abstract: in contrast to traditional reviews, systematic reviews explore theliterature on a specific topic comprehensively using a well-defined protocol and recruit the findings of eligible studies after the assessment of their qualities, using a clear and reproducible method. checking the assumptions, we may merge the findings of recruited studies in a systematic review and use metaanalysis te...

background: dental traumas are common among children and adolescents in many societies posing health and social problems. the aim of this study was to conduct a systematic review and meta-analysis on prevalence, etiology, types, and other epidemiologic aspects of dental trauma in children and adolescents (0-18 years old). methods: in this systematic meta-analytical review, data were collected s...

background: esophageal cancer is often diagnosed in the last stages where the chance of patient’s survival is very low. the aim of this systematic review was presentation of valid estimation of survival in patients with esophageal cancer in different regions of iran. methods: a systematic review was carried out based on the reliable domestic medical databases including: sid, magiran, irandoc an...

data extraction primary outcomes were incidence, prevalence, or odds ratio of having osteoporosis, defined as bone mineral density t-score < -2.5 sd. results of 353 articles, 344 articles were excluded, 9 underwent full-length review and data were extracted from 7 studies consisting of 113,558 patients. finally, 3 extracted studies were included in the meta-analysis of osteoporosis. among cohor...

background and aims: nowadays, hypnosis has opened its position in the medical community. based on controlled trials, hypnosis has been superior compared to other interventional procedures to reduce acute pain. this investigation aims to determine the effectiveness of hypnosis in the treatment of pain and enhancing mental performance in iran, using the meta-analysis method. methods: the search ...

background: burnout is currently a major concern among physicians due to their high level of stress at work. there are several reports on various levels of burnout in residency programs due to several predisposing factors. the aim of this systematic review was to estimate a more precise prevalence of burnout among residents of obstetrics and gynecology. methods: pubmed, science direct and scopu...

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...

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 inf...

background : the present study aimed to provide better insight on methodological issues related to time preference studies, and to estimate private and social discount rates, using a rigorous systematic review and meta-analysis. methods : we searched pubmed, embase and proquest databases in june 2013. all studies had estimated private and social time preference rates for health outcomes through...

background and objective : restless legs syndrome (rls) is a sensorimotor disorder that causes sleep deprivation. rls is characterized by discomfort in the legs and severe desire to move them during sleep. different prevalence rates about rls are reported in iran. this systematic review and meta-analysis was performed to estimate the prevalence of rls in iran. materials and methods : by searchi...