First 355 words of the document:
To determine the relation between extent of restrictions on smoking at home, in school and in a public place and
smoking uptake and prevalence among school students
METHOD: Self-report (Questionnaire)
Random sample of 17287 high school students (grades 9-12, age 14-17) at 202 schools in USA. One school in each
county of the mainland US was randomly chosen and one class in each grade. 73% of schools selected agreed to PP
and 80% of students in sampled classes completed the questionnaire.
Questionnaires contained demographic data and info on whether adults and siblings in the home were smokers.
Respondents then classified by stage of smoking up take on basis of responses on smoking history and intentions
that have found to predict current smoking at 3-4 year follow up.
Closed questions asked e.g. `How is cigarette smoking handled in your home?' Two measures of school smoking
were learned: whether there was a ban or not, and if there was a ban, how strongly the ban was enforced.
Information on state, county and city laws relating restrictions on smoking in public places for the 202 school sites in
Logistic regression analysis used to examine the association between smoking status and smoking restrictions. Each
analysis was adjusted for school grade, sex, whether adults/ siblings at home smoked.
Legal restrictions in public places, parent enforced restrictions at home and enforced school bans were significantly
associated with not developing a smoking habit
Home smoking bans had a much greater effect than legal restrictions on smoking in public places on uptake of
Strongly enforced school bans were associated with 11% reductions in uptake of smoking across all stages of
Findings were consistent with other research which has shown that parental opposition to smoking and banning
smoking in home reduce uptake of smoking in teenagers. Legal restrictions in public places and school bans, in the
view of the author, have a more modest effect and only when strictly enforced.