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Information on how to conduct systematic reviews in psychology and the health sciences
PRISMA provides a list of items to consider when reporting results.
Study selection: Give numbers of studies screened, assessed for eligibility, & included in the review, with reasons for exclusions at each stage, ideally with a flow diagram.
Study characteristics: For each study, present characteristics for which data were extracted (e.g., study size, PICOs, follow-up period) & provide the citations.
Risk of bias within studies: Present data on risk of bias of each study &, if available, any outcome level assessment.
Results of individual studies: For all outcomes considered (benefits or harms), present, for each study: (a) simple summary data for each intervention group (b) effect estimates & confidence intervals, ideally with a forest plot.
Synthesis of results: Present results of each meta-analysis done, including confidence intervals & measures of consistency.
Risk of bias across studies: Present results of any assessment of risk of bias across studies.
Additional analysis: Give results of additional analyses, if done (e.g., sensitivity or subgroup analyses, meta-regression).