Patient Decision Aids

Decision aids are intended to help people participate in decisions that involve weighing the benefits and harms of treatment options often with scientific uncertainty. A recent Cochrane Review "Decision Aids for people facing health treatment or screening decisions",  found that there is  high-quality evidence that decision aids compared to usual care improve people's knowledge regarding options, and reduce conflict related to feeling uninformed and unclear about their personal values.
The Health Knowledge Network has also published an Evidence Bulletin on the same topic.