Changes in herb and dietary supplement use in the US adult population

A comparison of the 2002 and 2007 national health interview surveys

Chung Hsuen Wu, Chi Chuan Wang, Jae Kennedy

Research output: Contribution to journalArticle

101 Citations (Scopus)

Abstract

Background: Past national surveys indicate that use of herbs and dietary supplements rose rapidly in the United States during the 1990s and early 2000s. Additional research is needed to determine whether this growth rate and associated patterns of use have persisted over time. Objectives: The objectives of this study were: (1) to assess population and subpopulation changes in rates of herb and supplement use; and (2) to assess changes in rates of disclosure of herb and supplement use to conventional medical providers. Methods: This study used data from the 2002 (n = 30,427) and 2007 (n = 22,657) Adult Complementary and Alternative Medicine File to the National Health Interview Survey (NHIS). Weighted group and subgroup comparisons used the Wald χ 2 tests to compare differences in herb and supplement use between 2002 and 2007. Results: The number of adults in the United States that ever used herbs or supplements grew slightly, from 50.6 million in 2002 to 55.1 million in 2007. However, the proportion of adults who reported use of herbs or supplements in the past 12 months dropped significantly: from 18.9% in 2002 to 17.9% in 2007 (P <0.05). Subpopulation comparisons revealed that younger adults were less likely to use herbs and supplements in 2007 (17.6%) than in 2002 (20.0%), whereas older adults (ie, those aged ≥65 years) were more likely to do so (19.5% in 2007 vs. 13.2% in 2002). Racial and ethnic minorities also reported a significant decline in recent use. The proportion of respondents that disclosed herb or supplement use to their physician or another conventional medical professional rose, from 33.4% in 2002 to 45.4% in 2007. However,

Original languageEnglish
Pages (from-to)1749-1758
Number of pages10
JournalClinical Therapeutics
Volume33
Issue number11
DOIs
Publication statusPublished - Nov 2011
Externally publishedYes

Fingerprint

Complementary Therapies
Dietary Supplements
Health Surveys
Interviews
Disclosure
Population
Young Adult
Physicians
Growth
Research
Surveys and Questionnaires

Keywords

  • Complementary and alternative medicine
  • Health care utilization
  • Herbal medicines
  • Herbs

ASJC Scopus subject areas

  • Pharmacology
  • Pharmacology (medical)

Cite this

Changes in herb and dietary supplement use in the US adult population : A comparison of the 2002 and 2007 national health interview surveys. / Wu, Chung Hsuen; Wang, Chi Chuan; Kennedy, Jae.

In: Clinical Therapeutics, Vol. 33, No. 11, 11.2011, p. 1749-1758.

Research output: Contribution to journalArticle

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abstract = "Background: Past national surveys indicate that use of herbs and dietary supplements rose rapidly in the United States during the 1990s and early 2000s. Additional research is needed to determine whether this growth rate and associated patterns of use have persisted over time. Objectives: The objectives of this study were: (1) to assess population and subpopulation changes in rates of herb and supplement use; and (2) to assess changes in rates of disclosure of herb and supplement use to conventional medical providers. Methods: This study used data from the 2002 (n = 30,427) and 2007 (n = 22,657) Adult Complementary and Alternative Medicine File to the National Health Interview Survey (NHIS). Weighted group and subgroup comparisons used the Wald χ 2 tests to compare differences in herb and supplement use between 2002 and 2007. Results: The number of adults in the United States that ever used herbs or supplements grew slightly, from 50.6 million in 2002 to 55.1 million in 2007. However, the proportion of adults who reported use of herbs or supplements in the past 12 months dropped significantly: from 18.9{\%} in 2002 to 17.9{\%} in 2007 (P <0.05). Subpopulation comparisons revealed that younger adults were less likely to use herbs and supplements in 2007 (17.6{\%}) than in 2002 (20.0{\%}), whereas older adults (ie, those aged ≥65 years) were more likely to do so (19.5{\%} in 2007 vs. 13.2{\%} in 2002). Racial and ethnic minorities also reported a significant decline in recent use. The proportion of respondents that disclosed herb or supplement use to their physician or another conventional medical professional rose, from 33.4{\%} in 2002 to 45.4{\%} in 2007. However,",
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