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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