Table 1.

Characteristics according to vitamin C intake in a sub-sample of the Health Professionals Follow-up Study in 1994 (n=1,387)

	Total vitamin C intake, mg/d
	<90	90–249	250–499	500–999	≥1000
N	96	605	245	214	227
Dietary vitamin C intake1, mg/d	72.0	145	204	180	181
Use of vitamin C supplement, %	8.5	38.1	81.2	99.4	100
Vitamin C supplement1, mg/d	1.2	20.8	131	513	1263
Age1, y	59.3	61.2	61.7	61.6	60.7
Current smokers, %	12.5	5.1	3.7	4.2	5.8
Past smokers, %	50.0	45.7	40.5	47.8	51.6
BMI1, kg/m2	25.4	25.0	24.9	25.0	24.8
Caucasian, %	95.1	90.9	91.0	92.0	90.9
Systolic blood pressure1, mm Hg	125	124	123	123	122
Presence of gout, %	4.1	2.8	4.3	2.7	3.6
Use of aspirin, %	24.1	35.2	40.9	55.9	46.6
Total energy intake1, kcal/d	1839	2053	2106	2104	1954
Alcohol intake1, g/d	11.3	13.0	11.0	12.1	12.0
Fructose intake1, g/d	17.7	24.5	28.6	27.0	28.2
Dairy protein intake1, g/d	15.2	15.4	14.6	15.7	13.5
Total meat intake1, servings/d	1.4	1.3	1.2	1.1	1.1
Seafood intake1, servings/d	0.26	0.30	0.31	0.33	0.36
Coffee intake1, cups/d	2.6	2.0	1.8	2.1	2.0

¹Means