Table 1 Summary of studies using the Performance Scales© 1999-2016
All citations (n = 82) | Forest plots citations (n = 12) | |||
|---|---|---|---|---|
Study Type | n | % | n | % |
Observational | 60 | 73% | 11 | 92% |
Intervention | 5 | 6% | 1 | 8% |
Measurement Validation | 17 | 21% | 0 | 0% |
Design Type | ||||
Cross Sectional | 51 | 62% | 6 | 50% |
Longitudinal | 29 | 35% | 6 | 50% |
Randomized Controlled Trial | 2 | 2% | 0 | 0% |
Participant Source | ||||
NARCOMS | 43 | 52% | 7 | 58% |
Vetrans Health Administration | 10 | 12% | 1 | 8% |
Midwest Chapters, National MS Society | 5 | 6% | 0 | 0% |
Cleveland Clinic Mellen Center | 9 | 11% | 2 | 17% |
Other | 15 | 18% | 2 | 17% |
Funding Sourcea | ||||
Internal/Academic | 8 | 10% | 2 | 17% |
Industry | 21 | 26% | 4 | 33% |
Federal | 25 | 30% | 2 | 17% |
Foundation | 51 | 62% | 8 | 67% |
Not Specified | 11 | 13% | 0 | 0% |