2 (adj) = 0.676† | Tool refinement June 26, 2000 | |||||
---|---|---|---|---|---|---|---|
Criteria, items/levels | No. | % | Score | Weight | Criteria, items/levels | ||
1. | Pain on motion* | 405 | 100 | 1. | Pain on motion | ||
None | 0 | 0 | 0 | 0 | None/mild | ||
Mild | 31 | 8 | 0 | ||||
Moderate | 249 | 61 | 6 | 6 | Moderate | ||
Severe | 125 | 31 | 13 | 13 | Severe | ||
2. | Pain at rest* | 405 | 100 | 2. | Pain at rest | ||
None | 29 | 7 | 0 | 0 | No change | ||
Mild | 160 | 40 | 3 | 3 | |||
Moderate | 191 | 47 | 8 | 8 | |||
Severe | 25 | 6 | 11 | 11 | |||
3. | Ability to walk | 405 | 100 | 3. | Ability to walk without significant pain | ||
> 20 blocks | 13 | 3 | 0 | 0 | > 5 blocks | ||
11–20 blocks | 25 | 6 | 0 | 0 | 1–5 blocks | ||
5–10 blocks | 86 | 21 | 4 | 4 | < 1 block | ||
< 5 blocks | 281 | 70 | 7 | 7 | Household ambulator | ||
4. | Other functional limitations | 405 | 100 | 4. | Other functional limitations | ||
No limitations | 4 | 1 | 0 | 0 | No limitations | ||
Mild limitations | 99 | 24 | 4 | 4 | Mild limitations (able to do most activities with minor modifications or difficulty) | ||
Moderate limitations | 218 | 54 | 11 | 11 | Moderate limitations (able to do most activities but with modification or assistance) | ||
Severe limitations | 84 | 21 | 19 | 19 | Severe limitations (unable to perform most activities) | ||
5. | Abnormal findings (orthopedic only)* | 401 | 100 | 5. | Abnormal findings on physical examination related to affected joint | ||
None | 16 | 4 | 0 | 0 | None/mild | ||
Mild | 122 | 30 | 0 | ||||
Moderate | 178 | 44 | 5 | 5 | Moderate | ||
Severe | 85 | 21 | 8 | 10 | Severe | ||
6. | Potential for progression of disease‡ | 183 | 100 | 6. | Potential for progression of disease documented by radiographic findings | ||
None | 16 | 9 | 0 | 0 | No Change | ||
Mild | 70 | 38 | 4 | 4 | |||
Moderate | 68 | 37 | 11 | 11 | |||
Severe | 29 | 16 | 21 | 20 | |||
7. | Ability to work, give care to dependants, live independently (difficulty must be related to affected joint) | 405 | 100 | 7. | Threat to patient role and independence in society | ||
Not threatened or no difficulties | 14 | 3 | 0 | 0 | Not threatened but more difficult | ||
Not threatened but more difficult | 145 | 36 | 0 | ||||
Threatened but not immediately | 177 | 44 | 10 | 10 | Threatened but not immediately | ||
Immediately threatened or unable | 69 | 17 | 21 | 20 | Immediately threatened or unable |
These items were revised in January 2000. The original items and wording were as follows:
Q1. Pain on motion: none; mild/slight/or occasional; mild–moderate; moderate; moderate–severe; severe.
Q2. Pain at rest: none; mild/slight/or occasional; mild–moderate; moderate; moderate–severe; severe.
Q5. Range of motion on examination: no restriction; mild restriction; moderate restriction; severe restriction.
Q6. Other abnormal findings: none; mild; moderate; severe. (Q5 and Q6 were combined.)
Q7. Multiple joint disease: none; multiple, mild–moderate; multiple, severe. (Deleted from criteria form.)
↵† Regression analysis based on 390 cases with complete data on all variables. In an analysis restricted to primary patients (n = 308), R2 = 0.712, R2 (adjusted) = 0.706.
↵‡ Based on 183 patients scored with the revised tool.