Effects of Motivational Interviewing on Self-Efficacy and Standardized Low Back Pain Outcomes in Patients With Chronic Back Pain"

This is a pilot study to evaluate the impact of MI on self-efficacy and outcomes for chronic low back pain.

Design Prospective randomized, single blind pilot, controlled study. Patients will be referred from E10 and the Spine Center by contacting the study coordinator. The Coordinator will meet with potential participants, determine if they meet the inclusion and exclusion criteria, obtain informed consent, assess self-efficacy using the Stanford Self efficacy instrument, use en bloc randomization for self-efficacy to the experimental and control group. They will then complete the SF-12, a VAS pain scale, and the Roland and Morris Disability questionnaire, a few questions about employment status and 1 question about satisfaction with care.

The experimental group(goal n=20) will be treated by physical therapists that have been trained in motivational interviewing techniques by a PhD and a sample of these sessions will be videotaped for validation purposes. The control group(goal n=20) will receive PT from any PT as per the normal standard of care.

Both the experimental and control group will complete an additional self-efficacy instrument prior to leaving. Six weeks after the patients participate in a motivational interview session they will be mailed a repeat of all of the previously mentioned instruments including the self-efficacy tool. Patients who return the completed instruments will receive forty dollars. If effect size is small, this pilot study will be underpowered, if a clinically significant trend is observed additional funding will be sought and the experimental and control n will be expanded to 64.

Setting Tertiary academic medical center Participants Referrals from a Spine Center, or a large outpatient Physical Medicine and Rehabilitation practice with at least three months of chronic low back pain.

Primary Outcome Measure Self-efficacy for Managing Chronic disease 6-Item scale

Main Outcome Measures Roland and Morris Disability Questionnaire Pain VAS Satisfaction with care question Disability status question SF-12 Exclusion Criteria Medical /legal involvement Active workers compensation Infection or tumor in spine Active systemic disease in the lumbar spine Multiple other musculoskeletal problems that require Treatment Patients receiving more than 2 PT sessions

Inclusion Criteria Three or more months of low back pain Ability to read, write and speak English