background: adolescent tobacco use remains a major public health priority to reduce the prevalence of tobacco use in community. the aim of this study was determining the association of the transitions in smoking stages with prevalence of cigarette smoking in the classes and schools in adolescents of tabriz city (northwest of iran). methods: fifty-six high schools were randomly selected, and 490...

OBJECTIVE To determine the relation between extent of restrictions on smoking at home, at school, and in public places and smoking uptake and smoking prevalence among school students. DESIGN Cross sectional survey with merged records of extent of restrictions on smoking in public places. SETTING United States. PARTICIPANTS 17 287 high school students. MAIN OUTCOME MEASURES Five point sc...

Objective To determine the relation between extent of restrictions on smoking at home, at school, and in public places and smoking uptake and smoking prevalence among school students. Design Cross sectional survey with merged records of extent of restrictions on smoking in public places. Setting United States. Participants 17 287 high school students. Main outcome measures Five point scale of s...

OBJECTIVE To examine the differential associations of cigarette retail marketing practices on youth smoking uptake. DESIGN Analyses from annual, nationally representative, cross-sectional surveys of 8th, 10th, and 12th graders in the United States. SETTING The February 1999 through June 2003 Monitoring the Future surveys involved 109,308 students and data on retail cigarette marketing colle...

conclusions we have found significant associations between lifestyle factors (alcohol consumption and smoking) and mental health problems (depression and insomnia) and crc screening uptake. to improve overall crc screening uptake in the us, it is important to consider racial differences in predictors and tailor appropriate interventions to each racial/ethnic group. background mortality from col...

BACKGROUND There is increasing evidence that contact with other smokers, particularly in the family, is a strong determinant of risk of smoking uptake. A systematic review and meta-analysis of the magnitude of these effects is reported. METHODS Studies were identified by searching four databases to March 2009 and proceedings from international conferences. Meta-analyses were performed using r...