conclusions there were significant linkages between hcv genotypes and il28b genotypes/alleles. patients with a favorable il28b and genotypes 1 and 4 hcv infection stand a better chance to clear hcv in the acute phase. objectives this meta-analysis was designed to determine the world-wide distribution patterns of il28b genotypes and alleles, and to find possible linkages between il28b and hcv ge...

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...

conclusions the findings of the meta-epidemiological study support that ebv infection may increase the risk of breast cancer. nested case-control studies are required in the future. results a total of 20 case-control studies were selected, and the total numbers of subjects in the case and control groups were 1947 and 1010, respectively. the findings of this meta-analysis revealed that ebv infec...

background evidence indicates rfc1 g80a polymorphism as a risk factor for a number of cancers. increasing studies have been conducted on the association of rfc1 g80a polymorphism with acute lymphoblastic leukemia (all) risk. however, the results were  controversial. the aim of the present study was to derive a more precise estimation of the relationship.  materials and method pubmed, embase, we...

BACKGROUND The random-effects (RE) model is the standard choice for meta-analysis in the presence of heterogeneity, and the standard RE method is the DerSimonian and Laird (DSL) approach, where the degree of heterogeneity is estimated using a moment-estimator. The DSL approach does not take into account the variability of the estimated heterogeneity variance in the estimation of Cochran's Q. Bi...

Background and aims: Infertility is one of the most important conditions in reproductive system and there is no reliable estimates for global prevalence of infertility. Therefore, knowing the prevalence of infertility is important and can be effective in decision making. Methods: We systematically reviewed all published papers in Medline database and Scopus (1988–2010). Univariate and multivar...

integration and coherence within a city’s physical structure have become an issue for towns and cities as theyrapidly expand, incorporate new elements, and undergo incessant changes. at present, we are facing an extensive accumulation of signs and traits in modern urban patterns; many unaccustomed to and incongruous are affecting the socio-cultural and physical characters of cities. here, we wi...