This book is open access under a CC BY license.
This book is the first to develop explicit methods for evaluating
evidence of mechanisms in the field of medicine. It explains why it can
be important to make this evidence explicit, and describes how to take
such evidence into account in the evidence appraisal process. In
addition, it develops procedures for seeking evidence of mechanisms, for
evaluating evidence of mechanisms, and for combining this evaluation
with evidence of association in order to yield an overall assessment of
effectiveness.
Evidence-based medicine seeks to achieve improved health outcomes by
making evidence explicit and by developing explicit methods for
evaluating it. To date, evidence-based medicine has largely focused on
evidence of association produced by clinical studies. As such, it has
tended to overlook evidence of pathophysiological mechanisms and
evidence of the mechanisms of action of interventions.
The book offers a useful guide for all those whose work involves
evaluating evidence in the health sciences, including those who need to
determine the effectiveness of health interventions and those who need
to ascertain the effects of environmental exposures.