نتایج جستجو برای: seventeen diagnostic studies with high methodological quality
تعداد نتایج: 10513914 فیلتر نتایج به سال:
Randomised trials vary in methodological quality, and flaws in trial conduct can lead to biased estimation of the intervention effect. If a meta-analysis makes no allowance for methodological flaws, there’s a danger that the results could be biased and over-precise, or that some lowerquality trials could be given too much influence in the meta-analysis. Cochrane review authors now use a specifi...
Study selection Study designs of evaluations included in the review Diagnostic cohort studies. To be included, index tests and standard tests had to be systematically performed in all patients with the sampling technique specified. The included studies were all prospective. Review papers and letters to the editor were excluded. The studies had to report sufficient information to judge methodolo...
this study aimed at examining the effects of iranian efl learners’ anxiety, ambiguity tolerance, and gender on their preferences for corrective feedback (cf, henceforth). the effects were sought with regard to the necessity, frequency, and timing of cf, types of errors that need to be treated, types of cf, and choice of correctors. seventy-five iranian efl students, twenty-eight males and forty...
Background and Aim: Quality of printed papers in 4 four medical journals affiliated to one of the universities of medical sciences in Iran was assessed based on methodological and statistical methods. Materials and Methods: In this cross sectional study conducted in 2010, out of all articles published between the years 2002 to 2008 in one of the universities of medical sciences for affiliated ...
BACKGROUND The stepped wedge cluster randomised trial (SW-CRT) is increasingly being used to evaluate policy or service delivery interventions. However, there is a dearth of trials literature addressing analytical approaches to the SW-CRT. Perhaps as a result, a significant number of published trials have major methodological shortcomings, including failure to adjust for secular trends at the a...
abstract present research considered to examine and compare shahrray 14 years girls and boys narrative concerning with their responsibilities in this research, statistical society are 14 years girls and boys of shahrry . for performing this research. first, 14 years of 50 boys and 50 girls were selected in accidental method and have filled memati hormaled adolescents responsibility questioner...
Background and Aim: Materials and methods, as one of the most important parts of a paper, introduces its scientific value. This study aims to investigate the methodological quality of publications of Tehran University of Medical Sciences (TUMS) indexed in PubMed. Materials and Methods: In this descriptive, cross-sectional study, 400 articles affiliated to Tehran University of Medical Scien...
The diagnosis of acute human immunodeficiency virus (HIV) infection (AHI) plays a unique role in preventing the spread of HIV and ending the epidemic. Acutely infected individuals are thought to contribute substantially to forward transmissions of HIV; however, diagnosing AHI in resource-limited settings has proven to be a challenge. While fourth generation antigen-antibody combination assays h...
BACKGROUND This study is a systematic review and meta-analysis of the diagnostic value of cardiovascular magnetic resonance (CMR) in cardiac amyloidosis (CA). METHODS A wide variety of electronic databases were searched for studies of CMR that reported the diagnostic accuracy in patients with suspected CA. Research manuscripts were subjected to further systematic review and meta-analysis. Met...
BACKGROUND Mobile phone usage has been rapidly increasing worldwide. mHealth could efficiently deliver high-quality health care, but the evidence supporting its current effectiveness is still mixed. OBJECTIVE We performed a systematic review of systematic reviews to assess the impact or effectiveness of mobile health (mHealth) interventions in different health conditions and in the processes ...
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