Physician-patient Communication About Dietary Supplements
Published in: Patient Education and Counseling, v. 91, no. 3, June 2013, p. 287-294
Posted on RAND.org on January 01, 2013
OBJECTIVE: Describe the content and frequency of provider–patient dietary supplement discussions during primary care office visits. METHODS: Inductive content analysis of 1477 transcribed audio-recorded office visits to 102 primary care providers was combined with patient and provider surveys. Encounters were collected in Los Angeles, CA (2009–2010), geographically diverse practice settings across the United States (2004–2005), and Sacramento, CA (1998–1999). RESULTS: Providers discussed 738 dietary supplements during encounters with 357 patients (24.2% of all encounters in the data). They mentioned: (1) reason for taking the supplement for 46.5% of dietary supplements; (2) how to take the supplement for 28.2%; (3) potential risks for 17.3%; (4) supplement effectiveness for 16.7%; and (5) supplement cost or affordability for 4.2%. Of these five topics, a mean of 1.13 (SD = 1.2) topics were discussed for each supplement. More topics were reviewed for non-vitamin non-mineral supplements (mean 1.47 (SD = 1.2)) than for vitamin/mineral supplements (mean 0.99 (SD = 1.1); p < 0.001). CONCLUSION: While discussions about supplements are occurring, it is clear that more discussion might be needed to inform patient decisions about supplement use. PRACTICE IMPLICATIONS: Physicians could more frequently address topics that may influence patient dietary supplement use, such as the risks, effectiveness, and costs of supplements.
This report is part of the RAND Corporation External publication series. Many RAND studies are published in peer-reviewed scholarly journals, as chapters in commercial books, or as documents published by other organizations.
The RAND Corporation is a nonprofit institution that helps improve policy and decisionmaking through research and analysis. RAND's publications do not necessarily reflect the opinions of its research clients and sponsors.