Laypeople roles at road traffic crash scenes: a systematic review.

This study aimed to identify the roles of laypeople at road traffic injuries (RTIs). A systematic review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The key words of 'laypeople', 'layman', 'layperson', 'bystander', 'first responder', 'lay first responder', 'road traffic', 'road traffic injury', 'crash injury', 'crash scene', 'emergency', 'trauma care', and 'prehospital trauma care' were used in combination with the Boolean operators OR and AND. We did electronic search on Google Scholar, PubMed, ISI Web of Science, CINAHL, Science Direct, Scopus, ProQuest. Based on the reviewed studies, some factors such as cultural conditions, knowledge, relief agencies, and demographic factors affect the interventions of laypeople at the crash scene in functional areas. Regarding the permanent presence of people at the crash scene, the present study can provide an opportunity to reduce different side effects of RTIs imposed on the society.