Population based intervention to change back pain beliefs: three year follow up population survey

Abstract
We used computer assisted questionnaires given by telephone interview to a random sample of the population of Victoria and New South Wales in December 2002 (aged between 18 and 65 years inclusive and currently employed for at least four hours a week) using the same methods as before.1 No public health interventions for back pain have taken place in either state since the end of 1999.