Methods. A comprehensive literature search was conducted to identify clinical trials that focused on the prevention of EA in children anaesthetized with sevoflurane, desflurane, or both. The data from each trial were combined using the Mantel–Haenszel model to calculate the pooled odds ratio (OR) and 95% confidence interval. I statistics were used to assess statistics heterogeneity and the funn...

n engl j med 355;14 www.nejm.org october 5, 2006 1500 large thrombus burden. Indeed, a recent study comparing clinical and procedural characteristics among hospitals, mostly regarding elective percutaneous coronary intervention, invariably reported a contrast volume of more than 200 ml.5 Finally, the difference in the primary end point and the other clinical end points between the two N-acetylc...

The logrank test is a well-known nonparametric which often used to compare the survival distributions of two samples including right-censored observations, it also known as Mantel-Haenszel test. Gρ family tests, generalizes by using weights assigned observations. In this paper, we present switch monotonicity property for was motivated need derive bounds statistic in case imprecise data This sta...

This study uses simulated data to compare two methods of calculating Differential Test Functioning (DTF): Raju’s DFIT, a parametric method that measures the squared difference between two Test Characteristic Curves (Raju, van der Linden & Fleer, 1995), and a variance estimator based on the Mantel-Haenszel/Liu-Agresti method, a non-parametric method enabled in the DIFAS (Penfield, 2005) program....

the purpose of this study was to detect differentially functioning items in the university of tehran english proficiency test (utept) which is a high stake test of english developed and administered by the language testing centre of the university of tehran. this paper is based on the answers of 400 test takers to the test. all participants earned a master degree either in humanities or science...