There is increasing evidence that in Primary Care patients’ expectations have a significant effect on the treatment they get from their GP (Tomlin et al 1999, Howitt and Armstrong 1999). Mass media campaigns targeting patients have been found to influence professional practice (Grilli et al 2000). However, evaluation of the effect of locally provided patient information has been limited to the effect that it has on patient behaviour (e.g. compliance with dietary advice or medication) and not on the effect in may have on medical practice.