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Table 2 Test-retest reliability of the VFR for daily energy and nutrient intake, n = 35

From: Reliability and validity of assessing energy and nutrient intake with the Vienna food record: a cross-over randomised study

 

Testa mean (SD)

Retestb mean (SD)

Mean diff. (%)

pc

ICC (3.1)d

pe

SEMf

Energy (kcal)

2245 (496)

2301 (596)

−56.2 (−3)

0.449

0.69

< 0.001

384.9

Total fat (g)

91.3 (27.3)

98.3 (32.6)

−7.0 (−8)

0.135

0.59

< 0.001

24.4

SFA (g)

35.3 (11.8)

39.7 (14.0)

−4.4 (− 12)

0.013

0.67

< 0.001

9.6

MUFA (g)

33.2 (11.8)

35.0 (12.4)

−1.8 (−5)

0.313

0.63

< 0.001

9.3

PUFA (g)

16.7 (7.2)

16.8 (7.5)

−0.1 (− 1)

0.948

0.19

0.136

8.3

Cholesterol (mg)

405 (176)

380 (139)

24.6 (6)

0.375

0.48

0.002

144.3

Protein (g)

95.3 (44.6)

94.3 (33.2)

1.0 (1)

0.868

0.61

< 0.001

30.9

Carbohydrates (g)

244 (48)

239 (59.6)

4.8 (2)

0.616

0.48

0.002

49.1

Fibres (g)

25 (9)

23.3 (8.6)

1.3 (5)

0.322

0.66

< 0.001

6.6

Total sugars (g)

86 (34)

88.5 (31.4)

−2.5 (−3)

0.639

0.54

< 0.001

27.8

Alcohol (g)

7.0 (9.0)

9.4 (11.6)

−2.4 (− 34)

0.251

0.30

0.037

11.0

Calcium (mg)

1002 (423)

1086 (457)

−83.6 (−8)

0.112

0.75

< 0.001

276.1

Chloride (mg)

5924 (1777)

6061 (2271)

− 137 (−2)

0.705

0.46

0.002

1879

Iron (mg)

16.0 (7.0)

15.5 (5.8)

0.4 (3)

0.720

0.37

0.014

6.4

Iodine (μg)

117 (43.8)

116 (45.3)

1.4 (1)

0.851

0.52

0.001

38.8

Magnesium (mg)

425 (151)

412 (147)

12.7 (3)

0.563

0.63

< 0.001

113.9

Phosphorus (mg)

1459 (530)

1504 (528)

−45.1 (−3)

0.415

0.82

< 0.001

286.3

Potassium (mg)

3233 (858)

3517 (1238)

− 284 (−9)

0.105

0.54

< 0.001

916.7

Sodium (mg)

3526 (1120)

3520 (1270)

6.6 (0)

0.971

0.61

< 0.001

942.7

Zinc (mg)

12.9 (5.3)

13.6 (4.7)

−0.7 (−5)

0.344

0.63

< 0.001

3.9

Thiamine (mg)

1.3 (0.4)

1.4 (0.5)

−0.1 (−8)

0.119

0.57

< 0.001

0.4

Riboflavin (mg)

1.7 (0.6)

1.8 (0.7)

−0.2 (−12)

0.007

0.81

< 0.001

0.3

Niacin eq. (mg)

36.9 (13.0)

37.7 (13.8)

−0.8 (−2)

0.691

0.58

< 0.001

10.9

Vit B5 (mg)

4.9 (1.4)

5.2 (1.8)

−0.4 (−8)

0.054

0.76

< 0.001

1.0

Vit B6 (mg)

1.7 (0.7)

1.9 (1.0)

−0.2 (− 12)

0.391

0.18

0.151

1.0

Vit B7 (μg)

54.2 (24.6)

52.3 (19.4)

1.9 (4)

0.651

0.42

0.006

21.3

Folic acid (μg)

291 (88.6)

310 (139)

−19.9 (−7)

0.232

0.65

< 0.001

86.6

Vit B12 (μg)

7.7 (9.0)

6.4 (3.8)

1.3 (17)

0.435

0.01

0.467

8.7

Vit C (mg)

105 (63.4)

135 (201)

−30.5 (−29)

0.367

0.12

0.236

188.7

Vit A - Carotene (μg)

8.0 (5.9)

8.1 (8.5)

−0.1 (−1)

0.914

0.06

0.371

8.9

Retinol eq. (μg)

1.8 (1.0)

1.8 (1.5)

0 (0)

0.959

0.13

0.231

1.5

Vit D (μg)

5.1 (8.9)

4.9 (10.3)

0.2 (4)

0.759

0.95

< 0.001

12.1

Tocopherol eq. (mg)

15.3 (8.3)

13.6 (6.2)

1.7 (11)

0.108

0.64

< 0.001

5.6

Vit K (μg)

234 (162)

277 (317)

−43.0 (−18)

0.366

0.39

0.009

247.5

Average

  

7%

 

0.52

  
  1. a,bVienna Food Record (VFR), completed over 4 consecutive days including 1 weekend day
  2. c2-sided p-value derived from paired t-test
  3. dIntra-class correlation coefficient (3.1): absolute agreement, single values, two-way mixed
  4. ep-value derived from ICC
  5. fStandard error of measurement