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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).

From: A methodological report from the Malmö Diet and Cancer study: development and evaluation of altered routines in dietary data processing

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
  1. a Unadjusted bEnergy-adjusted (residual method)