However, he said the findings do reflect communication gaps in current practice.
Doctors hesitate to tell patients something obvious, such as the need to lose weight, and like patients, they feel uncomfortable discussing the subject, said Barber.
"It's safe to say that the things this study measured -- education, weight loss, exercise -- we know they help patients. But how do we get doctors to talk freely and easily with patients?" he asked.
The U.S. National Library of Medicine offers basic facts about arthritis.
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