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. Author manuscript; available in PMC: 2014 Nov 17.
Published in final edited form as: Food Policy. 2010 Jul 10;35(6):514–520. doi: 10.1016/j.foodpol.2010.06.004

Table 2.

Pearson correlation coefficients between energy density, naturally nutrient rich score, nutrient rich food score 9.3 and energy cost of foods (n = 378).

NNRa NRF 9.3 Energy cost ($/1000 kcal)
Energy densitya −0.51 −0.52 −0.39
NNRa 0.66 0.45
NRF 9.3 0.36
a

For purposes of correlation analysis, energy density and NNR scores were log-transformed.