The Dutch EPIC food frequency questionnaire. II. Relative validity and reproducibility for nutrients

Ocké, Marga C.; Bueno-De-Mesquita, H. Bas; Pols, Margreet A.; Smit, Henriëtte A.; Staveren, W.A. van; Kromhout, Daan

doi:10.1093/ije/26.suppl_1.s49

Cited by 316 publications

(299 citation statements)

References 19 publications

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“…Intakes of dietary fibre and most micronutrients, particularly vitamin A, obtained from FFQ have been shown to have lower correlations to the reference method compared with the macronutrients (20)(21)(22) , a trend also observed in the present study. Similar to other studies (23)(24)(25) , a low correlation was observed for vitamin E in the validation of the QFFQ against food diaries.…”

Section: Discussionsupporting

confidence: 80%

Validation of a quantitative FFQ for the Barbados National Cancer Study

Pakseresht

Sharma

Cao

et al. 2010

Public Health Nutr.

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Objective: To assess the validity of a 148-item quantitative FFQ (QFFQ) that was developed for the Barbados National Cancer Study (BNCS) to determine dietary intake over 12 months and examine the dietary risk factors. Design: A cross-sectional validation study of the QFFQ against 4 d food diaries. Spearman's rank correlations (r), intra-class correlation coefficients (ICC) and weighted k were computed as measures of concordance, adjusting for daily variations in the food diaries. Cross-classification tables and Bland-Altman plots were created for further assessment. Setting: BNCS is a case-control study of environmental risk factors for breast and prostate cancer in a predominantly African-origin population in Barbados. Subjects: Fifty-four individuals (21 years and older) were recruited among controls in the BNCS who were frequency-matched on sex and age group to breast and prostate cancer cases. Results: Similar mean daily energy intake was derived from the food diary (8201 kJ (1960 kcal)) and QFFQ (7774 kJ (1858 kcal)). Rho for energy and macronutrients ranged from 0?66 (energy) to 0?17 (dietary fibre). The percentage of energy from carbohydrates and protein showed the highest and lowest ICC among macronutrients (0?63 and 0?27, respectively). The highest weighted k was observed for energy (0?45). When the nutrient intake was divided into quartiles, approximately 34 % of the observations were in the same quartile. Conclusions: This investigation supports the validity of the QFFQ as a method for assessing long-term dietary intake except for dietary fibre, folate, vitamins A, E and B 12 . The instrument will be a useful tool in the analysis of diet-cancer associations in the BNCS. Keywords Quantitative FFQ Food diary Validity Barbados National Cancer StudyThe Barbados National Cancer Study (BNCS) is a populationbased case-control study designed to examine the genetic and environmental risk factors for breast and prostate cancer in a predominantly African-origin population. The importance of nutrition-related factors and growing interest in the role of nutrient-gene interactions in cancer aetiology necessitates the development of a valid method for assessing long-term dietary intake. Studies on the association between diet and cancer have not been performed in Barbados, West Indies, likely due, in part, to the lack of a validated method to assess long-term dietary intake.To fill this gap, a 148-item quantitative FFQ (QFFQ) was developed to determine dietary intake and to examine hypotheses related to diet and its interaction with genes and cancer in African-Barbadians (1) . QFFQ is commonly used in large-scale epidemiological studies and provides a feasible approach to assess the usual long-term dietary intake of a population (2) . Only valid instruments provide correct estimates of diet and diet-cancer associations. Although a gold standard to validate QFFQ currently does not exist, its validity is evaluated by comparing the results of these instruments to those using other dietary assessment methods or ...

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Section: Discussionsupporting

confidence: 80%

Validation of a quantitative FFQ for the Barbados National Cancer Study

Pakseresht

Sharma

Cao

et al. 2010

Public Health Nutr.

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“…Our assessment of alcohol, total energy, and protein intake has previously been shown to be reproducible [43]. However, the FFQ we used has been shown to underestimate total energy and protein intake as compared to basal metabolic rate and urinary nitrogen excretion used as reference methods, respectively.…”

Section: Discussionmentioning

confidence: 92%

“…The self-administered food frequency questionnaire (FFQ) referred to habitual intake of 178 food items during the preceding year [42,43]. The questionnaire contained color photographs of 2-4 different-sized portions of 21 food items, which helped assessing the serving size.…”

Section: Data Collectionmentioning

confidence: 99%

Dietary Determinants of Circulating Insulin-like Growth Factor (IGF)-I and IGF Binding Proteins 1, -2 and -3 in Women in the Netherlands

