The GYTS is a school-based survey that collects data on students aged 13–15 years using a standardized methodology for constructing the sample frame, selecting schools and classes, and processing data. The GYTS surveillance system is intended to enhance the capacity of countries to design, implement, and evaluate tobacco control and prevention programs.
Kind of Data
Sample survey data [ssd]
Unit of Analysis
Individuals and institutions
v1: Edited, anonymised data for public distribution
The core module of the GYTS asks learners about their tobacco use and consumption intensity, and their use of smokeless tobacco products, and attempts to quit and relapses. The survey also collects data on their exposure to second-hand smoke, access to and purchasing of tobacco products, learners' knowledge of tobacco advertising and anti-tobacco messages, and their attitudes and beliefs about using tobacco.
The survey had national coverage.
The target group of the survey are learners aged 13-15 years in the selected schools.
Producers and sponsors
World Health Organization
Centers for Disease Control and Prevention
Canadian Public Health Association
National Cancer Institute
United Nations Children Emergency Fund
World Health Organization—Tobacco Free Initiative
School-based survey of students aged 13-15 years
Multistage sample design with schools selected proportional to enrollment size
Classrooms chosen randomly within selected schools
All students in selected classes eligible for participation
Dates of Data Collection
Data Collection Mode
The Global Youth Tobacco Survey has a core questionnaire, with optional, add-on modules. The core questionnaire is used for all countries.
Public use files, available to all
World Health Organisation. Global Youth Tobacco Survey South Africa 2008 [dataset]. Version 1. Geneva: WHO [producer], 2010. Atlanta: Centers for Disease Control and Prevention [distributor], 2010.