title: [An investigation on the trend and related determinants of cigarette smoking on experimental smokers among undergraduate students in Changsha].
abstract: OBJECTIVE
  To investigate the trend and related determinants of cigarette smoking on experimental smokers among undergraduate students in Changsha.
  
  
  METHODS
  Stratified sampling method was adopted and 3600 undergraduate students from grade 1 to 3 in Changsha city were investigated through a self-administered questionnaire. All the experimental smokers during the last month were selected and divided into two groups based on the present smoking status. χ(2) test and logistic regression analysis were used to compare the differences of cigarette smoking among subpopulations and to explore the determinants.
  
  
  RESULTS
  Among the 1550 experimental smokers of undergraduate students, the prevalence of cigarette smoking was 30.8% (95%CI: 28.5 - 33.1). Students from the second-class (OR = 2.367) or the third-class universities (OR = 2.562) were more likely to adopt smoking behavior than those from top universities. Students majored in sports or arts (OR = 2.456) were significantly more inclined to smoke than the liberal arts students. Students whose father were cadres (OR = 1.602) were more likely to become smokers than those whose fathers were workers. Students being males (OR = 7.386), having high monthly expenses (OR = 1.139), with positive attitude to smoking benefits (OR = 1.140) were risk factors for smoking. Number of smoking members in the family (OR = 1.801) was significantly associated with the prevalence of cigarette smoking. Knowledge on diseases caused by smoking (OR = 0.806) was protecting factor to smoking among the experimental smokers.
  
  
  CONCLUSIONS
  Those experimental smokers among undergraduate students might become smokers and the determinants of cigarette smoking behavior would include: ranking of universities, students' major, gender, father's occupation, amount of pocket money, number of smoking members in the family, knowledge about smoking, the attitude to the benefit of smoking.
authors.affiliation: School of Public Health, Central South University, Changsha, China.
authors.forename: Liu
authors.initials: L
authors.lastname: Yang
authors.forename: Feng-lei
authors.initials: FL
authors.lastname: Chen
authors.forename: Xiang-yu
authors.initials: XY
authors.lastname: Shi
authors.forename: Hao
authors.initials: H
authors.lastname: Chen
authors.forename: Dan
authors.initials: D
authors.lastname: Lin
authors.forename: Hong-zhuan
authors.initials: HZ
authors.lastname: Tan
mesh_terms: D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D012307:Risk Factors; D012907:Smoking / Q000453:epidemiology*; D013334:Students; D011795:Surveys and Questionnaires; D014495:Universities