Table 1b.

Baseline characteristics of the NIH-AARP Diet and Health Study by age and dietary mineral intakes

Variable	Mean (SD)	Median	Range
Age
All	62.0 (5.4)	62.6	50.3–71.5
Men	62.2 (5.3)	62.8	50.3–71.5
Women	61.9 (5.4)	62.3	50.3–71.5
Calories, kcal
All	1,821.2 (775.8)	1,684.9	322.6–6,125.6
Men	1,999.2 (813.3)	1,861.4	419.1–6,125.6
Women	1,557.4 (630.2)	1,453.3	322.6–4,802.9
Alcohol, g
All	12.4 (31.8)	1.9	0–684.8
Men	16.8 (38.8)	3.6	0–684.8
Women	5.9 (16.1)	0.9	0–534.8
Calcium, mg†
All	1,001.6 (553.4)	872.8	95.3–5,010.5
Men	946.6 (511.1)	828.4	122.2–4,939.4
Women	1,083.3 (601.5)	961.8	95.3–5,010.5
Magnesium, mg†
All	374.1 (140.1)	357.2	63.5–1,183.1
Men	394.1 (144.7)	376.5	79.8–1,183.1
Women	344.3 (127.2)	330.9	63.5–1,052.4
Iron, mg†
All	23.7 (11.6)	23.2	2.1–84.6
Men	24.5 (11.9)	23.5	2.9–84.6
Women	22.4 (11.2)	22.9	2.1–76.1
Copper, mg†
All	2.3 (1.2)	2.2	0.3–8.4
Men	2.4 (1.2)	2.2	0.3–8.4
Women	2.3 (1.2)	2.3	0.3–7.7
Selenium, μg†
All	102.3 (43.1)	95.7	12.9–352.4
Men	111.2 (44.9)	104.4	17.8–352.5
Women	89.1 (36.6)	83.9	12.9–287.7
Zinc, mg†
All	17.7 (9.3)	17.4	1.6–67.0
Men	18.4 (9.5)	17.4	2.1–67.0
Women	16.7 (8.9)	17.4	1.6–58.3

^†Values are for total intake (from diet and supplements).