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Lecture 6

Lecture 6 - Part I

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University of Toronto Scarborough
Health Studies
Caroline Barakat

Lecture 6 Principles of Health Research Types of Reviews Three main types (Sackett et al. 1991): Review synthesize the results and conclusions of 2 or more publications on a given topic Overview systematic literature review comprehensively identify and track down all the literature on a given topic Meta-analysis technique that combines pooled datasets from different studies and analyzes them in order to reach a single observation for the aggregated data Literature Reviews Major publications Basis of theoretical framework Proposed methodology Includes: 1. A conceptual framework and theoretical and empirical information 2. Major research findings, research questions, and gaps Objectives of Literature Review 1. To broaden the knowledge base 2. Gives information on methods and procedures Systematic Reviews scientific tool which can be used to summarize, appraise, and communicate the results and implications of otherwise unmanageable quantities of research (CRD Report 4) Published and unpublished grey literature. Aim: reduce bias Why are systematic reviews important? - Systematic approach in identification and evaluation of materials - Objectiveness in interpretation - Reproducibility Resources for Systematic Reviews Cochrane Collaboration: - Group of subject and methodology specialists who identify and synthesise the results of controlled trials and maintain their reviews - Developed a highly sensitive search strategy that has since been improved. ScHARR (School for Health And Related Research):
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