purpose: to determine the prevalence of uncorrected refractive errors and its determinants in tehran in 2002. methods: a total of 6497 citizens representing a cross-section of the population of tehran were sampled using a stratified random cluster sampling strategy. of these, 4565 (70.3%) subjects participated in the study and were transferred to a clinic for an extensive eye examination and in...

aims: considering the medical significance of cockroaches as insect vectors of food toxicities, and triggering allergy in respiratory system and skin, this survey was conducted to study the frequency of infestation and their effective factors in shahin shahr, iran. materials & methods: this cross-sectional descriptive study was carried out in 2010 in shahin shahr, isfahan, iran. data gathering ...

on the basis of a cross-sectional demographic survey that was conducted among the qashqai tribe of southern iran in 1973, the crude birth rate was estimated at 48.2 per thousand per year. the most productive age groups, was 25-29 years. forty-nine, point seven per cent (49.7%) or about one half of the total births occurred among married women aged 20 to 29 years eighty-seven point three per cen...

background: although there are efforts being underway to control and prevent intestinal parasitic infections (ipis) in ethiopia, they are still endemic and responsible for significant morbidity. the aim of this study was to evaluate the prevalence of ipis and their association with nutritional status among primary school children of delo-mena district, south eastern ethiopia. methods: a cross-s...

introduction: infertility is a major problem in today´s medicine. infertility is known a health indicator and the right to infertility treatment is part of millennium development goal. the present study aimed to determine the risk factors of infertility, in women referred to both public and private health centers in ilam. materials and methods: a cross-sectional study was carried out among wome...

Purpose: Nurses can directly influence health services quality and outcomes. They need correct information in due time to provide an effective service for the patient and other healthcare personnel. Nursing information system is a subsystem of hospital information system that can help nurses to have better performances. The goal of this study was to evaluate nursing information system of hospit...

OBJECTIVE This study was undertaken to establish the prevalence and severity of nutritional problems among low-income children of elementary school age in the Los Angeles Unified School District (LAUSD) in order to collect baseline data to inform policy-makers. DESIGN AND METHODS A cross-sectional survey of children in 14 elementary schools was conducted from January to June, 1998. Nine hundr...

background: diabetes has become a daunting health and medical challenge as well as a hefty economic burden for societies over the past decades. this study was designed to shed light on the overall trend of research across iran regarding mental health status of diabetic patients. method: search process of the present study is part of search strategy of iran diabetes research roadmap (idrr) study...