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Is evidence based patient choice feasible?

What could be more ordinary and humdrum (for a clinician) than a case of a woman with osteoarthritis of the knee? Yet a doctor's potential responses to her uncertainty about whether to take a non-steroidal anti-inflammatory drug (NSAID) or paracetomol has stimulated an interesting debate. Tugwell and colleagues have used this case to demonstrate the use of a decision aid as a tool in helping a patient to make an informed choice. The decision aid is clearly very patient centred. It asks the patient …