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Table 3 Daily intake of nutrients estimated by the average 3 R24, FFQ.1 and FFQ.2

From: Design and validation of a food frequency questionnaire (FFQ) for the nutritional evaluation of food intake in the Peruvian Amazon

Energy and nutrients

R24

FFQ.1

FFQ.2

Mean

Median

SD

Mean

Median

SD

Mean

Median

SD

Energy (Kcal)

1988.2

1924.5

751.4

2058.1

1990.5

846.8

2069.8

2006.5

809.8

Proteins (g)

96.6b

82.2

45.9

105.2

89.8

45.7

107.8

100.3

50.7

Fats (g)

88.1a

91.2

28.7

88.8

92.1

30.6

90.2

91.9

32.3

Carbohydrates (g)

273.3b

244.5

122.6

302.4

287.2

130.1

308.1

286.5

146.0

Ca (mg)

535.4

518.7ªb

221.4

634.9

551.9b

345.3

924.4

886.3

367.8

P (mg)

1028.3

879 ªb

506.8

1274.8

1140.5b

651.2

1362.8

1143

697.2

Na (mg)

3909.0

3133.5

2067

4513.3

3809.5

2346

4414.4

3672.5

2206

K (mg)

2482.3

2720ªb

1284.6

2779.6

2376.5

1343.7

2840.9

2720

1284.6

Fe (mg)

7.8

7.5ªb

2.7

9.0

8.5

4.1

9.0

8.9

3.9

Tiamin (mg)

1.7

1.7a

0.9

1.9

1.8

0.9

1.9

1.8

0.8

Riboflavin (mg)

2.1

1.7ab

1.5

2.3

2.0b

2.5

1.2

0.7

1.4

Vitamin B6 (mg)

1.9

1.7a

1.1

2.0

2.0

1.1

2.0

1.7

1.2

Folic Acid (μg)

198.4

155.1ab

134.5

227.9

216.1

126.8

217.0

165.9

134.1

Vitamin B12 (μg)

4.4

2.5ab

4.0

6.9

6.0b

3.7

5.4

4.0

4.4

Vitamin C (mg)

116.7

92.8ab

72.4

146.7

129.0

84.0

134.1

123.2

73.5

Vitamin A (μg of RE)

320.4

314.0a

124.1

594.6

346.0

878.3

572.3

305.2

1056.5

Vitamin D (μg)

1.0

0.5ab

1.8

1.0

0.7

0.7

1.0

0.8

0.7

  1. aSignificant differences (p < 0.05) for FFQ.1
  2. bSignificant differences (p < 0.05) for FFQ.2
  3. abSignificant differences (p < 0.05) for both FFQ