RT Journal Article
SR Electronic
T1 Methods of the International Tobacco Control (ITC) China Survey
JF Tobacco Control
JO Tob Control
FD BMJ Publishing Group Ltd
SP i1
OP i5
DO 10.1136/tc.2009.029900
VO 19
IS Suppl 2
A1 Wu, Changbao
A1 Thompson, Mary E
A1 Fong, Geoffrey T
A1 Li, Qiang
A1 Jiang, Yuan
A1 Yang, Yan
A1 Feng, Guoze
YR 2010
UL http://tobaccocontrol.bmj.com/content/19/Suppl_2/i1.abstract
AB 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.