Flashcards in Quiz 4 Deck (92)
Three types of literature reviews
Narrative, systematic, and Meta-analysis
What is a narrative review?
A review that summarizes in general what is in the literature on a given topic
Characteristics of a narrative review
- Often written by experts in the field.
- A good source for background information
- Fairly easy to write and read
______ review does not follow strict system methods like the other literatures
Which review is prone to bias and is low in the hierarchy of evidence?
How can narrative bias be seen?
- During the literature research
- During reporting of studies
- In discussion and conclusion
How can narrative bias be seen during literature research?
- Authors may be selective as to which articles are selected
- They may include articles that support their hypothesis & exclude those that do not
How can narrative bias be seen during reporting of studies?
- Rigorous appraisal methods are not used to evaluate included articles
How can narrative bias be seen in discussion and conclusion?
- The authors' opinions may be mixed together with evidence
What is a systematic review?
A rigorous process of searching, appraising, summarizing, all the information on a selected topic
Systematic reviews most commonly address what type of questions?
Questions of effectiveness, but also diagnostic accuracy, prognosis, or other areas of research
What is the aim of a systematic review?
To find all studies addressing the review's question using an OBJECTIVE & TRANSPARENT process
What is the gold standard of systematic reviews?
The cochrane collaboration
A systematic review is also called a
Study of studies
What is the process of a systematic review
- State the study objective
- Develop the protocol (set inclusion/exclusion criteria)
- Develop a search strategy
- Conduct the search
- Retrieve relevant papers
- Screen and select papers that meet established criteria
- Evaluate Methodogical quality of selected studies
- Analyze & synthesize findings
- Determine if statistical data are sufficient for further analyses (If not report results of systematic review) (if it does move to the next step)
- Analyze effects of size estimates
_ Report results of meta-analysis
The results of the included studies of a systematic review are ____ or ____
Qualitative or quantitative
What happens when the results of a systematic review is qualitatively synthesized?
Written information is merged
What happens when the results of a systematic review is quantitatively synthesized?
Data are merged
Most known diagnostic study quality?
Most known interventional study quality?
Information collected from a research can include
The method, participants, funding sources, and outcomes
Short line in forest plot represents
Better, more valid information
Long line in the forest plot represents
Not as good, weaker information
The diamond in the forest represents
The combined results of all data included
The diamond is considered____ and ______ evidence
more reliable and better
What is a meta-analysis?
The statistical technique involved in extracting and combining data produce a summary result
When can/should you do a meta-analysis?
- When more than one study has estimated an effect
- When there are to no differences in the study characteristics that are likely to substantially affect outcome
- When the outcome has been measured in similar ways
What is the most common way to see the results of a meta-analysis summarized?
In a forest plot
What is a forest plot?
A type of graph often used in meta-analyses to illustrate the treatment effect sizes of the studies