Table 3 Key Content of Baseline and Follow-up Assessments
Measures | Baseline | 2-month | 6-month |
|---|---|---|---|
Baseline Characteristics | |||
 Patient characteristics: education, income, employment). (Age, gender, race, and ethnicity extracted from EHR) | x |  |  |
 Back pain problem (duration, pain elsewhere) | x |  |  |
 Risk of Poor Outcome (STarT Back tool) | x | x | x |
Primary Outcomes | |||
 Back pain-related physical function (RMDQ) | x | x | x |
 Back pain severity (0–10 scale) | x | x | x |
Secondary Outcomes | |||
 Depression (PHQ-8) | x | x | x |
 Anxiety (GAD-7) | x | x | x |
 Fear of movement (TKS-10 item version) | x | x | x |
 Global improvement (PGIC) |  | x | x |
 Self-efficacy (PSEQ) | x | x | x |
 Patient satisfaction with caring, information, treatment effectiveness | x | x | x |
 Work loss in past 7 days due to LBP (hours); Effect on work productivity (0 to 10 scale) (2 items from WPAI) | x | x | x |
Treatment-Related Information | |||
 Helpfulness of treatments recommended by PCPs |  | x | x |
 Medications used in past week; change in medication use over time | x | x | x |
 Out-of-pocket expenses |  | x | x |