Table 1 Average nutrient intakes and correlation coefficients between values derived from the R24W and the interview-administered 24-h recall (N = 111)

Energy (kcal)

2658.0

1128.0

2444.0

998.1

8.8*

0.52 (< 0.01)

Carbohydrates (g)

347.7

154.7

327.5

142.7

6.2

0.44 (< 0.01)

Fat (g)

100.2

55.6

85.2

40.5

17.6*

0.46 (< 0.01)

Proteins (g)

101.3

39.1

99.5

41.7

1.8

0.46 (< 0.01)

% E Carbohydrates

52.7

9.2

53.9

7.5

-2.2

0.24 (0.01)

% E Fat

32.8

7.8

30.8

7.0

6.5*

0.24 (0.01)

% E Proteins

15.8

4.1

16.5

3.5

-4.2

0.16 (0.09)

Fibres (g)

21.7

12.5

22.6

13.2

-4.0

0.43 (< 0.01)

Vitamin A (mcg)

749.9

583.5

827.1

804.5

-9.3

0.30 (< 0.01)

Thiamin (mg)

2.1

1.0

2.0

1.0

5.0

0.13 (0.16)

Riboflavin (mg)

2.5

1.4

2.3

1.2

8.7

0.49 (< 0.01)

Niacin (mg NE)

46.3

17.8

44.5

17.5

4.0

0.39 (< 0.01)

Vitamin B6 (mg)

1.9

0.8

1.9

0.9

0.0

0.27 (< 0.01)

Folate (mcg DFE)

547.4

288.7

521.0

243.0

5.1

0.27 (< 0.01)

Vitamin B12 (mcg)

5.3

3.3

4.9

3.1

8.2

0.40 (< 0.01)

Vitamin C (mg)

182.9

103.8

207.9

141.9

-12.0

0.43 (< 0.01)

Vitamin D (mcg)

5.7

4.8

5.4

4.2

5.6

0.38 (< 0.01)

Magnesium (mg)

359.9

173.2

346.3

180.2

3.9

0.44 (< 0.01)

Phosphorus (mg)

1695.0

779.2

1600.7

809.5

5.9

0.50 (< 0.01)

Zinc (mg)

13.9

6.3

12.5

6.3

11.2*

0.45 (< 0.01)

Iron (mg)

17.4

8.3

16.9

8.6

3.0

0.51 (< 0.01)

Calcium (mg)

1291.7

770.0

1188.4

738.0

8.7

0.32 (< 0.01)

Potassium (mg)

3241.5

1374.0

3396.1

1670.0

-4.6

0.36 (< 0.01)

Saturated fat (g)

38.3

22.0

30.6

16.0

25.2***

0.43 (< 0.01)

Sodium (mg)

3513.4

1916.0

3748.3

2093.0

-6.3

0.31 (< 0.01)

Total sugars (g)

164.1

77.3

132.3

59.8

24.0***

0.45 (< 0.01)

Mean

SD

4.5

8.9

0.38

0.11