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Table 1 Population characteristics according to dietary total antioxidant capacity (TAC) E3N Cohort, France 1993–2008

From: High dietary total antioxidant capacity is associated with a reduced risk of hypertension in French women

  Dietary total antioxidant capacity (TAC) (mmol/day)
Characteristics Q1(<  8.2) Q2 (8.2–14.4) Q3 (14.4–21.1) Q4 (21.1–29.9) Q5 (>  29.9)
Dietary TAC Intake: mmol/d (SD) 5.2 (1.7) 11.3 (1.8) 17.7 (1.9) 25.1 (2.5) 42.1 (12.7)
Risk factors
 Age at 2003: years (SD) 52.0 (6.2) 52.3 (6.5) 51.7 (6.2) 51.4 (6.1) 50.7 (5.6)
 Body mass index: kg / m2 (SD) 21.8 (2.6) 22.1 (2.6) 22.2 (2.7) 22.4 (2.7) 22.5 (2.8)
 Diabetes n (%) 46 (0.57) 36 (0.44) 38 (0.47) 34 (0.42) 38 (0.47)
 Hypercholesterolemia: n (%) 397 (4.89) 362 (4.46) 404 (4.98) 402 (4.95) 339 (4.18)
Smoking: n (%)
 Never 5338 (65.78) 4523 (55.74) 4200 (51.75) 3806 (46.90) 3282 (40.44)
 Former 2255 (27.79) 2744 (33.81) 2827 (35.83) 2960 (36.48) 2945 (36.29)
 Current 522 (6.43) 848 (10.45) 1089 (13.42) 1349 (16.62) 1888 (23.27)
Education: n (%)
 With high school diploma: n (%) 7239 (89.21) 7369 (90.81) 7301 (89.96) 7350 (90.57) 7356 (90.65)
 Family history of hypertension: n (%) 2397 (29.54) 2258 (27.83) 2348 (28.93) 2273 (28.01) 2364 (29.13)
 Physical activity: METS/week (SD) 53.7 (29.2) 53.7 (29.5) 53.8 (29.4) 55.0 (30.0) 54.8 (30.7)
Dietary factors mean (SD)
 Energy without alcohol (kcal / d) 2050.6 (516.6) 2105.7 (514.6) 2116.6 (523.8) 2148.0 (543.0) 2216.0 (577.0)
 Alcohol (g / day) 6.1 (8.1) 10.8 (12.3) 12.4 (13.4) 13.8 (15.0) 14.4 (16.0)
 Coffee intake (ml / day) 16.8 (28.2) 111.3 (60.9) 242.1 (61.5) 384.8 (65.6) 708.6 (249.2)
 Potassium (mg / day) 3637.6 (1043.2) 3760.0 (1006.1) 3759.6 (969.7) 3859.1 (941.7) 4229.3 (1072.0)
 Magnesium (mg / day) 317.6 (84.1) 365.1 (81.0) 415.1 (76.7) 479.7 (77.0) 625.5 (136.2)
 Omega-3 fatty acids (mg / day) 1.41 (0.50) 1.48 (0.52) 1.51 (0.54) 1.55 (0.54) 1.61 (0.57)
 Sodium (mg / day) 2749.2 (893.6) 2796.1 (878.2) 2805.9 (871.9) 2847.8 (891.6) 2924.5 (942.6)
 Western diet - 0.3 (0.8) - 0.2 (0.8) 0.0 (0.9) 0.1 (0.9) 0.3 (1.1)
 Healthy diet - 0.1 (0.9) 0.0 (1.0) 0.1 (0.9) 0.0 (1.0) 0.1 (1.0)