Clinical effectiveness of a patient decision aid to improve decision quality and glycaemic control in people with diabetes making treatment choices: a cluster randomised controlled trial (PANDAs) in general practice.

Other indicators of decision quality used in the study also demonstrated an improvement when PANDAs was used in consultations—there was, for example, a highly significant difference in the knowledge of people about which particular treatment choice had the greatest chance of lowering blood sugar in those who used the decision aid—although this was not the case when the chance of insulin in lowering complications was considered—here no difference in knowledge was observed.

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