Under- and overreporting of energy intake related to weight status and lifestyle in a nationwide sample.

Desire for weight change and level of dietary consciousness may severely bias reported food intake in dietary surveys. We evaluated to what degree under- and overreporting of energy intake (EI) was related to lifestyle, sociodemographic variables, and attitudes about body weight and diet in a nationwide dietary survey. Data were gathered by a self-administered quantitative food-frequency questionnaire distributed to a representative sample of men and women aged 16-79 y in Norway, of whom 3144 subjects (63%) responded. Reported EI was related to estimated basal metabolic rate (BMR) based on self-reported body weight, age, and sex. An EI:BMR < 1.35 was considered to represent underreporting and an EI:BMR > or = 2.4 as overreporting of EI. Fewer men than women underreported EI (38% compared with 45%). The fraction of overreporters did not differ significantly between sexes (7% of the men compared with 5% of the women). A large proportion of underreporters was obese (9%) and wanted to reduce their weight (41%). Few overreporters were obese and 12% wanted to increase their weight. Underreporters consumed fewer foods rich in fat and sugar than did the other subjects. Multiple regression analysis showed that desire for weight change and physical activity score were significantly correlated with both EI and EI:BMR when adjusted for sociodemographic and lifestyle variables. Our findings indicated that attitudes about one's own body weight influenced reported EI. These attitudes are important in the interpretation of dietary data because many of the subjects (> 30%) wanted to change their body weight.

[1]  L. Lissner,et al.  Dietary underreporting by obese individuals--is it specific or non-specific? , 1995, BMJ.

[2]  M Vrijheid,et al.  Who are the 'low energy reporters' in the dietary and nutritional survey of British adults? , 1997, International journal of epidemiology.

[3]  R. Bahr Excess postexercise oxygen consumption--magnitude, mechanisms and practical implications. , 1992, Acta physiologica Scandinavica. Supplementum.

[4]  S. Heymsfield,et al.  Discrepancy between self-reported and actual caloric intake and exercise in obese subjects. , 1992, The New England journal of medicine.

[5]  B. Hustvedt,et al.  Accuracy of a quantitative food frequency questionnaire applied in elderly Norwegian women. , 1992, European journal of clinical nutrition.

[6]  A. Schatzkin,et al.  Contribution of dieting to the inverse association between energy intake and body mass index. , 1996, European journal of clinical nutrition.

[7]  M. Livingstone Assessment of food intakes: are we measuring what people eat? , 1995, British journal of biomedical science.

[8]  R. Klesges,et al.  Who underreports dietary intake in a dietary recall? Evidence from the Second National Health and Nutrition Examination Survey. , 1995, Journal of consulting and clinical psychology.

[9]  J. Stamler,et al.  Relation of smoking at baseline and during trial years 1-6 to food and nutrient intakes and weight in the special intervention and usual care groups in the Multiple Risk Factor Intervention Trial. , 1997, The American journal of clinical nutrition.

[10]  M. Wiseman,et al.  The dietary and nutritional survey of British adults. , 1990 .

[11]  M. Rowland,et al.  Self-reported weight and height. , 1990, The American journal of clinical nutrition.

[12]  E. Rothenberg,et al.  Evaluation of energy intake estimated by a diet history in three free-living 70 year old populations in Gothenburg, Sweden , 1997, European Journal of Clinical Nutrition.

[13]  E. Lebenthal The Doubly‐labelled Water Method for Measuring Energy Expenditure , 1991, Journal of Pediatric Gastroenterology and Nutrition.

[14]  A. Tverdal [Height, weight and body mass index of men and women aged 40-42 years]. , 1996, Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke.

[15]  C. Drevon,et al.  Dietary habits among Norwegian men and women , 1997 .

[16]  S A Jebb,et al.  Critical evaluation of energy intake data using fundamental principles of energy physiology: 1. Derivation of cut-off limits to identify under-recording. , 1991, European journal of clinical nutrition.

[17]  S. Männistö,et al.  Increasing prevalence of underreporting does not necessarily distort dietary surveys , 1997, European Journal of Clinical Nutrition.

[18]  A. Drewnowski,et al.  Men and body image: are males satisfied with their body weight? , 1987, Psychosomatic medicine.

[19]  S A Jebb,et al.  Critical evaluation of energy intake data using fundamental principles of energy physiology: 2. Evaluating the results of published surveys. , 1991, European journal of clinical nutrition.

[20]  C. Drevon,et al.  Response rates with different distribution methods and reward, and reproducibility of a quantitative food frequency questionnaire , 1997, European Journal of Clinical Nutrition.

[21]  J. Seidell Obesity in Europe: scaling an epidemic. , 1995, International journal of obesity and related metabolic disorders : journal of the International Association for the Study of Obesity.

[22]  P. Puska,et al.  Accuracy of Self-Reported Body Weight Compared to Measured Body Weight , 1987, Scandinavian journal of social medicine.

[23]  T. Byers,et al.  Trends in overweight among US adults from 1987 to 1993: a multistate telephone survey. , 1996, American journal of public health.

[24]  A M Prentice,et al.  Energy expenditure in overweight and obese adults in affluent societies: an analysis of 319 doubly-labelled water measurements. , 1996, European journal of clinical nutrition.

[25]  A M Prentice,et al.  Human energy expenditure in affluent societies: an analysis of 574 doubly-labelled water measurements. , 1996, European journal of clinical nutrition.

[26]  Joint Fao,et al.  Energy and protein requirements. Report of a joint FAO/WHO/UNU Expert Consultation. , 1985, World Health Organization technical report series.

[27]  L. Andersen,et al.  Very-long-chain n-3 fatty acids as biomarkers for intake of fish and n-3 fatty acid concentrates. , 1996, The American journal of clinical nutrition.

[28]  R. Moffatt,et al.  Cessation from cigarette smoking: changes in body weight, body composition, resting metabolism, and energy consumption. , 1991, Metabolism: clinical and experimental.