The Global School-Based Student Health Survey helps countries measure and assess, at a relatively low cost, the behavioral risk factors and protective factors among young people ages 13 to 17 years. Based on the data, countries may set priorities, establish programs, and develop resources for school health and youth health programs and policies.The questionnaire is self-administered. Ten key topics are covered: alcohol use, dietary behaviors, drug use, hygiene, mental health, physical activity, protective factors, sexual behaviors, tobacco use, and violence and unintentional injury.