The Colleges of Education in Kwara State were purposively selected but randomly allocated as study and control Colleges.
The College of Education, Ilorin was the study group while the control group was selected from College of Education, Oro, Kwara State. The study focused on the full-time students of the two Colleges of Education.
Multistage sampling technique was adopted in the study.
In the first stage, a simple random sampling technique by balloting was adopted to select two schools out of five in each of the Colleges which served as the study and control groups.
Objectives: The study assessed the effects of health education intervention on knowledge of health hazards, attitude and practice of cigarette smoking among students of College of Education, Ilorin, Kwara State, Nigeria.
Methodology: This is an intervention study conducted using the students of College of Education, Oro, Kwara State as the control group.In 1994, World Bank estimated that the use of tobacco results in a global net loss of US 0,000 million per year, with half of these losses occurring in developing countries. Geographical variation in the prevalence of cigarette smoking contributes to differences in the mortality patterns of smoking related diseases such as lung cancer, chronic obstructive lung disease and coronary heart diseases. The World Health Organization (WHO) at the forty-second World Health Assembly recognized that worldwide the use of tobacco is responsible for two million premature deaths annually,  and support active efforts to resolve the economic issues involved in reducing tobacco production.The survey is aimed at evaluating the effect of health education intervention on cigarette smoking as well as on knowledge of health hazards resulting from it among the study population.The study was conducted in Colleges of Education in Kwara State, North Central Nigeria.Permission for the study was obtained from the Deans Student Affairs and Registrars of the two Colleges.A preliminary discussion with the students of the two Colleges through the Students Union Leaders and some Class Representatives was carried out. The health risks of tobacco are vastly underestimated because of the 30-40 year time lag between the onset of smoking and the peak in the deaths that it causes.In the developing world, tobacco poses a major challenge, not just to health, but also to social and economic development, and to environmental sustainability.Impact of intervention was assessed by re-assessing knowledge, attitude and practice of the students after intervention.Results: Pre- intervention, 67.9% of the study group and 64.2% of the control group were aware that cigarette smoking was associated with lung cancer.