Keywords: Behaviour Modification (e.g., provision of item/tool, incentives, goal setting), Clinic, Community health centre, Education / Awareness & Skill Development / Training, Female, Grade school aged (5-12 years), Home, Hospital, Male, Meta-analysis, Phone, Preschool aged (1-4 years), Smoking Cessation/Tobacco Use, Social Support (e.g., counseling, case management, outreach programs) , Youth Health