background : we investigated whether the c-819t snp of the ctla4 gene is associated with type 1 diabetes (t1d) for the egyptian population, a multi-ethnic group.  we determined if expression of the c-819t snp correlated with onset of t1d for egyptian children and the prevalence of this polymorphism with respect to gender. methods: the association of the c-819t snp in intron 1 of the ctla-4 gene...

OBJECTIVES/HYPOTHESIS The present tutorial is the seventh in a series of Tutorials in Clinical Research. The specific purpose of the tutorial (Part A) and its sequel (Part B) is to introduce and explain three commonly used statistical tools for assessing contrast in the comparison between two groups. STUDY DESIGN Tutorial. METHODS The authors met weekly for 10 months discussing clinical res...

Bayesian hypothesis testing presents an attractive alternative to p value hypothesis testing. Part I of this series outlined several advantages of Bayesian hypothesis testing, including the ability to quantify evidence and the ability to monitor and update this evidence as data come in, without the need to know the intention with which the data were collected. Despite these and other practical ...