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. Author manuscript; available in PMC: 2018 Sep 17.
Published in final edited form as: J Nutr Health Aging. 2015 Dec;19(10):994–1002. doi: 10.1007/s12603-015-0518-8

Table 5.

Pearson’s correlations for micronutrient intakes between the estimates from the FFQ and the mean of 3d diet records for the participants in the Baltimore Longitudinal Study of Aging validation study

Nutrient All Men Women < 65 y ≥65 y
Energy
adjusted
De-
attenuated
Energy
adjusted
De-
attenuated
Energy
adjusted
De-
attenuated
Energy
adjusted
De-
attenuated
Energy
adjusted
De-
attenuated
Total Vitamin A Activity 0.34 0.45 0.34 0.44 0.34 0.45 0.33 0.45 0.35 0.46
Alpha-Carotene 0.37 0.50 0.38 0.51 0.38 0.51 0.35 0.52 0.38 0.49
Beta-Carotene Equivalents 0.37 0.51 0.36 0.51 0.36 0.51 0.38 0.57 0.37 0.50
Vitamin B-6 0.42 0.50 0.52 0.62 0.36 0.43 0.38 0.46 0.45 0.53
Vitamin B-12 0.35 0.45 0.43 0.56 0.27 0.35 0.31 0.44 0.36 0.45
Total Folate 0.46 0.55 0.53 0.64 0.39 0.46 0.41 0.50 0.49 0.57
Vitamin E 0.36 0.42 0.42 0.48 0.30 0.34 0.36 0.42 0.36 0.41
Vitamin C 0.46 0.56 0.48 0.58 0.44 0.53 0.48 0.61 0.45 0.53
Vitamin D 0.45 0.56 0.48 0.59 0.44 0.54 0.43 0.52 0.45 0.57
Vitamin E 0.36 0.41 0.41 0.47 0.30 0.35 0.37 0.43 0.35 0.40
Vitamin K 0.38 0.52 0.31 0.43 0.35 0.49 0.33 0.50 0.40 0.53
Calcium 0.56 0.65 0.57 0.66 0.52 0.61 0.57 0.65 0.54 0.64
Copper 0.42 0.49 0.46 0.54 0.37 0.44 0.39 0.47 0.43 0.50
Iron 0.40 0.47 0.43 0.51 0.36 0.43 0.44 0.51 0.38 0.45
Potassium 0.50 0.57 0.56 0.63 0.47 0.53 0.53 0.60 0.48 0.54
Sodium 0.27 0.32 0.20 0.23 0.33 0.39 0.26 0.31 0.27 0.32
Magnesium 0.60 0.67 0.64 0.72 0.59 0.66 0.59 0.67 0.60 0.67
Manganese 0.59 0.68 0.68 0.77 0.52 0.59 0.53 0.61 0.63 0.71
Selenium 0.36 0.47 0.31 0.40 0.39 0.49 0.42 0.56 0.33 0.41
Zinc 0.31 0.39 0.25 0.32 0.36 0.45 0.41 0.50 0.26 0.33
Phosphorus 0.52 0.60 0.56 0.65 0.50 0.59 0.54 0.63 0.49 0.57
Average correlations 0.42 0.51 0.44 0.54 0.40 0.48 0.42 0.52 0.42 0.50