Table 2.
Description and psychometric properties of self-report questionnaires.a
| Outcome Measure | Description | Reliability | MDC and MCID |
|---|---|---|---|
| Modified Oswestry Disability Index | 10-question condition-specific measurement for individuals with low back pain; involves questions relating to pain and functional limitations | ICC = 0.9035 | MDC = 4-10 points79
MCID = 6 percentage points39 |
| Fear Avoidance Beliefs Questionnaire | Designed to assess beliefs regarding movement and its effects on low back pain; 2 subscales: Work and Physical Activity | 0.64-0.8080 | MDC: Work = 12 points; Physical Activity = 9 points43 |
| Numeric Pain Rating Scale | 11-point scale asking the individual to rate pain level based on severity | 0.7621 | MCID = 2 points16,18,43 |
a
ICC, intraclass correlation coefficient; MDC, minimum detectable change; MCID, minimal clinical important difference.