At present, 70% of the world's 1.1 billion smokers are in developing countries, with over 50% in Asia alone. The current study examined patterns of youth smoking in Thailand and Malaysia. Respondents were 2002 youths between the ages of 13 and 17 from Thailand (n = 1000) and Malaysia (n = 1002). Respondents were selected using a multistage cluster sampling design and surveyed between January 20...

INTRODUCTION Rhinoplasty is a popular cosmetic surgical procedure. Informal statistics show that Iran has one of the highest rates of rhinoplasty in the world. However, rhinoplasty like any other surgery can have complications. MATERIALS AND METHODS In this cross-sectional study, 320 female students were selected by multistage cluster-stratified sampling from high schools in Kerman, Iran and ...

the current study attempted to investigate the mathematical sturcuture of cost function of irrigated wheat crop in kurdistan province. the methodolgy is based on duality assumption. the sample size is 257 farmers for the agricultural year 2011-2012.data was collected byinterviewwith farmers and writing writerquestionnaire.the multistage cluster random sampling used. the results showed that, the...

introduction: rhinoplasty is a popular cosmetic surgical procedure. informal statistics show that iran has one of the highest rates of rhinoplasty in the world. however, rhinoplasty like any other surgery can have complications.  materials and methods: in this cross-sectional study, 320 female students were selected by multistage cluster-stratified sampling from high schools in kerman, iran and...

BACKGROUND Determining the health-promoting behaviors of women during the important period of reproduction provides valuable information for designing appropriate intervention programs for advancing women's health. There is no study on the health-promoting behaviors of women of reproductive age in Iran. Thus, the aim of this study is to explore these health-promoting behaviors for the purpose o...

BACKGROUND Mental disorder is one of the most important diseases of which is predicted to increase from 10.5% to 15% until 2020. This study aimed to determine economic factors influencing mental health using multiple regression models in Ilam province in 2013. METHODS In this cross sectional study, 903 families from different cities of Ilam were selected using multistage cluster sampling. The...

the aim of this study was to determine the role of attachment styles and cognitive emotion regulation strategies in adolescents' social anxiety. 430 iranian high school students (200 boys and 230 girls) were selected by multistage cluster sampling method from high schools in isfahan city and completed a battery of scales including attachment styles scale (collins and read, 1990), cognitive...

objective: we aimed at designing a cross sectional study to investigate the prevalence of psychiatric disorders in iranian children and adolescents and to determine its relationship with social capital, life style, and parents' personality disorders. method: this cross sectional study was a national project implemented in all provinces of iran. in this community-based study, using ‎multistage c...