Differences of smoking knowledge, attitudes, and behaviors between medical and non-medical students.

Background: Previous studies in the world reported inconsistent results about the relationship of medical professional education with medical students' smoking behaviors, and no similar research had been published in China.

Purpose: This paper aims to explore whether the differences of smoking-related knowledge, attitudes, and behaviors existed between medical and non-medical undergraduate students.

Methods: Eight thousand one hundred thirty-eight undergraduate students sampled from a university in Guangzhou were investigated with a self-administered structured questionnaire about their smoking-related knowledge, attitude and behaviors, and other relevant factors.

[A case-control study of environmental and genetic factors and prostate cancer in Guangdong].

Objective: To explore the etiologic relationship of prostate cancer and environmental and genetic polymorphism in southern China

Methods: A hospital-based and 1:1 matched case-control study was conducted. A total of 142 matched pairs of subjects were investigated in this study. The blood samples were collected from 85 cases of prostate cancer and 82 controls of other diseases after informing consent.

[Etiologic correlations of prostate cancer in Guangdong, China to family history of cancers, and sexual and marital factors-a case-control study].

Background & Objective: Prostate cancer is a common cancer in American and European men. The incidence of prostate cancer is low in China, but increases year by year. The previous etiologic studies on prostate cancer in China were mainly conducted in Shanghai, Wuhan, and Beijing, but rarely in Guangdong.

[Process evaluation on a health promotion model regarding smoking prevention among Chinese secondary school students].

Objective: To evaluate the process of smoking prevention and control among Chinese adolescent with a model on health promotion in junior high school.

Methods: A cluster-randomized, controlled and schooled-based trial on smoking prevention was conducted among 2343 students at four secondary schools in Huangpu District of Guangzhou. Students 'reports and investigators' daily records were used to evaluate the intervention measures.

[Possibility and predictors of successful cigarette purchase attempts by 201 primary school students in Guangzhou, China].

Objective: To explore the access to tobacco and exam the predictors of successful tobacco purchase attempts among Chinese minors.

Methods: A simulative trial of purchasing cigarettes was participated by 201 sixth grade students to assess the prevalence of illegal cigarette sales to minors in Guangzhou. Methods of Chi-square and unconditional logistic regression were used to identify the significant predictors,with the result of tobacco purchase as the dependent variable and the characteristics of stores, retailers and minors as the independent variables.