The Overlap of Dietary Supplement and Pharmaceutical Use in the MIDUS National Study

Table 1

Demographics and DS use in four national surveys.

	National Health and Nutrition Examination Survey (NHANES)	National Health Interview Survey (NHIS)	American Association of Retired Persons (AARP)	Midlife in the United States (MIDUS 2)
Years	2007-2008	2002, 2007	2006	2004–2007
Number of participants	3364	30,427 (2002), 22,657 (2007)	1559	5895
Ages	20–69	18+	50+	35–86
DS included*	HM, M, V, O	HM, O	HM, O	HM, M, V, O
% using DS	47.7	17–19	42	69.7%
Reference	Kennedy et al., 2013 [22]	Wu et al., 2011 [23]; Barnes et al., 2009 [1]; Hanyu et al., 2002 [24]	AARP and the National Center for Complementary and Alternative Medicine, 2007 [25]	Dienberg Love et al., 2010 [21]; Radler and Ryff, 2010 [20]

∗DS: dietary supplement; HM: herbal medicine, M: minerals, V: vitamins, O: other dietary supplements.