The effectiveness of a posted information package on the beliefs and behavior of musculoskeletal practitioners: The UK chiropractors, osteopaths, and musculoskeletal physiotherapists low back pain managemENT (COMPLeMENT) randomized trial

STUDY DESIGN.: Randomized controlled trial. OBJECTIVE.: To investigate the effect of a printed information package on the low back pain (LBP)-related beliefs and reported behavior of musculoskeletal practitioners (chiropractors, osteopaths, and musculoskeletal physiotherapists) across the United Kingdom. SUMMARY OF BACKGROUND DATA.: A substantial proportion of musculoskeletal practitioners in United Kingdom does not follow current LBP guideline recommendations. METHODS.: In total, 1758 practitioners were randomly allocated to either of the 2 study arms. One arm was posted a printed information package containing guideline recommendations for the management of LBP (n = 876) and the other received no intervention (n = 882). The primary outcome measure consisted of 3 "quality indicators" (activity, work, and bed-rest) relating to a vignette of a patient with LBP, in which responses were dichotomized into either "guideline-inconsistent" or "guideline-consistent." The secondary outcome was the practitioners LBP-related beliefs, measured using the Health Care Providers Pain and Impairment Relationship Scale. Outcomes were measured at baseline and at 6 months. RESULTS.: Follow-up at 6 months was 89. The changes in reported behavior on the quality indicators were as follows: activity, odds ratio (OR) 1.29 (95 confidence interval, 1.03-1.61) and number needed to be treated (NNT), 19 (15-28); work, OR 1.35 (1.07-1.70) and NNT 19 (14-29); and bed-rest, OR 1.31 (0.97-1.76) and NNT 47 (33-103). The composite NNT for a change from guideline-inconsistent to guideline-consistent behavior on at least 1 of the 3 quality indicators was 10 (9-14). LBP-related beliefs were significantly improved in those who were sent the information package (P = 0.002), but only to a small degree (mean difference, 0.884 scale points; 95 confidence interval, 0.319-1.448). CONCLUSION.: Printed educational material can shift LBP-related beliefs and reported behaviors of musculoskeletal practitioners, toward practice that is more in line with guideline recommendations. © 2010, Lippincott Williams & Wilkins