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

Table 2

Demographic profiles for study cohort as a whole and with respect to use or nonuse of dietary supplements (DS) and pharmaceuticals (Rx).

Demographic characteristic	Total sample; (𝑛=3876)	Neither DS nor Rx; (𝑛=474)	Any Rx; (𝑛=2622)	Any DS; (𝑛=2703)	Both DS and Rx; (𝑛=1923)
Gender
Female (%)	55.7	43.3^a	59.4^ab	59.4^ab	62.3^abc
Mean age (SD)	56.2 (12.4)	48.7 (10.2)^ab	58.6 (12.3)^ab	58.0 (12.2)^ab	60.2 (11.9)^abcd
Median income	$27,500–$29,999	$22,000–$22,499	$22,000–$22,499	$32,500–$34,999	$16,000–$17,999
Education (%)
HS-GED or less	33.2	31.0	36.2^a	31.1	34.0^d
Some college	28.8	27.6	29.1	28.2	29.9
College or more	38.0	41.4	34.7^ab	39.1	36.1^bd

^a𝑃<0.05 when compared to the total sample (column 2).
^b𝑃<0.05 when compared to “neither using DS (regularly) nor pharmaceuticals (in the last 30 days)” (column 3).
^c𝑃<0.05 when compared to “any Rx” (column 4).
^d𝑃<0.05 when compared to “any DS” (column 5).