TABLE 1.

Baseline demographic and health characteristics and dietary factors by quartile of the dietary fructose:vitamin C intake ratio in African-American adults¹

	Quartile of fructose:vitamin C intake ratio
	Overall study population	Quartile 1: 0.0–0.1	Quartile 2: 0.1–0.2	Quartile 3: 0.2–0.3	Quartile 4: 0.3–4.6
	(n = 4576)	(n = 1144)	(n = 1144)	(n = 1144)	(n = 1144)
Age, y	55.5 ± 12.6	58.3 ± 12.0	55.3 ± 12.7	54.3 ± 13.0	54.2 ± 12.5
Male sex, %	35.4	31.8	35.7	38.5	35.7
BMI, kg/m2	31.8 ± 7.2	31.6 ± 7.1	31.8 ± 6.8	31.6 ± 7.3	32.1 ± 7.7
Waist circumference, cm	100.6 ± 16.1	100.6 ± 16.3	100.5 ± 15.3	100.2 ± 16.6	101.0 ± 16.0
Systolic blood pressure, mm Hg	126.9 ± 18.2	127.1 ± 17.6	126.0 ± 17.5	127.5 ± 18.9	127.1 ± 18.9
eGFR, mL/(min × 1.73 m2)	94.0 ± 21.7	91.8 ± 21.3	93.9 ± 21.6	94.9 ± 22.4	95.6 ± 21.2
Smoking status, %
Current smoker	12.3	10.1	10.5	11.5	17.1
Former smoker	18.7	21.7	17.0	16.3	19.8
Never smoker	69.0	68.3	72.6	72.2	63.1
Hypertension (yes), %	60.1	64.5	60.8	58.7	56.6
Diabetes (yes), %	21.7	28.5	25.1	18.0	15.2
Diuretic medication use, %	32.6	38.4	33.7	28.8	29.7
Vitamin C supplement use, %	9.0	30.2	3.0	1.9	1.0
Fructose:vitamin C intake ratio, g/mg	0.20 (0.13–0.30)	0.08 (0.04–0.11)	0.16 (0.14–0.18)	0.24 (0.22–0.27)	0.44 (0.36–0.62)
Intakes of
Fructose, g/d	24.2 (14.9–39.2)	15.3 (10.0–24.4)	20.0 (12.7–28.6)	28.2 (19.0–39.7)	43.0 (28.2–65.5)
Vitamin C, mg/d	120 (78–191)	216 (116–606)	123 (82–176)	116 (80–163)	84 (58–123)
Energy, kcal/d	2235 ± 911	2056 ± 891	2152 ± 875	2339 ± 913	2393 ± 923
Alcohol, g/d	3.8 ± 11.9	3.5 ± 10.9	3.4 ± 9.5	4.3 ± 12.6	4.1 ± 14.0
Animal protein, g/d	49.7 ± 28.9	47.1 ± 29.7	48.7 ± 28.2	51.7 ± 28.2	51.2 ± 29.2
SSBs, mL/d	561 ± 792	232 ± 395	307 ± 450	572 ± 677	1130 ± 1096

¹Values are means ± SDs, medians (IQRs), or percentages. eGFR, estimated glomerular filtration rate; SSB, sugar-sweetened beverage.