Dietary underreporting is prevalent in middleaged British women and is not related to adiposity (percentage body fat)

Samaras, Katherine; Kelly, Paul; Lv, Campbell

doi:10.1038/sj.ijo.0800967

Cited by 52 publications

(27 citation statements)

References 23 publications

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“…Actual differences in activity and intake patterns for families with obesigenic vs non-obesigenic tendencies may be even greater than those identified in this study as research shows that people tend to under-report dietary intake 40 and over-report physical activity 25 and suggests that this pattern may be more pronounced among overweight and obese persons. 41 -43 This bias was also present in this study as subjects who were heavier reported lower intakes than would be expected based on their weight (as shown by a negative sample mean value for energy intake residualized for body weight in Table 1).…”

Section: Discussioncontrasting

confidence: 43%

Obesigenic families: parents' physical activity and dietary intake patterns predict girls' risk of overweight

2002

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OBJECTIVE:To determine whether obesigenic families can be identified based on mothers' and fathers' dietary and activity patterns. METHODS: A total of 197 girls and their parents were assessed when girls were 5 y old; 192 families were reassessed when girls were 7 y old. Measures of parents' physical activity and dietary intake were obtained and entered into a cluster analysis to assess whether distinct family clusters could be identified. Girls' skinfold thickness and body mass index (BMI) were also assessed and were used to examine the predictive validity of the clusters. RESULTS: Obesigenic and a non-obesigenic family clusters were identified. Mothers and fathers in the obesigenic cluster reported high levels of dietary intake and low levels of physical activity, while mothers and fathers in the non-obesigenic cluster reported low levels of dietary intake and high levels of activity. Girls from families in the obesigenic cluster had significantly higher BMI and skinfold thickness values at age 7 and showed significantly greater increases in BMI and skinfold thickness from ages 5 to 7 y than girls from non-obesigenic families; differences were reduced but not eliminated after controlling for parents' BMI. CONCLUSIONS: Obesigenic families, defined in terms of parents' activity and dietary patterns, can be used predict children's risk of obesity.

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Section: Discussioncontrasting

confidence: 43%

Obesigenic families: parents' physical activity and dietary intake patterns predict girls' risk of overweight

2002

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“…The ratio of reported energy intake (EI) to BMR was used to estimate the prevalence of under-and overreporting. A cut-off point of EI , 1.35 £ BMR, estimated based on sedentary subjects in calorimeters, was used to identify implausibly low energy intakes, as in other studies 10,22,24,25 . As elsewhere, overreporting was defined as EI .…”

Section: Dietary Assessmentmentioning

confidence: 99%

Under- and overreporting of energy is related to obesity, lifestyle factors and food group intakes in Jamaican adults

Mendez¹,

Wynter

Wilks

et al. 2004

Public Health Nutr.

116

100

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Objective: Research in industrialised countries has documented a high prevalence of underreported energy intakes associated with characteristics such as obesity. This paper examines the prevalence, patterns and impact of energy under-and overreporting on diet-obesity relationships in a middle-income developing country. Design: A 70-item food-frequency questionnaire was used. Underreporters had reported energy intakes , 1.35 £ basal metabolic rate (BMR), overreporters . 2.4 £ BMR. Multinomial models were used to identify characteristics associated with implausible reporting. Intakes were compared across reporting groups to assess evidence of bias. Associations between diet and obesity were compared with and without adjustment for implausible reporting. Setting: Spanish Town, neighbouring the capital city of Kingston, Jamaica. Subjects: Eight hundred and ninety-one Jamaican adults, aged 25-75 years, were randomly recruited. Results: More women than men (38.6% vs. 22.5%) underreported, but more men overreported energy (23.7% vs. 16.0%). Underreporting was positively associated with obesity, special diets, smoking and age; age was inversely associated with overreporting. Underreporters estimated lower energy from potentially socially undesirable food groups (e.g. snacks) and higher intakes of 'healthy' foods (e.g. fruit) than did plausible reporters. For some of these food groups, significant differences in intakes among normal-weight versus obese subjects observed among plausible reporters were absent when implausible reporters were included. In models of food group -obesity associations, adjusting for implausible energy yielded more credible results that more closely resembled findings in plausible reporters. Conclusions: Energy under-and overreporting are highly prevalent in Jamaica. Adjusting for implausible reporting may help to reduce bias in diet -health outcome associations.

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“…Studies involving urinary nitrogen as a biomarker for total protein intake have also been consistent with this conclusion 2,3 . However, obesity-related underreporting may not be a universal phenomenon, and there is evidence that fatness per se may be less predictive of underreporting than body size 4,5 . This paper briefly reviews a number of issues relevant to interpreting dietary data in studies involving obesity.…”

mentioning

confidence: 99%

Measuring food intake in studies of obesity

Lissner

2002

Public Health Nutr.

133

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The problem of how to measure habitual food intake in studies of obesity remains an enigma in nutritional research. The existence of obesity-specific underreporting was rather controversial until the advent of the doubly labelled water technique gave credence to previously anecdotal evidence that such a bias does in fact exist. This paper reviews a number of issues relevant to interpreting dietary data in studies involving obesity. Topics covered include: participation biases, normative biases, importance of matching method to study, selective underreporting, and a brief discussion of the potential implications of generalised and selective underreporting in analytical epidemiology. It is concluded that selective underreporting of certain food types by obese individuals would produce consequences in analytical epidemiological studies that are both unpredictable and complex. Since it is becoming increasingly acknowledged that selective reporting error does occur, it is important to emphasise that correction for energy intake is not sufficient to eliminate the biases from this type of error. This is true both for obesity-related selective reporting errors and more universal types of selective underreporting, e.g. foods of low social desirability. Additional research is urgently required to examine the consequences of this type of error.

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Dietary underreporting is prevalent in middleaged British women and is not related to adiposity (percentage body fat)

Cited by 52 publications

References 23 publications

Obesigenic families: parents' physical activity and dietary intake patterns predict girls' risk of overweight

Obesigenic families: parents' physical activity and dietary intake patterns predict girls' risk of overweight

Under- and overreporting of energy is related to obesity, lifestyle factors and food group intakes in Jamaican adults

Measuring food intake in studies of obesity

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