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Is Iron Deficiency Anemia a Risk Factor in Asthmatic Children?
2013
Journal of King Abdulaziz University-Medical Sciences
As tobacco epidemic continues to increase among adolescents, tobacco control programs based on actual field studies are crucially needed. A cross-sectional study was conducted in Tabuk region to determine the prevalence and risk factors of tobacco use among secondary school boy students. A three-stage stratified random sampling design was used to recruit a sample of 1,680 students from 15 secondary schools. A self-administrated Arabic questionnaire was used to collect the required data. A d e s
doi:10.4197/med.20-1.1
fatcat:b4pfb7chhvfizks5uzrvspuqdq