Validity of the assessment of dietary intake: problems of misreporting

Westerterp, Klaas R.; Goris, Annelies H. C.

doi:10.1097/00075197-200209000-00006

Cited by 241 publications

(193 citation statements)

References 27 publications

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“…The results suggest that the shorter SDQ is as accurate as a traditionally designed and more extensive FFQ in estimating EI, nutrients and foods. There has been some discussion about whether women generally under-report more than men, but evidence points to no consistent differences in reporting accuracy between the sexes (4,25,26) . However, a number of previous validation studies of FFQ in women have reported underestimation of EI when compared with TEE measured by the DLW method (5,6,26,27) .…”

Section: Discussionmentioning

confidence: 99%

“…The FFQ method is most often used in epidemiological studies (1) , since it is easy to administer at a relatively low cost and estimates habitual dietary intake over an extended time period (2) . A valid FFQ can be used to rank individuals according to reported intake and, if it includes portion size estimations, to assess absolute individual intakes (3) .However, a problem with all self-report dietary assessment methods is the misreporting of energy intake (EI) (4) . Dietary intake in young, weight-conscious women can be especially difficult to assess accurately, and previous studies in women show underestimation of EI when assessed using FFQ by comparison with total energy expenditure (TEE) measured by the doubly labelled water (DLW) method (5,6) .…”

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confidence: 99%

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Dietary intake assessment in women with different weight and pregnancy status using a short questionnaire

Svensson

Renström

Bluck

et al. 2013

Public Health Nutr.

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Objective: First, to evaluate the ability of a short dietary questionnaire (SDQ) to estimate energy intake (EI) on group and individual levels compared with total energy expenditure (TEE) measured by the doubly labelled water method. Second, to compare the SDQ's performance in estimating energy, nutrient and food intakes with a sixty-six-item FFQ used in large-scale Swedish epidemiological research. Design: Cross-sectional. Setting: Umeå, Sweden. Subjects: In total, sixty-five non-pregnant women, of whom thirty-one were overweight or obese, and twenty-five pregnant, normal-weight women completed the protocol. Results: On average, the SDQ captured 78 % and 79 % of absolute TEE in the non-pregnant and pregnant normal-weight women, respectively. Furthermore, the SDQ captured an average of 57 % of TEE in the overweight/obese nonpregnant women. The Spearman correlation of EI and TEE was significant in the overweight and obese women only (r 5 0?37, 95 % CI 0?02, 0?64). There was no significant difference between the SDQ and the more extensive FFQ in the ability to assess EI when compared with TEE. Intakes of most nutrients and foods were significantly higher when assessed with the SDQ compared with the FFQ. Conclusions: A new short dietary questionnaire with an alternative design underestimated EI of non-pregnant and pregnant, overweight and obese women on a group level but was able to rank the overweight/obese women according to EI. Furthermore, the short questionnaire captured as much or more of the energy, nutrient and food intakes of non-pregnant normal-weight and overweight/obese women on the group level as a traditional, more extensive FFQ. Keywords Body weight Dietary intake Doubly labelled water FFQ Non-pregnant and pregnant women ValidityThere is a need for quick and easy-to-administer dietary assessment tools with low respondent burden that give valid intake data in large-scale population studies and that are able to rank participants according to intake. The FFQ method is most often used in epidemiological studies (1) , since it is easy to administer at a relatively low cost and estimates habitual dietary intake over an extended time period (2) . A valid FFQ can be used to rank individuals according to reported intake and, if it includes portion size estimations, to assess absolute individual intakes (3) .However, a problem with all self-report dietary assessment methods is the misreporting of energy intake (EI) (4) . Dietary intake in young, weight-conscious women can be especially difficult to assess accurately, and previous studies in women show underestimation of EI when assessed using FFQ by comparison with total energy expenditure (TEE) measured by the doubly labelled water (DLW) method (5,6) . Furthermore, it has repeatedly been shown that for overweight and obese individuals EI is underestimated to a higher extent than for their normalweight counterparts (6)(7)(8)(9) . One biomarker study suggested that the FFQ worked better in detecting the higher EI in obese women when compared with the 24...

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Dietary intake assessment in women with different weight and pregnancy status using a short questionnaire

Svensson

Renström

Bluck

et al. 2013

Public Health Nutr.

View full text Add to dashboard Cite

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“…A small pilot study to test a fish consumption questionnaire containing detailed and summary questions also found that an aggregate overestimated fish consumption relative to a summary measure 14 . This is of practical importance given that studies comparing estimated intakes with biomarkers of energy have demonstrated a tendency for FFQs and food records to typically underestimate consumption 15,16 . This underestimation could be amplified by the use of abbreviated questioning, and has implications for the usefulness of dietary estimates collected by abbreviated FFQs for the purpose of examining associations between absolute dietary intakes and disease.…”

Section: Discussionmentioning

confidence: 99%

Do aggregates of multiple questions better capture overall fish consumption than summary questions?

