نتایج جستجو برای: epidemiological surveys
تعداد نتایج: 146349 فیلتر نتایج به سال:
PURPOSE Recent evidence suggests a global burden of chronic cough in general populations. However, the definitions vary greatly among epidemiological studies, and none have been validated for clinical relevance. We aimed to examine previous epidemiological definitions in detail and explore the operational characteristics. METHODS A systematic review was conducted for epidemiological surveys t...
طرح های پوششی و انباشتی در ترکیبات از اهمیت خاصی برخوردارند که مطالعه ؟؟؟؟طرح های پوششی مینیمیم و؟؟؟؟؟ طرح های ماکسیمم اهمیت این موضوع را روشن می سازد. هدف این پایان نامه بحث و بررسی طرح های پوششی و انباشتی مطالعه اعداد وابسته به آنها و ارائه روش هایی برای ساخت این طرح ها می باشد.مراجع اصلی این پایان نامه عبارت است از :1. charles . j .colbourn, and jeffry h.dinitz, the crc handbook of combina...
The changing structure of food consumption requires updating the nutrition assessment tool, taking into account modern dietary patterns. Aim . To develop, evaluate validity and reproducibility semiquantitative frequency questionnaire (FFQ) for adult population. Material methods. FFQ was developed as part Russian international Prospective Urban Rural Epidemiological (PURE) study. compare quantit...
BACKGROUND Violence in Darfur, Sudan, has rendered more than one million people internally displaced. An epidemiological study of the effect of armed incursions on mortality in Darfur was needed to provide a basis for appropriate assistance to internally displaced people. METHODS Between April and June, 2004, we did retrospective cluster surveys among 215?400 internally displaced people in fo...
BACKGROUND In epidemiological surveys, a good reliability among the examiners regarding the caries detection method is essential. However, training and calibrating those examiners is an arduous task because it involves several patients who are examined many times. To facilitate this step, we aimed to propose a laboratory methodology to simulate the examinations performed to detect caries lesion...
INTRODUCTION The epidemiologic characteristics of erectile dysfunction (ED) in mainland China remain incompletely understood. AIM To evaluate the overall prevalence and determine the severity of ED in mainland China. METHODS An extensive database search was performed of PubMed, Embase, the Chinese National Knowledge Infrastructure (CNKI) database, the WanFang database, the Chinese Biologica...
A rapid method of grading clinically important central lens opacities has been developed for use in eye surveys and in epidemiological studies of cataract and has been field-tested in a specifically designed observer agreement study in a survey of a rural community in Central India. The grading method is based on simple measurement of the area of lens opacity that obscures the red reflex relati...
BACKGROUND Tuberculosis (TB) incidence is decreasing worldwide and eradication is becoming plausible. In low-incidence countries, intervention on migrant populations is considered one of the most important strategies for elimination. However, such measures are inappropriate in European areas where TB is largely endemic, such as Porto in Portugal. We aim to understand transmission chains in Port...
PURPOSE To develop and validate a prediction model for mental health needs (MHN) and psychiatric needs (PN) using specific social indicators, obtainable from census data, within low-density departments (LDD) and high- density departments (HDD). METHODS In a population-based study of 20,404 participants from 22 departments in France, mental health needs were defined into three categories (no n...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید