The Global School-Based Health Survey (GSHS) was designed to provide accurate data on health behaviors and protective factors among students, including dietary behaviors, hygiene, physical activity, drug and alcohol use, and violence and unintentional injury. It is often used to help countries develop priorities, establish programs and advocate for resources for school health programs, policies and youth health.

In Tonga, a total of 2,211 questionnaires were completed in 24 schools. The school response rate was 100%, the student response rate was 80%, and the overall response rate was 80%.