In the Guide to Community Preventive Services: Systematic Reviews and Evidence-Based Recommendations (Public Health Resources) the “Methods” section provides systematic review methods for evaluating the effectiveness of health interventions.
From their About page:
When communities need to know how to protect and improve their population’s health, they turn to The Community Guide, a collection of evidence-based recommendations and findings from the Community Preventive Services Task Force (CPSTF). CPSTF makes evidence-based recommendations about the effectiveness and economic impact of public health programs, services, and other interventions used in real-world settings such as communities, worksites, schools, faith-based organizations, military bases, public health clinics and departments, and integrated healthcare systems.
The Community Guide