title: [The current status of passive smoking in Chinese families and associated factors].
abstract: OBJECTIVE
  To understand the prevalence of passive smoking in Chinese families and discuss its associated factors, as to providing scientific evidence for establishing tobacco control measures in China.
  
  
  METHODS
  Cross-sectional survey: from June to September, 2004, we randomly selected six counties in three different provinces ( Mianzhu and Xichong of Sichuan Province; Anyi and Hukou of Jiangxi Province; Xinan and Yanshi of Henan Province) and performed face-to-face questionnaire survey on citizens between 18 and 69 years old. All the data were double independently input by professional data entry company to ensure data accuracy. The prevalence of home passive smoking exposure in families with different demographic characteristics was described by using prevalence, and the possible correlated factors of home passive smoking exposure as independent variables, multiple factors were analyzed using Logistic Stepwise Regression Analysis method.
  
  
  RESULTS
  The analysis on 8142 nonsmokers revealed that the rate of passive smoking was 28.42%, with 27.38% of male and 28.93% of female suffering from passive smoking. All 87.19% of the smokers would smoke in front of their families. As many as 42.14% of the nonsmokers would offer cigarettes to their guests, while about 46.82% of the nonsmokers would suggest smokers to smoke outdoor. Home restriction on tobacco was extremely rare and only 6.33% of all the families completely forbade smoking. Multivariate logistic regression analysis of non-conditions revealed that, there was a lower level of involuntary tobacco smoke exposure in female, older age group, lower education level, divorced, or widowed families. There was no difference in involuntary tobacco smoke exposure between town dwellers and county dwellers, but such difference did exist in different districts.
  
  
  CONCLUSIONS
  The three provinces under investigation should have severe involuntary tobacco smoking exposure. Gender, age, literacy level, occupation and region should be all factors that influence the status of involuntary tobacco smoking exposure in different families. There is a high percentile that smokers would smoke in front of their families and kids and a relative low pressure against smoking from nonsmokers. Cigarette offering is very prevalence. The knowledge and attitude about passive smoking should be separated from the situation of passive smoking exposure.
authors.affiliation: Institute of Basic Medical Sciences, Peking Union Medical College, Beijing 100005, China.
authors.forename: Chun-Ping
authors.initials: CP
authors.lastname: Wang
authors.forename: Xue-Fang
authors.initials: XF
authors.lastname: Xu
authors.forename: Shao-Jun
authors.initials: SJ
authors.lastname: Ma
authors.forename: Cui-Zhu
authors.initials: CZ
authors.lastname: Mei
authors.forename: Jun-Fang
authors.initials: JF
authors.lastname: Wang
authors.forename: Ai-Ping
authors.initials: AP
authors.lastname: Chen
authors.forename: Gong-Huan
authors.initials: GH
authors.lastname: Yang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002681:China; D005163:Factor Analysis, Statistical; D005190:Family; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012494:Sampling Studies; D011795:Surveys and Questionnaires; D014028:Tobacco Smoke Pollution / Q000706:statistics & numerical data*; D055815:Young Adult
chemical_list: D014028:Tobacco Smoke Pollution