摘要：This Campbell systematic review examines why the implementation of preventive interventions to reduce youth involvement in gangs and gang crime may fail or succeed low and middle‐income countries. The review summarises findings from four studies conducted in Latin America and the Caribbean. These include findings from field observations and interviews with 63 former gang members in Guatemala, Honduras and El Salvador, 940 respondents in three Jamaican communities, 24 participants in Nicaragua and 25 participants in Peru. It is not possible to make any conclusions regarding the effectiveness of preventive interventions. Four factors may be important for intervention design and implementation: Having a range of programme components that appeal to youth such as arts and sports. Active engagement of youths and gang leaders in forming and implementing the programme. Ensuring continuity of social ties outside the gang which are fragile and may not be preserved after short‐term interventions. Ongoing violence and gang involvement limits successful implementation so needs to be addressed.
