OBJECTIVE Previous studies have examined the association between breastfeeding and rheumatoid arthritis (RA), but their results were inconsistent. The aim of this study was to perform a metaanalysis to clarify the effect of breastfeeding on RA risk. METHODS The PubMed, EMBASE, Chinese National Knowledge Infrastructure, and Wanfang databases were searched for relevant studies published up to S...

Objective Review and assess the current published literature regarding clinical outcomes of suction electrocautery adenoidectomy (ECA) in pediatric patients. Methods The MEDLINE database was systematically reviewed for articles reporting on the use of ECA. Inclusion criteria included English language, sample size greater than 5, and presentation of extractable data regarding pediatric outcomes ...

Leichsenring F, Rabung S, Leibing E. The efficacy of short-term psychodynamic psychotherapy in specific psychiatric disorders: a metaanalysis. Arch Gen Psychiatry 2004;61:1208–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

This paper discusses meta-analysis, enumerates the circumstances under which it might or might not be appropriate, and mentions some SAS® tools which can be used for metaanalysis.

Experiments that are run with few experimental subjects are often considered not to be very reliable and deemed, as a result, to be useless with a view to generating new knowledge. This belief is not, however, entirely correct. Today we have tools, such as metaanalysis, that we can use to aggregate small-scale experiments and output results that are equivalent to experiments run on large sample...

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...