How effective are interventions to promote informed consent for patients undergoing surgical and other invasive health care treatments and procedures?
There were high levels of heterogeneity associated with many of the main analyses. Only one study attempted to measure the primary outcome, which was informed consent as a unified concept, but this study was at high risk of bias.
Research suggests that when informed consent is obtained, the information provided by health care professionals is often unclear or insufficient, leading to misunderstanding, a worse treatment response and even litigation. A number of interventions have been developed to improve the quality of information provided to patients, including written pamphlets, videos and websites.