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Table 4 Median, interquartile range, Wilcoxon test, quintiles comparison and weighted kappa of energy and nutrients daily intakes

From: The web-based ASSO-food frequency questionnaire for adolescents: relative and absolute reproducibility assessment

Nutrients

ASSO-FFQ1

ASSO-FFQ2

     
 

Median

First quartile

Third quartile

Median

First quartile

Third quartile

Difference between mediansa

% correctly classified

% correctly or adjacent classified

% all the others

Weighted kappa

Energy (kcal)

3 245.15

2 346.47

4 458.82

2 996.25

1 817.75

4 099.51

248.90

32

69

31

0.38

Total fat (g)

140.39

98.15

200.76

134.06

79.60

185.78

6.33

29

73

27

0.39

 SFA (g)

69.23

44.80

171.09

70.41

43.37

165.40

-1.18

41

74

26

0.47

  Myristic acid (g)

1.48

1.05

2.30

1.48

0.93

2.13

0.00

31

66

34

0.40

  Palmitic acid (g)

18.16

12.63

26.69

17.65

10.23

25.15

0.52

30

72

28

0.45

  Stearic acid (g)

8.23

5.92

12.59

7.74

4.77

11.37

0.50

32

73

27

0.46

 MUFA (g)

66.32

43.55

95.77

64.69

38.12

91.91

1.63

32

65

35

0.41

  Oleic acid (g)

34.80

24.51

50.12

35.18

22.15

48.81

-0.38

29

65

35

0.40

 PUFA (g)

26.25

16.07

47.41

25.18

13.94

48.69

1.07

32

64

36

0.32

  Linoleic acid (g)

22.83

13.30

42.37

21.47

11.90

41.30

1.36

37

65

35

0.32

  Linolenic acid (g)

1.20

0.80

1.66

1.10

0.68

1.54

0.10

33

73

27

0.45

  Arachidonic acid (g)

0.16

0.11

0.22

0.14

0.10

0.25

0.02

33

72

28

0.51

  EPA (g)

0.08

0.04

0.17

0.09

0.04

0.16

-0.01

39

75

25

0.58

  DHA (g)

0.16

0.08

0.34

0.18

0.07

0.33

-0.03

44

75

25

0.62

 TFA (g)

0.90

0.58

1.43

0.92

0.54

1.33

-0.02

32

71

29

0.40

 Cholesterol (mg)

318.45

227.24

491.17

293.57

184.76

449.79

24.89

32

72

28

0.45

Proteins (g)

118.49

85.74

168.40

112.11

69.29

154.62

6.38

35

70

30

0.45

 Arginine (g)

5.18

3.79

7.17

5.22

3.24

7.20

-0.04

32

70

30

0.49

 Cystine (g)

1.30

0.97

1.73

1.28

0.77

1.73

0.02

31

69

31

0.49

 Phenylalanine (g)

4.24

3.19

5.97

4.19

2.60

5.70

0.05

35

75

25

0.50

 Isoleucine (g)

3.98

2.95

5.44

3.67

2.36

5.48

0.31

30

73

27

0.50

 Histidine (g)

2.93

2.23

4.13

2.94

1.90

4.13

-0.02

32

71

29

0.49

 Leucine (g)

12.88

7.49

23.11

12.79

6.87

24.33

0.10

35

68

32

0.42

 Lysine (g)

12.64

6.83

22.55

12.33

6.55

23.53

0.31

32

70

30

0.41

 Methionine (g)

2.97

1.97

4.07

2.76

1.87

3.98

0.21

33

73

27

0.51

 Tyrosine (g)

3.40

2.57

4.85

3.31

2.13

4.64

0.09

34

72

28

0.51

 Threonine (g)

3.58

2.64

5.03

3.58

2.21

4.89

0.00

34

75

25

0.50

 Tryptophan (g)

1.45

0.95

1.96

1.35

0.92

1.92

0.10

36

73

27

0.51

 Valine (g)

4.68

3.48

6.37

4.26

2.74

6.41

0.43

30

73

27

0.50

Carbohydrates (g)

361.98

260.25

503.68

339.96

202.30

447.99

22.03*

30

69

31

0.36

 Sugar (g)

104.97

74.41

152.52

95.27

65.08

133.47

9.71*

28

70

30

0.46

  Fructose (g)

13.82

7.74

24.99

12.71

7.14

24.61

1.11

34

75

25

0.52

  Lactose (g)

10.17

3.14

13.95

7.22

2.24

13.14

2.95

46

80

20

0.59

  Sucrose (g)

11.99

8.44

17.25

11.25

7.22

16.62

0.74

39

77

23

0.54

 Starch (g)

101.81

72.13

161.65

100.26

61.52

147.31

1.55

30

67

33

0.41

 Fiber (g)

32.00

21.18

42.70

29.03

17.97

40.98

2.97

37

68

32

0.41

Water (ml)

1 342.20

912.43

1 743.27

1 161.84

804.77

1 768.61

180.36

39

75

25

0.48

Calcium (mg)

1 079.31

698.31

1 486.43

979.70

593.06

1 452.65

99.61

31

70

30

0.42

Phosphorus (mg)

1 629.90

1 195.17

2 268.23

1 570.07

995.03

2 134.50

59.83

38

73

27

0.47

Iron (mg)

23.34

15.61

30.55

21.94

13.74

31.80

1.40

35

66

34

0.40

Magnesium (mg)

346.07

239.18

460.32

316.80

205.82

446.47

29.27

40

71

29

0.46

Vitamin A (RAE)

650.08

389.61

1 008.94

613.63

310.69

1 005.83

36.45

31

73

27

0.50

Thiamine (mg)

1.74

1.24

2.51

1.59

1.03

2.45

0.15

39

70

30

0.51

Riboflavin (mg)

2.13

1.51

2.93

2.04

1.34

3.16

0.09

33

70

30

0.46

Niacin (mg)

118.13

78.78

229.63

122.50

67.88

208.29

-4.37

36

78

22

0.57

Vitamin B6 (mg)

2.70

1.86

3.81

2.50

1.59

4.02

0.20

37

74

26

0.46

Folate (μg)

264.65

173.93

387.41

236.81

172.02

363.14

27.84

35

70

30

0.46

Vitamin B12 (μg)

8.34

5.70

11.38

8.52

4.65

12.51

-0.18

33

78

22

0.56

Vitamin C (mg)

132.87

83.73

190.89

110.75

78.79

179.34

22.13

36

67

33

0.47

Vitamin D (IU)

3.84

2.20

5.92

3.85

1.85

6.28

-0.01

39

75

25

0.60

Vitamin E (mg)

355.96

243.52

452.40

318.30

208.20

476.98

37.66

34

70

30

0.45

Ethanol (g)

1.83

0.37

6.17

1.85

0.37

7.17

-0.01

56

90

10

0.72

Caffeine (mg)

19.81

5.82

40.30

15.57

4.44

36.17

4.25

42

85

15

0.66

  1. *P < 0.05; **P < 0.01; ***P < 0.001.
  2. aMedians significantly different (Wilcoxon signed rank test for difference) between paired observations.
  3. SFA: saturated fatty acids; MUFA: monounsaturated fatty acids; PUFA: polyunsaturated fatty acids; EPA: eicosapentaenoic acid; DHA: docohexaenoic acid; TFA: trans fatty acids; RAE: retinol activity equivalents.
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Nutrition Journal

ISSN: 1475-2891

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