Table 3

Correlation coefficients (r) between baseline and year 1 AFFQ and the average of 4-day dietary records for unadjusted and energy-adjusted nutrients and alcohol intakes among 139 participants in the WBF triala

Diet records vs. baseline AFFQDiet records vs. year 1 AFFQ
Unadjusted rAdjusted rDeattenuated rbUnadjusted rAdjusted rDeattenuated rb
Energy0.200.220.370.41
Total fat0.320.430.540.460.530.67
% kcal from fat0.450.560.550.67
Saturated fat0.320.480.590.440.490.61
Cholesterol0.300.320.550.410.390.67
Carbohydrate0.210.510.620.380.490.60
Protein0.230.340.480.350.330.47
Dietary fiber0.250.370.450.370.360.44
Vitamin A0.100.280.400.220.340.48
Thiamin0.220.410.560.280.270.37
Riboflavin0.200.460.570.270.390.49
Niacin0.340.390.520.380.420.56
Folate0.280.390.480.310.330.41
Vitamin C0.280.480.570.460.490.59
Vitamin E0.390.230.280.170.200.25
Calcium0.160.380.480.230.270.34
Phosphorous0.220.230.280.340.220.27
Iron0.270.450.570.270.310.39
Alcohol0.610.650.580.62
Mean0.280.380.490.360.360.49
  • a All data are log transformed.

  • b Calculated from the energy-adjusted nutrients and the ratio of the within- to between-person variance measured from the 4-day diet records.