Mina

Fritschi

Knuiman

2008

Public Health Nutr.

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Objective: To compare intake estimates, validity and reliability of two summary questions to measure fish consumption with information from a detailed semiquantitative food-frequency questionnaire (FFQ) on fish consumption. Design: Population-based, cross-sectional study. Participants completed an FFQ and provided blood samples for erythrocyte membrane eicosapentaenoic acid (EPA) analysis. Aggregate measures of consumption of fresh/frozen/canned fish (fresh fish) and smoked/salted/dried fish (preserved fish) were generated from the FFQ and were compared with responses to the summary questions regarding intakes of similar items. Both methods were tested for validity, using correlation and linear regression techniques with EPA, and retest reliability. Setting: Perth metropolitan area, Western Australia. Subjects: One hundred and nine healthy volunteers of both sexes, aged 21-75 years. Results: The summary fresh fish measure underestimated frequency and grams per week given by the aggregate question by about 50%, while estimates from the summary preserved fish measure were approximately three times that of the aggregate measure. Multiple linear regression analysis suggested that the aggregates accounted for more of the variation in EPA levels, but the difference was minimal. Intra-class correlations confirmed that both methods were reliable. Conclusions: Our study indicates that extensive questioning results in different absolute intakes of fish compared with brief questioning, but does not add any information if ranking individuals according to overall consumption of fish. Keywords Epidemiological methodsFatty acids Omega-3 Questionnaires Reproducibility of results Validation studiesFish consumption has been suggested as a protective factor for the development of various cancers; however, results from studies investigating this association have been inconsistent, ranging from statistically significant associations 1,2 to no clear association at all 3,4 . Possible reasons for this could be either a lack of detail collected by questionnaires used to measure fish consumption and therefore the failure to accurately capture the fish consumption of study participants, or a tendency for investigators to use a single measure to represent overall fish intake in statistical modelling despite having collected detailed information on the various types of fish and seafood consumed. However, there is no published evidence that the distinction among types and styles of fish items is important if ultimately the research question being asked is whether fish, as a food group, has a protective effect on the development of disease.We recently examined data collected as part of a large population-based case-control study for an association between fresh and preserved fish consumption and prostate cancer (Mina K, Fritschi L, Johnson KC, The Canadian Cancer Registries Epidemiology Research Group, 2007, unpublished). Information on fish intake was collected by means of two questions about frequency of consumption of a given am...

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“…24,25 When this method was used to compare self-reported energy intakes with energy expenditure, it became clear that energy intake was often considerably underestimated, due to a combination of underrecording and temporary undereating. 26,27 Importantly, the degree of underestimation of intake was positively related to the BMI of the subjects. Consequently, dietary surveys cannot be used for drawing conclusions on dietary intake over time, or for comparing lean to obese subjects.…”

Section: Introductionmentioning

confidence: 98%

Physical activity energy expenditure has not declined since the 1980s and matches energy expenditures of wild mammals

2008

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Objective: Obesity results from protracted energy imbalance. Whether this comprises excessive energy intake, lowered physical activity or both, remains disputed. Design: Physical activity energy expenditure, evaluated in three different ways from daily energy expenditure (DEE) measured using doubly labelled water, was examined for trends over time. Data included subjects in Europe (Maastricht, the Netherlands) and North America extending back to the 1980s. These data were compared with measures from the third world, and measures made on wild terrestrial mammals. Results: Physical activity expenditure in Europe (residual of the regression of DEE on basal energy expenditure (BEE)) has slightly but significantly increased since the 1980s. There was no trend over time in physical activity level (PAL ¼ DEE/BEE), or in the residual variance in DEE once mass, sex and age were accounted for. This latter index of physical activity expenditure also significantly increased over time in North America. DEE of individuals in Europe and North America was not significantly different from individuals measured in the third world. In wild terrestrial mammals, DEE mostly depended on body mass and ambient temperature. Predicted DEE for a 78 kg mammal living at 20 1C was 9.2 MJ per day (95% CI: 7.9-12.9 MJ per day), not significantly different from the measured DEE of modern humans (around 10.2-12.6 MJ per day). Conclusion: As physical activity expenditure has not declined over the same period that obesity rates have increased dramatically, and daily energy expenditure of modern man is in line with energy expenditure in wild mammals, it is unlikely that decreased expenditure has fuelled the obesity epidemic.

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Validity of the assessment of dietary intake: problems of misreporting

Cited by 241 publications

References 27 publications

Dietary intake assessment in women with different weight and pregnancy status using a short questionnaire

Dietary intake assessment in women with different weight and pregnancy status using a short questionnaire

Do aggregates of multiple questions better capture overall fish consumption than summary questions?

Physical activity energy expenditure has not declined since the 1980s and matches energy expenditures of wild mammals

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