
| PMC full text: | Published online 2004 Jul 19.   doi:  10.1186/1472-6882-4-9 
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Table 1
Potential Predictor Variables Evaluated in 28 Therapy-Specific Logistic Regression Models
| Dependent Variables for Logistic Regressions | ||||||
| Potential Predictor Variable | High Knowledge of Therapy* | Prior Use of Therapy* | Prior Use of Therapy for Back Pain* | High Expectations of Success of Therapy* | Likelihood of Trying Therapy at No Cost* | Likelihood of Trying Therapy for $10 Co-pay** | 
| Geographic location (Boston vs. Seattle) | X¶ | X | X | X | X | X | 
| Age (65+ vs. < 65) | X | X | X | X | X | X | 
| Gender (female vs. male) | X | X | X | X | X | X | 
| Race (white, non-white) | X | X | X | X | X | X | 
| Education (no college vs. some college) | X | X | X | X | X | X | 
| ≥ 5 years since first back pain | X | X | X | |||
| ≥ 90 days of LBP in last 6 mo. | X | X | X | |||
| High symptom bothersomeness (7 – 10) on a 0 – 10 scale | X | X | X | |||
| High knowledge of therapy (4 or 5) on a 1 – 5 scale | X | X | X | |||
| Prior use of therapy | X | X | X | |||
| Prior use of therapy for back pain | X | X | X | |||
| High expectations of therapy (7 – 10) on a 0 – 10 scale | X | X | ||||
| Medication usage in past week | X | X | ||||
| Prior harm from therapy | X | X | ||||