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Table 3 Agreement between MEDAS and FFQ (German)

From: Validation of the German version of the Mediterranean Diet Adherence Screener (MEDAS) questionnaire

Question

Baseline (n = 66)

3 months (n = 54)

r

AA

κ

ICC

r

AA

κ

ICC

1

0.70

0.87

0.70 (0.51 to 0.89)

0.68 (0.07 to 1.3)

0.51

0.87

0.51 (0.22 to 0.81)

0.55 (−0.19 to 1.28)

2

0.29

0.86

0.23 (−0.07 to 0.53)

0.21 (−0.35 to 0.76)

−0.09

0.70

−0.034 (−0.1 to 0.03)

−0.03 (−0.08 to 0.02)

3

0.30

0.63

0.28 (0.06 to 0.49)

0.14 (−0.26 to 0.54)

0.25

0.62

0.19(−0.02 to 0.4)

0.15 (−0.36 to 0.66)

4

0.42

0.70

0.36 (0.15 to 0.56)

0.28 (−0.33 to 0.88)

0.08

0.25

0.087 (−0.16 to 0.31)

−0.03 (−0.06 to 0.01)

5

0.58

0.81

0.50 (0.28 to 0.72)

0.52 (−0.20 to 1.24)

0.40

0.87

0.39 (0.03 to 0.75)

0.04 (−0.35 to 1.14)

6

0.45

0.73

0.45 (0.22 to 0.67)

0.32 (−0.33 to 0.97)

0.23

0.61

0.22 (−0.03 to 0.48)

0.06 (−0.20 to 0.33)

7

−0.04

0.91

−0.03 (−0.07 to 0.02)

−0.11 (−0.14 to −0.08)

n/a

0.96

n/a

−0.33 (−0.38 to −0.28)

8

0.35

0.83

0.28 (−0.001 to 0.57)

0.51 (−0.28 to 1.30)

0.24

0.91

0.21 (−0.19 to 0.6)

0.37 (−0.57 to 1.31)

9

n/a

0.92

n/a

n/a

0.86

0.96

0.85 (0.66 to 1.1)

0.91 (0.68 to 1.14)

10

0.25

0.84

0.21 (−0.18 to 0.61)

0.22 (−0.42 to 0.87)

0.28

0.74

0.21 (−0.04 to 0.45)

0.13 (−0.28 to 0.55)

11

0.44

0.77

0.37 (0.14 to 0.6)

0.33 (−0.33 to 0.99)

0.64

0.83

0.61 (0.39 to 0.83)

0.58 (−0.13 to 1.28)

12

0.72

0.86

0.70 (0.52 to 0.87)

0.68 (0.05 to 1.30)

0.78

0.89

0.77 (0.61 to 0.94)

0.76 (0.23 to 1.28)

13

0.18

0.43

0.06 (−0.01 to 0.13)

0.03 (−0.14 to 0.20)

0.13

0.27

0.03 (−0.01 to 0.08)

0.01 (−0.15 to 0.13)

14

0.39

0.69

0.38 (0.16 to 0.6)

0.25 (−0.33 to 0.83)

0.17

0.60

0.17 (−0.01 to 0.43)

0.02 (−0.14 to 0.18)

  1. AA = absolute agreement, r = Pearson’s product–moment correlation, κ = Cohen’s Kappa with the confidence intervals in brackets, ICC = Intraclass Correlation Coefficient with the confidence intervals in brackets