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Table 7 Content of baseline and follow-up assessments

From: Yoga vs. physical therapy vs. education for chronic low back pain in predominantly minority populations: study protocol for a randomized controlled trial

Measures Baseline 6 weeks 12 weeks 26 weeks 40 weeks 52 weeks
Baseline information
Socio-demographics x      
Expectations and preferences x      
Comorbidities x      
Primary outcomes
Low back pain score x x x x x x
Roland Morris disability (RMDQ) x x x x x x
Secondary outcomes
Pain medication use x x x x x x
Work productivity x x x x x x
Health-related quality of life (SF-36) x x x x x x
Global improvement   x x x x x
Satisfaction with treatment x x x x x x
Treatment-related information
Cost diary   x x x x x
Adverse events   x x x x x
Other LBP treatments x x x x x x
Exploratory outcomes and potential covariates
Fear Avoidance Beliefs (FABQ) x x x x x x
Exercise x x x x x x
Alcohol, drug, smoking x   x    x
Height & weight x   x    x
Pain Self-Efficacy (PSEQ) x   x    x
Pittsburgh Sleep Quality (PSQI) x   x    x
Depression (PHQ-8) x   x    x
Anxiety (GAD-7) x   x    x
Coping Strategies (CSQ) x   x    x
Perceived Stress (PSS) x   x    x