TY - JOUR T1 - Methods of the International Tobacco Control (ITC) China Survey JF - Tobacco Control JO - Tob Control SP - i1 LP - i5 DO - 10.1136/tc.2009.029900 VL - 19 IS - Suppl 2 AU - Changbao Wu AU - Mary E Thompson AU - Geoffrey T Fong AU - Qiang Li AU - Yuan Jiang AU - Yan Yang AU - Guoze Feng Y1 - 2010/10/01 UR - http://tobaccocontrol.bmj.com/content/19/Suppl_2/i1.abstract N2 - This paper describes the design features, data collection methods and analytical strategies of the ITC China Survey, a prospective cohort study of 800 adult smokers and 200 adult non-smokers in each of six cities in China . In addition to features and methods which are common to ITC surveys in other countries, the ITC China Survey possesses unique features in frame construction, a large first phase data enumeration and sampling selection; and it uses special techniques and measures in training, field work organisation and quality control. It also faces technical challenges in sample selection and weight calculation when some selected upper level clusters need to be replaced by new ones owing to massive relocation exercises within the cities. ER -