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. 2010 Aug 3;2(8):834–854. doi: 10.3390/nu2080834

Table 1.

Characteristics of NHANES I and NHANES III datasets.

NHANES I (1971–1975) NHANES III (1988–1994)
Sample size 20,195 28,663
Age range 1–74 y 1–90 y
Individual food intake data 353,664 430,050
Number of individual foods 3,462 7,096
in the data set
Numbers of total sugar is _ 4,000
greater than 0 in NHANES III
Numbers of added sugar is _ 2,226
greater than 0 in NHANES III
Number of consumed foods 1,823 4,732
Number of non-matched foods 12a _
Number of matched foods 1,811 _
Nutrient variables in the dataset energy, protein, fat, carbohydrate, saturated fatty acid, energy, protein, fat, carbohydrate, saturated fatty acid, oleic acid,
oleic acid, linoleic acid, cholesterol, vitamin A, linoleic acid, linolenic acid, monounsaturated fatty acid, polyunsaturated
thiamin, riboflavin, niacin, vitamin C, calcium, fatty acid, cholesterol, fiber, alcohol, vitamin A, retinol, β-carotene,
Phosphorus, iron, sodium, potassium tocopherol, thiamin, riboflavin, niacin, vitamin B6, vitamin B12, folate,
vitamin C, calcium, phosphorus, manganese, iron, sodium, potassium,
glucose, fructose, galactose, sucrose, lactose, maltose, sugar, added sugar
Matched variables with NHANES III sugar, added sugar, fiber, β-carotene, folate, _
food composition table vitamin B6, vitamin B12

a 12 food items in the individual food consumption data file of NHANES I could not be matched, because these items were not described in the food description file of NHANES I.