Tobacco use among youth and related characteristics, Turkey.

Objectives: To provide nationally representative data on smoking prevalence of Turkish adolescents; to examine their knowledge, attitude and exposure to tobacco.

Methods: A school-based representative survey of adolescents (13-15 years) was conducted within the frame of Global Youth Tobacco Survey (GYTS). 15957 students were selected using a two-stage cluster sampling method and completed an internationally standardized questionnaire on tobacco use and related factors.