Time frame: Baseline to 3 month follow up (primary endpoint) and 6, 9 and 12 month follow-up
Functional Disability Inventory (FDI) is a validated 15-item self-report measure, developed to assess perceived difficulty in the performance of daily activities in home, school, recreational, and social domains due to pain. Total sum scores are calculated and range from 0 - 60, with higher scores indicating greater functional disability. Clinical reference points are: No/Minimal disability (0 to 12), Mild disability (13 to 20), Moderate disability (21 to 29) and Severe disability (≥30). For this primary outcome, data from this questionnaire was used to compare baseline response to 3 month follow up to examine whether a reduction in disability occurs.
The main outcome measure for this comparison is the difference in baseline and primary endpoint (3 month) FDI scores for each of the three interventions (FIT Teens, CBT, and GAE).