Effects of information framing on the intentions of family physicians to prescribe long-term hormone replacement therapy

Abstract

OBJECTIVE: To determine whether the way in which information on benefits and harms of long-term hormone replacement therapy (HRT) is presented influences family physicians' intentions to prescribe this treatment. DESIGN: Family physicians were randomized to receive information on treatment outcomes expressed in relative terms, or as the number needing to be treated (NNT) with HRT to prevent or cause an event. A control group received no information. SETTING: Primary care. PARTICIPANTS: Family physicians practicing in the Hunter Valley, New South Wales, Australia. INTERVENTION: Estimates of the impact of long-term HRT on risk of coronary events, hip fractures, and breast cancer were summarize..