Factors relating to eating style, social desirability, body image and eating meals at home increase the precision of calibration equations correcting self-report measures of diet using recovery biomarkers: findings from the Women’s Health Initiative

Table 3 Regression of log(self-report) minus log(biomarker) on predictors in NPAAS (n = 450) for protein

	Food frequency questionnaire		4-day food record		24-hour dietary recall
Variable	β	SE	β	SE	β	SE
Intercept	-0.6274	0.349	-0.3345	0.217	-0.5412*	0.229
BMI	0.002	0.005	-0.0064*	0.003	-0.0099*	0.003
Age	0.0087*	0.004	0.0074*	0.003	0.0104*	0.003
Black	-0.199*	0.07	0.0944*	0.044	0.1163*	0.046
Hispanic	-0.1099	0.073	0.0341	0.045	0.0417	0.048
Other	-0.1049	0.135	-0.0588	0.084	0.0134	0.088
Meals at home-M	0.0161	0.059	-0.0621	0.037	-0.0365	0.039
Meals at home-H	0.1268*	0.06	-0.0182	0.037	-0.0024	0.039
Body Image-M	-0.0111	0.071	-0.0071	0.044	0.0295	0.046
Body Image-H	-0.1688	0.115	-0.1097	0.072	-0.0283	0.076
TFEQ-R18
Restraint-M	-0.0263	0.055	0.0157	0.034	-0.004	0.036
Restraint-H	-0.0083	0.068	-0.0169	0.042	-0.0471	0.045
Unc. Eat-M	-0.0735	0.062	0.0263	0.039	0.0023	0.041
Unc. Eat-H	-0.047	0.072	0.0052	0.045	0.0186	0.048
Emo. Eat-M	-0.0342	0.062	-0.0678	0.039	-0.0475	0.041
Emo. Eat-H	0.0265	0.084	0.0416	0.052	0.0083	0.055
Soc. Des-M	-0.0335	0.058	0.0027	0.036	-0.0361	0.038
Soc. Des-H-	-0.1423*	0.062	-0.0528	0.039	-0.0434	0.041

ISSN: 1475-2891