The assessment of the quality of individual studies selected is one of the essential steps that should to be carried conducting a systematic review of the literature. Which of the following instruments could be used to examine the cohort studies
a. The Newcastle-Ottawa Scale
b. The JADAD scale
c. The PRISMA statement
d. The CONSORT statement/checklist
A. The Newcastle-Ottawa Scale
Explanation: Newcastle – Ottawa scale is an instrument used to
evaluate the consistency of non-randomized research used in a
systematic study and/or meta-analysis. Using the instrument, each
sample is tested on eight elements, grouped into three groups:
collection of research groups; comparability of groups; and
assessment of either participation or significance result for
case-control or cohort studies respectively.
Explanation for wrong answer
B. It is randomized study and not selective.
C. The PRISMA declaration is comprised of a checklist of 27
elements and a flow diagram of four stages. The checklist includes
elements considered necessary for a comprehensive analysis to be
reported transparently. However, it can not be used in cohort
D. It is randomized study not selective.
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