The World Health Organization (WHO) Surgical Safety Checklist has been implemented in healthcare systems around the world. This systematic review and thematic analysis concluded that the surgical safety checklist positively impacts clinical outcomes (surgical outcomes and mortality), process measures, team dynamics, and communication, as well as safety culture. The authors note that the checklist was negatively associated with efficiency and workload; included studies often noted that checklist users felt the checklist slowed down processes within the operating room