5 systematic reviews of RCT's Flashcards
What 3 factors contribute to is evidence based medicine
individual clinical expertise
best external evidence
patient values and expectations
What is publication bias?
when the publication of research results depends on their nature and direction
What is positive results bias?
authors more likely to submit or editors accept, positive than negative or inconclusive results
What is outcome reporting bias?
when several outcomes within a trial are measured but are reported selectively depending on the strength and direction of those results
What are the benefits of using reviews?
smaller volume of literature
new information accesssible
some reviews are extremely good and have taken considerable time to find relevant information
What is a systematic review?
the research method used to synthesise multiple pieces of research evidence on the effectiveness of a treatment
What are the 8 stages to a systematic review?
define question write protocol search for evidence select relevant studies appraise studies extract, analyse, and summarise data interpret review results discussion and conclusions
What is the difference between a systematic review and a narrative review?
narrrative - general discussion, no explicit hypothesis, kinda shit
What is a meta-analysis?
statistical techniques are used to combine the quantitative results from a number of studies
What are the 3 parts to a critical appraisal?
trustworthy/valid?
results?
useful?
How might you see if a systematic review asks a clearly focused question?
PICO