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Table 1 Study design categories

From: Biomedical journal speed and efficiency: a cross-sectional pilot survey of author experiences

Category Examples
Observational or other study Case-control studies, cross-sectional studies, cohort studies, retrospective analyses of data collected prospectively, case study/series, pharmacokinetic studies.
Clinical trial Single or multi-arm prospective interventional studies with or without randomization.
Systematic review and/or meta-analysis Any mention of the words “systematic review,” “systematic search,” “meta-analysis,” and “rapid systematic review” in the title and/or abstract.