search results show that numerous primary studies have been carried out in different parts of iran regarding prevalence of g6pd deficiency; if results of these studies are combined, a reliable estimation of prevalence of this factor will be achieved in iran. thus, present study, aimed to determine the prevalence of g6pd deficiency by combining findings of qualified primary studies using meta-an...

background gastroesophageal reflux disease is a common, chronic disease worldwide. the weekly prevalence of reflux in developed countries is 10% to 48%. it has previously been reported as 5% in asian countries, but new reports show a higher level in both asian and arab countries. in iran, reflux has increased over the last two decades. there are few studies concerning the prevalence of reflux i...

objective: the aim of the present study was to estimate the pooled prevalence of different types of child abuse in iran. method: we systematically searched four english databases (pubmed, sciencedirect, psychinfo and scopus), and three farsi databases (magiran, iranmedex and sid) to find out relevant articles that have reported the prevalence of child abuse in iran. studies conducted on special...

Background Recently there has been a significant increase in the number of systematic reviews addressing questions of prevalence. Key features of a systematic review include the creation of an a priori protocol, clear inclusion criteria, a structured and systematic search process, critical appraisal of studies, and a formal process of data extraction followed by methods to synthesize, or combin...

background: gastroesophageal reflux disease (gerd) is one of the most prevalent disorders affecting gastrointestinal tract with a wide range of frequency around the world. in this study, we aimed to review all of the published studies about gerd’s prevalence in iran systematically. methods: we searched bibliographic databases including pubmed and google scholar and local databases (scientific i...

Background: The prevalence of asthma and allergy has increased during the last decades, especially in children. However, little is known about it in the Middle East region. This systematic review is aimed to estimate the prevalence of asthma among the Middle Eastern children. Methods: Local and international scientific databases including SID, Iranmedex, Medline and Science Direct were syste...

introduction: the prevalence of iran deficiency anemia (ida) in pregnant women is in variable between 40-80% in developing countries. there are some differences among different studies on this disorder. so, this present study is been performed for evaluating the prevalence of ida among pregnant iranians with systematic review and meta analysis method.method: this study is based on received info...