The report and an accompanying series of studies show the global uptake of the World Health Organization (WHO) Surgical Safety Checklist in its first ten years since its launch and recommend ways the Checklist can be more effectively used to improve surgical safety for millions at risk. The report found that uptake has been remarkably positive: the Checklist has been adopted in almost 90% of operating rooms in countries with a high Human Development Index (HDI), a country-level measure of health, education, and standard of living. It was referenced by at least 139 (70%) of the world's countries and is included as a national standard by the health ministries of at least 20 countries. The Checklist has also had beneficial qualitative impact, introducing a culture of safety and improved communication within surgical teams, increasing patient trust, and improving job satisfaction.