Table 3

Correlations between FFQ-derived estimates and biomarkers
Men Women
FFQ-estimated daily dietary intakes Biomarkers Crude Energy-adjusted model I Energy-adjusted model II£ Crude Energy-adjusted model I Energy-adjusted model II£
Food groups Fruits (g) β-carotene (mg/L) 0.12† 0.13† 0.11† 0.15† 0.14† 0.1†
Vegetables (g) β-carotene (mg/L) 0.17‡ 0.18‡ 0.18‡ 0.11† 0.08† 0.11†
Fruits and vegetables (g) β-carotene (mg/L) 0.18‡ 0.19‡ 0.17‡ 0.14† 0.13† 0.1†
Micro-nutrients Vitamin B12 (μg) B12 (pg/ml) 0.06 0.13† 0.12† 0.11† 0.1† 0.09†
Vitamin B9 (μg) Serum folates (ng/ml) 0.27‡ 0.35‡ 0.29‡ 0.28‡ 0.36‡ 0.32‡
Vitamin B9 (μg) Erythrocyte folates (ng/ml) 0.28‡ 0.32‡ 0.25‡ 0.23‡ 0.36‡ 0.25‡
Vitamin D (μg) 25-OH Vitamine D (ng/ml) 0.26† 0.28† 0.07† 0.55‡ 0.54‡ 0.06
Vitamin E (mg) α-tocopherol (mg/L) 0.05 0.13† 0.09† 0.11† 0.11† 0.05
Iron (mg) Iron (μmol/L) -0.08 -0.04 -0.05 0.09† 0.07 0.06
Iron (mg) Ferritine (ng/ml) -0.04 0.04 0.02 0.004 0.007 0.03
Iron (mg) Transferrine (g/L) 0.04 0.03 0.01 0.01 0.03 0.02
Iodine (μg) Iode/Creatinine ratio (μg/g) 0.11† 0.15† 0.11† 0.2‡ 0.23‡ 0.22‡
β-carotene (μg) β-carotene (mg/L) 0.18‡ 0.2‡ 0.2‡ 0.22‡ 0.22‡ 0.22‡
Sodium (mg) Urine sodium (mmol/L) 0.06 0.1† 0.07 0.11† 0.12† 0.1

£Correlations were adjusted for age, BMI, current smoking and specific micro-nutrient supplement use.

‡P < 0.001.

†P < 0.05.

Sauvageot et al.

Sauvageot et al. Nutrition Journal 2013 12:143   doi:10.1186/1475-2891-12-143

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