Table 2.

Test–retest reliability of the 10 subscales and of the total NND score (n=67)

The 10 subscales constituting the NND score		Spearman's rank order correlation	Kappa measure of agreement (dichotomized subscales)	Percent agreement between test and retest (dichotomized subscales)
1:	Meal pattern	0.78	0.70	85
2:	Nordic fruits	0.76	0.60	81
3:	Root vegetables	0.71	0.63	82
4:	Cabbages	0.54	0.32	67
5:	Potatoes vs. rice/pasta	0.70	0.67	84
6:	Whole grain breads vs. white breads	0.62	0.52	76
7:	Oatmeal porridge	0.84	0.67	84
8:	Foods from the wild countryside	0.70	0.51	76
9:	Milk vs. juice	0.84	0.76	88
10:	Water vs. sugar/artificially sweetened beverages	0.79	0.43	72
NND score		0.80a	0.52b	69b

NND, New Nordic Diet.

P-values for all analyses were <0.001.

^aPearson correlation coefficient is used for the NND score.

^bTrichotomized score.