Figure 1From: Risk factors for depressed mood amongst a community dwelling older age population in England: cross-sectional survey data from the PRO-AGE study Derivation of the analytical samples from the PRO-AGE study: a randomised controlled trial of Health Risk Appraisal for older persons based in general practice*. *For further information on trial design see reference 13. HRA-O = Health Risk Appraisal for Older persons.Back to article page