Population based intervention to change back pain beliefs and disability: three part evaluation

Objective To evaluate the effectiveness of a population based, state-wide p ublic health intervention designed to alter beliefs about back pain, influe nce medical management, and reduce disability and costs of compensation. Design Quasi-experimental, non-randomised, non-equivalent, before and after telephone surveys of the general population and postal surveys of general practitioners with an adjacent state as control group and descriptive analy sis of claims database. Setting Two states in Australia. Participants 4730 members of general population before and two and two and a half years after campaign started, in a ratio of 2:1:1; 2556 general Prac titioners before and two years after campaign onset Main outcome measures Back beliefs questionnaire, knowledge and attitude st atements about back pain, incidence of workers' financial compensation clai ms for back problems, rate of days compensated, and medical payments for cl aims related to back pain and other claims. Results In the intervention state beliefs about back pain became more posit ive between successive surveys (mean improvement in questionnaire score 1.9 (95% confidence interval 1.3 to 2.5), P< 0.001 and 3.2 (2.6 to 3.9), P < 0 .001, between baseline and the second and third survey, respectively). Beli efs about back pain also improved among doctors. There was a clear decline in number of claims for back pain, rates of days compensated, and medical p ayments for claims for back pain over the duration of the campaign. Conclusions A population based strategy of provision of positive messages a bout back pain improves population and general practitioner beliefs about b ack pain and seems to influence medical management and reduce disability an d workers' compensation costs related to back pain.