Table 3

Correspondence between the original data and test data when using "Standard portion sizes" and "Simplified coding": Pearson correlation coefficients (r), and percent agreement (%) in cross-classification, of energy and nutrient estimates, separately for women (n = 2660) and men (n = 1769).
Energy and nutrients
 Standard portion-sizes
 Simplified coding


Women
 Men
 Women
 Men

r
 %
 r
 %
 r
 %
 r
 %
Energya
 0.992
 88
 0.989
 85
 0.999
 97
 0.999
 98
Total fatb
 0.992
 90
 0.992
 90
 0.997
 92
 0.998
 94
Linoleic acidb
 0.982
 84
 0.984
 86
 0.996
 94
 0.997
 92
α linolenic acidb
 0.983
 85
 0.984
 86
 0.997
 93
 0.998
 94
Eicosapentaenoic acidb
 0.992
 90
 0.993
 92
 0.995
 95
 0.996
 96
Tocopherolb
 0.990
 88
 0.990
 89
 0.997
 93
 0.997
 94
Seleniumb
 0.984
 85
 0.984
 86
 0.996
 93
 0.995
 94
β-caroteneb
 0.998
 96
 0.997
 95
 0.988
 91
 0.981
 89
Ascorbic acidb
 0.996
 94
 0.993
 93
 0.998
 96
 0.998
 95
Dietary fibreb
 0.996
 94
 0.992
 93
 0.999
 97
 0.999
 97
B12 b
 0.995
 90
 0.996
 92
 0.991
 93
 0.996
 95

a Unadjusted bEnergy-adjusted (residual method)

Wirfält et al. Nutrition Journal 2002 1:3   doi:10.1186/1475-2891-1-3