the purpose of this study was to assess the effect of preventive immunization on the incidence of allergies in poland.18617 (53.8% female, 24.2% 6-7 years old, 25.4% 13-14 years old, 50.4% 20–44 years old) were selected by stratified cluster sampling method in 8 cities and 1 rural area. 4783 of whom underwent objective outpatient screening assessments. study subjects were evaluated for any asso...

the population consisted of 2202 students of college of agriculture and natural resources, university of tehranm karaj. 118 of students were selected by stratified random sampling. a questionnaire was developed to gather required data. the content validity of the questionnaire was established by faculty members at department of agricultural extension and education, university of tehran. a pilot...

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...

objectives:the purpose of this study was to investigate the effect of hardiness training on test anxiety of first-grade female students of high schools in tehran.method: for this purpose sixty students, were selected by multistep cluster sampling method. tools of study were sarason test anxiety scale (s.tas) and hardiness training.results: the results indicated that the test anxiety rate of stu...

the main purpose of this study was to identify and analyze the mechanisms of small and medium enterprises (smes) development in qazvin province. the study is an applied quantitative research. the data was collected using a descriptive-survey method. the statistical population of the study consisted of managers in charge of smes in qazvin province.  93 people were selected as the sample by using...

This study examined the rate of suicide attempts and relevant variables and identified risk factors for suicide attempts among Korean adolescents. A cross-sectional study was performed using an anonymous, self-report questionnaire. A total of 2,100 Korean adolescents, including 1,321 student adolescents and 779 delinquent adolescents, were selected using a proportional stratified random samplin...

BackgroundIn most of the developing countries, the girl child is ill fed and undernourished. 1 Quite often the root cause of malnutrition among girls is not so much the lack of food as the lack of access to food. Thus undernourished girls who grow into undernourished women perpetuate the intergenerational undernourishment cycle.2 Aims and objectives1To assess the health status of female child, ...

1. Introduction The Medicare Current Beneficiary Survey (MCBS) conducted by the Centers for Medicare and Medicaid Services (CMS), Department of Health and Human Services, is a continuous sample survey of Medicare beneficiaries residing in the United States and Puerto Rico. The MCBS collects data on access to health care, health status, source of care, health care utilization and costs, satisfac...