How to Search and Critique Scientific Evidence for Decision-Making
A clinical decision on the use of complementary and alternative medicine (CAM) should be made based on evidence-based medicine (EBM) together with practitioner's knowledge and experiences. This chapter describes the process of EBM, including how to address a clinical question, do a systematic search for appropriate evidence with key search terms, appraise the evidence and make a clinical decision on CAM applications. An effective literature search should be performed by using a structured search strategy in searching biomedical and CAM databases, such as the National Center for Complementary and Alternative Medicine (CAM Citation Index). Few standard tools are recommended to evaluate the quality of CAM studies, i.e. the CONSORT extension for herbal interventions and STRICTA for RCTs of acupuncture. Additionally, some guidelines for designing RCTs in Chinese herbal medicine (CHM) can also be adopted to critique CAM literature. A clinical decision on choosing optimal CAM for patient care should be based on the current best evidence emerged from the EBM process.