Congress logo
Back to Conference page

The 13th World Conference on Tobacco OR Health

Building capacity for a tobacco-free world

July 12-15, 2006, Washington, DC, USA

Thursday, July 13, 2006 - 12:00 PM

Prevalence of Tobacco Use among Students of the 7th, 8th Grades and 1st Year of High School Grades in 14 Brazilian Cities

Leticia Casado1, Elaine M. Fernandes1, Liz Maria Almeida, PhD1, and Tania Maria Cavalcante, MPH2. (1) Epidemiology Division, Brazilian National Cancer Institute, Rua dos Invalidos, 212/ 3║floor, Rio de Janeiro, Brazil, (2) Tobacco Control Division, Brazilian National Cancer Institute, Rua dos Invalidos, 212/ 3║floor, Rio de Janeiro, Brazil

Objective: To evaluate the impact of the ministry of health tobacco control program to reduce tobacco use initiation, the national Cancer Institute, together with the state departments of health and the WHO/PAHO and the CDC became involved, in 2002, in the Global Youth Tobacco Survey (GYTS, in Brazil, Vigescola). This paper will describe the prevalence and the profile of tobacco users in 14 state capitals.

Methods: We surveyed 7th and 8th graders and among students in the 1st year of high school in 14 state capitals. The sampling was done in two stages: first we selected the schools based on proportional probability based in school size and second, based on class size. The students in the selected classes answered the standard written self-administered questionnaire survey (response rate: 62,7% to 89,4%). The sampling and data consolidation was conducted by CDC and prevalence estimates were developed using EpiInfo 2002 software. (

Results: 339 schools; 19,217 answered the survey. The percentage of those that have ever tried cigarettes varied from 53.3% (+ 4.1) in Fortaleza to 29.3% (+ 5.7) in Salvador. Experimentation was higher among boys in 11 of the 14 cities (32% in Salvador to 58% in Fortaleza). Prevalence (of regular smokers?) was higher among boys in 11 cities, the exception being in the southern cities of Porto Alegre, Florianopolis and Curitiba (%, % and % respectively). Statistically significant differences in regular use among boys and girls were found in Porto Alegre (16% and 24% respectively)

Web Page: