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Critical appraisal of epidemiological studies and clinical trials
  1. Miguel Angel Martinez-Gonzalez

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    Mark Elwood. Published by Oxford University Press 2007 570 978-0-19-852955-2

    The skills to judge the validity of studies dealing with cause and effect relationships critically are a crucial requisite for career development in epidemiology, community medicine or public health.

    This book proposes a scheme for the critical appraisal of epidemiological studies and trials. This approach starts by describing the methods and results. Then, it considers three possible non-causal explanations: “observation” bias, confounding and chance. This system forces the investigator or the reader to think about the quality of the data and design and to appraise critically whether a truly causal explanation can be accepted. The aim is to build a logical system of critical appraisal, to allow readers to evaluate studies and to carry out their own studies more effectively. …

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