1 Institute of Preventive Medicine, Bispebjerg and Frederiksberg Hospital, The Capital Region of Denmark2 Parker Instituttet, Bispebjerg and Frederiksberg Hospital, The Capital Region of Denmark
Bias in diet reporting may be both random and non-random, and may be found with simpler as well as more advanced dietary instruments. A random bias will contribute to obscure relations between diet and disease. A systematic bias may obscure or aggravate such associations. Underreporting of non-protein energy has been found to be substantial, particularly among those who are obese or have high dietary intakes. Such a non-random bias on the group level would tend to aggravate associations between dietary non-protein and disease. Whether the net result of the random and non-random bias aggravates or obscures relations depends on the relative magnitude of the two.
European Journal of Clinical Nutrition, 2007, Vol 61, Issue 7, p. 925-7
Journal Article; Research Support, Non-U.S. Gov't; Bias (Epidemiology); Breast Neoplasms; Diet; Diet Surveys; Dietary Fats; Dietary Proteins; Energy Intake; Female; Humans; Obesity; Self Disclosure