Despite this, considerable uncertainty still remains over i) which policies work best in delivering safe, effective health care that provides a good patient experience, and ii) which quality-improvement strategies can help deliver the best care at the least cost. The findings presented in this synthesis report were assembled through a systematic review of the policies and institutions described in each OECD Health Care Quality Review, to identify common challenges, responses and leading-edge practices. This material was complemented by OECD health statistics and other OECD reports where appropriate. Governments should encourage, and where appropriate require, health care systems and health care providers to be open about the effectiveness, safety and patient-centredness of care they provide.