Vrieling

Voskuil

Mesquita

et al. 2004

Cancer Causes Control

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Objective: Epidemiological studies suggest that individuals with elevated plasma concentrations of insulin-like growth factor (IGF-I) are at increased risk of developing cancer. We assessed whether dietary intake of total energy, protein, alcohol, phytoestrogens and related foods, and tomatoes and lycopene was associated with plasma levels of IGF-I and IGF binding proteins (IGFBPs) in Dutch women. Methods: A cross-sectional study was conducted in 224 premenopausal and 162 postmenopausal women, aged 49-69, participating in the Prospect-EPIC study in the Netherlands. Diet was assessed using a food frequency questionnaire. Results: In postmenopausal women, higher alcohol intake was associated with lower plasma IGFBP-1 concentrations (alcohol 1.4 to 20 g/day: 20% decrease in IGFBP-1; p ¼ 0.04), and higher intake of plant lignans was associated with higher IGFBP-1 concentrations (plant lignans 0 to 1 mg/day: 59% increase in IGFBP-1; p ¼ 0.02). Higher soy intake was associated with higher plasma IGFBP-2 concentrations in premenopausal women (soy 0 to 2.5 g/day: 3% increase in IGFBP-2; p ¼ 0.04). No independent associations of dietary factors with IGF-I or IGFBP-3 concentrations were observed. However, in premenopausal women alcohol intake was inversely associated with IGF-I and positively associated with IGFBP-3 after mutual adjustment. Conclusions: In this study population, with limited variation in dietary intake, total energy, protein, phytoestrogens and lycopene were not associated with IGF-I and IGFBP-3. Alcohol was inversely, and some measures of phytoestrogen intake were positively associated with plasma IGFBP-1 or -2 concentrations. The roles of IGFBP-1 and -2 in relation to IGF-I bioactivity and cancer deserve further investigation.

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“…However, the portion size was different and we used portion sizes commonly used by Iranians. To mention other limitations, the methods used for dietary assessment are subject to variations (29,41) and therefore comparison between the two methods may not be precise; however, we evaluated the relative validity (42) to partly overcome this problem. Another limitation is that social characteristics, smoking and dietary supplement intake and BMI were not considered in our study.…”

Section: Discussionmentioning

confidence: 99%

Reliability and relative validity of an FFQ for nutrients in the Tehran Lipid and Glucose Study

Mirmiran

Hosseini-Esfahani

Mehrabi

et al. 2009

Public Health Nutr.

952

734

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Objective: To describe the relative validity and reliability of the FFQ used for assessing nutrient intakes of participants in the Tehran Lipid and Glucose Study (TLGS). Design: A total of 132 subjects (sixty-one males and seventy-one females) were included in the study. Dietary data were collected monthly by means of twelve 24 h dietary recalls (24hDR). Subjects completed two, 168-item semi-quantitative FFQ. Blood and urine samples were taken every season for measurement of plasma biomarkers and urinary N and K. Results: Mean age and BMI of the participants were 35?5 (SD 16?8) years and 25?5 (SD 5?2) kg/m 2 , respectively. The mean energy-adjusted and deattenuated correlation coefficients for overall nutrient intake between the 24hDR and FFQ2 were 0?44 and 0?37 in #35-year-olds and .35-year-olds, respectively, and for individual nutrients ranged from 0?24 to 0?71 in men (mean r 5 0?53) and from 0?11 to 0?60 in women (mean r 5 0?39). The mean energy-adjusted reliability coefficients varied from 0?48 in #35-year-olds to 0?65 in .35-year-olds, and ranged from 0?41 to 0?79 in men (mean r 5 0?59) and from 0?39 to 0?74 in women (mean r 5 0?60). The FFQ2 and 24hDR produced exact agreement rates ranging between 39?6 % and 68?3 % in men and between 39?6 % and 54?1 % in women. The ranges of questionnaire validity coefficients, with the sample correlation between the questionnaires and biochemical marker as the lower limit and the estimate obtained by the method of triads as the upper limit, were 0?21-0?56 (protein) and 0?37-0?61 (K). Conclusions: The FFQ developed for the TLGS has reasonable relative validity and reliability for nutrient intakes in Tehranian adults.

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The Dutch EPIC food frequency questionnaire. II. Relative validity and reproducibility for nutrients

Abstract: The FFQ seems adequate for ranking subjects according to intake of energy, macronutrients, dietary fibre and retinol, but it does not yield such good results for beta-carotene, vitamin C for men, vitamin E for women.

Cited by 316 publications

References 19 publications

Validation of a quantitative FFQ for the Barbados National Cancer Study

Validation of a quantitative FFQ for the Barbados National Cancer Study

Dietary Determinants of Circulating Insulin-like Growth Factor (IGF)-I and IGF Binding Proteins 1, -2 and -3 in Women in the Netherlands

Reliability and relative validity of an FFQ for nutrients in the Tehran Lipid and Glucose Study

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