Table 7

Protein density, regression of log(biomarker) on log(self-report) and other predictors in NPAAS (n = 450) and R2
Food frequency questionnaire Four day food record 24 Hr diet recall
Variable β SE R2 β SE R2 β SE R2
Intercept 2.602* 0.057 2.629* 0.055 2.659* 0.058
Log(PD)C 0.325* 0.073 6.254 0.511* 0.071 12.416 0.427* 0.074 8.578
BMI-C -0.004 0.003 0.66 -0.004 0.003 0.658 -0.004 0.003 0.448
Age-C -0.003 0.003 0.06 -0.001 0.002 0 -0.004 0.003 0.222
Race: 2.396 2.988 3.323
Black -0.107* 0.043 -0.129* 0.041 -0.138* 0.042
Hispanic -0.101* 0.045 -0.080 0.044 -0.092* 0.045
Other -0.042 0.081 -0.005 0.078 -0.060 0.080
Meals at Home: 0.413 0.189 0.182
Med 0.044 0.036 0.039 0.034 0.031 0.035
High 0.055 0.037 0.038 0.035 0.039 0.037
Body Image: 0.669 0.664 0.664
Med 0.043 0.043 0.055 0.042 0.031 0.043
High 0.109 0.071 0.102 0.068 0.073 0.071
TFEQ-R18
Restraint: 0.209 0.234 0.234
Med -0.030 0.034 -0.030 0.032 -0.026 0.033
High -0.023 0.041 -0.019 0.040 0.005 0.041
Unc. Eat.: 0.319 0.439 0.439
Med -0.052 0.038 -0.062 0.037 -0.055 0.038
High -0.061 0.044 -0.055 0.043 -0.074 0.043
Emo. Eat.: 0.561 0.605 0.605
Med 0.057 0.038 0.056 0.037 0.057 0.038
High 0.032 0.052 0.014 0.050 0.020 0.051
Social Desirability: 0.189 0.524 0.524
Med -0.012 0.035 -0.029 0.034 -0.016 0.035
High 0.021 0.038 0.027 0.036 0.032 0.037
Total1 11.731 18.707 14.729

BMI, body mass index.

*β Coefficient differs from zero at p = 0.05 significance level.

1Total – percent of variation explained by all variables. R2 values for specific variables arise from analyses with only these regression variables, with subsequent rescaling so that these R2 values add to the total regression R2. R2 values for race/ethnicity pertain to comparisons among the four groups (white, black, Hispanic, other minority).

Suffix C (e.g. BMI-C) = Centered values; for psychosocial & meals at home variables: medium and high are compared to low.

Mossavar-Rahmani et al.

Mossavar-Rahmani et al. Nutrition Journal 2013 12:63   doi:10.1186/1475-2891-12-63

Open Data