Collection of data through surveys is an important component of surveillance systems.
In 1998, WHO, the United States of America's Centers for Disease Control and Prevention (CDC) and the Canadian Public Health Association (CPHA) began development of the Global Tobacco Surveillance System (GTSS).
The purpose of the GTSS is to enhance the capacity of countries to design, implement and evaluate their national comprehensive tobacco action plan and to monitor the key articles of the WHO Framework Convention on Tobacco Control (WHO FCTC).
The GTSS includes the collection of tobacco-specific data for both youths (13-15 years) and adults (15 years and older) through four surveys:
Global Adult Tobacco Survey (GATS)
Global Youth Tobacco Survey (GYTS)
Global School Personnel Survey (GSPS)
Global Health Professions Students Survey (GHPSS)
In addition, WHO conducts a variety of multi-risk factor surveys that contain sections on tobacco use and exposure. These include: