© 2002 American Public Health Association
Bentson McFarland, Douglas Bigelow, and Brigid Zani are with the Department of Psychiatry, Oregon Health and Science University, Portland. Jason Newsom and Mark Kaplan are with the School of Community Health, Portland State University, Portland, Ore. Correspondence: Requests for reprints should be sent to Bentson McFarland, MD, PhD, Department of Psychiatry, OP-02, Oregon Health and Science University, Portland, OR 97201 (e-mail: mcfarlab{at}ohsu.edu).
Use of complementary and alternative medicine (CAM) has stimulated discussion in both Canada14 and the United States512 on topics such as who might benefit from CAM insurance coverage and the role of CAM as a substitute for use of conventional medical treatment vs a supplement to such treatment. In the United States, members of racial or ethnic minority groups are less likely to use CAM than are White people, and elevated income is a strong predictor of CAM use.5,6,8 In the United States (unlike in Canada), race and ethnicity are related closely to health insurance status.13 In both Canada4 and the United States,5,6,8 CAM use appears higher in western regions than in other areas. In Canada, western provinces are much more likely than those in the east to cover CAM in their health programs.1 In the United States, some 42 states mandate coverage of chiropractic care in private insurance,9 whereas federal legislation mandates coverage for all people older than 65 years (in the Medicare program) as well as for individuals whose health insurance is provided by large employers regulated under the Employee Retirement Income Security Act.14 This study examined relationships between race, geography, and conventional medical care and the use of acupuncture, chiropractic, homeopathy/naturopathy, and massage therapy.
Data were obtained from the 1996 Canadian National Population Health Survey, which had a response rate of 83%.15 Canadian CAM users in the first (1994) wave of this survey have been described previously.4 Information was also obtained from the 1996 United States Medical Expenditure Panel Survey, which had a response rate of 78%.16 Data from this survey have been employed in other studies on CAM use in the United States.8,10 Each countrys data set was analyzed by means of logistic regression with the SUDAAN computer program (release 7.5.4; Research Triangle Institute, Research Triangle Park, NC).
Table 1
In both countries, there was little use of acupuncture, homeopathy/naturopathy, or massage therapy. Chiropractic was the most frequently used CAM treatment in both countries, with Canadian use being 3 times that in the United States. Respondents in both countries were very unlikely to have seen only a CAM provider.
Table 2
Despite notable differences between Canada and the United States,1719 these countries seem rather similar with regard to CAM use. The racial/ethnic disparity in CAM use that has been found in the United States5,6,8 also is seen in Canada. The striking geographic differences in CAM use across Canada were also found in the United States. Whereas Canadian regional variation in CAM consumption might be explained by differences in provincial health insurance,4 such an explanation seems unlikely in the United States. In both countries, CAM appears to be an add-on rather than an alternative to conventional medical care. This cross-sectional projects limitations included inability to verify service use reports and difficulty in determining causality. Many of the survey items were identical in Canada and the United States, but there were a few differences. Nonetheless, as in other aspects of medical care,20,21 comparisons between Canada and the United States can stimulate fruitful discussion and investigation regarding optimal provision of complementary health care services.
This project was supported in part by grants from the Canadian Embassy and the US National Institute of Mental Health (R03 MH 59719) (to M. K.). This analysis is based on Statistics Canadas National Population Health Survey 19961997, Household Component, Public Use Microdata Files, which contain anonymous data, and on the US Agency for Healthcare Research and Qualitys Medical Expenditure Panel Survey, 1996. All computations on these data were prepared by Oregon Health and Science University and Portland State University. Responsibility for the use and interpretation of these data is entirely that of the authors.
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B. McFarland, D. Bigelow, and M. Kaplan conceptualized the analysis. B. Zani and J. Newsom conducted the data analysis and produced the tables. B. McFarland, D. Bigelow, B. Zani, and M. Kaplan drafted the brief, which was reviewed and finalized by all of the authors. Accepted for publication June 4, 2002.
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20. Kessler RC, Frank RG, Edlund M, Katz SJ, Lin E, Leaf P. Differences in the use of psychiatric outpatient services between the United States and Ontario. N Engl J Med. 1997;336:551557.
21. Katz SJ, Zemencuk JK, Hofer TP. Breast cancer screening in the United States and Canada, 1994: socioeconomic gradients persist. Am J Public Health. 2000;90:799803. This article has been cited by other articles:
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