Relative validity of a 3 d estimated food record in German toddlers

AbstractObjectiveTo determine the relative validity of a 3 d estimated food record (EFR) used to assess energy and nutrient intakes in toddlers, using a 3 d weighed food record (WDR) as the reference method.DesignParents reported the food and beverage intakes of their children using an EFR concurrently with a WDR over three consecutive days. Estimation of mean differences, Spearman correlation coefficients, cross-classifications and Bland–Altman plots were used to assess the agreement between the intakes of energy and fourteen nutrients obtained from the EFR and the WDR.SettingData obtained from a representative sample of infants or toddlers in Germany.SubjectsSixty-seven toddlers aged 10–36 months who had completed an EFR for a 3 d recording period that corresponded to the WDR were included in the present analysis.ResultsEnergy and nutrient intakes did not differ between the EFR and the WDR, except for linoleic acid and retinol. For all dietary intakes, Spearman rank correlation coefficients between the EFR and the WDR ranged from 0·35 to 0·80 (P ≤ 0·004). The proportion of participants correctly classified into quartiles ranged from 75 % for ascorbic acid intake to 96 % for Fe intake, and the percentage of misclassification was 9 % or less. The weighed κ values ranking the participants ranged from 0·23 for ascorbic acid intake to 0·59 for Fe intake. The Bland–Altman plots indicated a good agreement for all dietary intakes estimated from the EFR.ConclusionsOur study suggests that this EFR is a valid assessment instrument for estimating the energy and nutrient intakes among toddlers at the group level.

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Relative validity of a semi-quantitative FFQ in 3-year-old Polish children

Public Health Nutrition ◽

10.1017/s1368980013002292 ◽

2013 ◽

Vol 17 (8) ◽

pp. 1738-1744 ◽

Cited By ~ 9

Author(s):

Elżbieta Sochacka-Tatara ◽

Agnieszka Pac

Keyword(s):

Dietary Intake ◽

Correlation Coefficient ◽

Rank Correlation ◽

Reference Method ◽

Rank Test ◽

Dietary Intakes ◽

Nutrient Intakes ◽

Relative Validity ◽

Bland Altman Method ◽

Level Of Agreement

AbstractObjectivesThe aim of the study was to assess the relative validity of a semi-quantitative FFQ (SFFQ) which measures the usual dietary intake of 3-year-old children.DesignThe children's daily dietary intake was measured using the SFFQ. The average intake of three 24 h dietary recalls (24hDR) was calculated as a reference method. Wilcoxon's rank test and Spearman's rank-correlation coefficient were used to compare nutrient intakes assessed by both methods. The level of agreement between the SFFQ and the repeated 24hDR was determined by the Bland–Altman method. To assess the agreement in quartile distribution, the weighted kappa coefficient (κw) was used.SettingKrakow, Poland.SubjectsOne hundred and forty-three 3-year-old children and their mothers, participants of a prospective cohort study.ResultsOverall, the SFFQ overestimated energy and nutrient intakes compared with the repeated 24hDR. The median correlation coefficient for energy and nutrient intakes was 0·456, with higher results for Ca, P and riboflavin. Although theκwvalue showed only slight to fair agreement between the two methods, about 75 % of the children were classified into the same or adjacent quartile and the level of agreement assessed by the Bland–Altman method for most of the nutrients investigated was good.ConclusionsThe study indicated that the SFFQ might be a useful tool to assess dietary intakes of nutrients by small children, especially for ranking them according their nutrient intake.

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Relative validity and reliability of a novel diet quality assessment tool for athletes: the Athlete Diet Index

British Journal Of Nutrition ◽

10.1017/s000711452000416x ◽

2020 ◽

pp. 1-13

Author(s):

Louise Capling ◽

Janelle A. Gifford ◽

Kathryn L. Beck ◽

Victoria M. Flood ◽

Fiona Halar ◽

...

Keyword(s):

Diet Quality ◽

Assessment Tool ◽

Intraclass Correlation ◽

Rank Correlation ◽

Correlation Coefficients ◽

Systematic Bias ◽

Validity And Reliability ◽

Food Record ◽

Good Reliability ◽

Relative Validity

Abstract Diet quality indices are a practical, cost-effective method to evaluate dietary patterns, yet few have investigated diet quality in athletes. This study describes the relative validity and reliability of the recently developed Athlete Diet Index (ADI). Participants completed the electronic ADI on two occasions, 2 weeks apart, followed by a 4-d estimated food record (4-dFR). Relative validity was evaluated by directly comparing mean scores of the two administrations (mAdm) against scores derived from 4-dFR using Spearman’s rank correlation coefficient and Bland–Altman (B–A) plots. Construct validity was investigated by comparing mAdm scores and 4-dFR-derived nutrient intakes using Spearman’s coefficient and independent t test. Test–retest reliability was assessed using paired t test, intraclass correlation coefficients (ICC) and B–A plots. Sixty-eight elite athletes (18·8 (sd 4·2) years) from an Australian sporting institute completed the ADI on both occasions. Mean score was 84·1 (sd 15·2; range 42·5–114·0). The ADI had good reliability (ICC = 0·80, 95 % CI 0·69, 0·87; P < 0·001), and B–A plots (mean 1·9; level of agreement −17·8, 21·7) showed no indication of systematic bias (y = 4·57–0·03 × x) (95 % CI −0·2, 0·1; P = 0·70). Relative validity was evaluated in fifty athletes who completed all study phases. Comparison of mAdm scores with 4-dFR-derived scores was moderate (rs 0·69; P < 0·001) with no systematic bias between methods of measurement (y = 6·90–0·04 × x) (95 % CI −0·3, 0·2; P = 0·73). Higher scores were associated with higher absolute nutrient intake consistent with a healthy dietary pattern. The ADI is a reliable tool with moderate validity, demonstrating its potential for application to investigate the diet quality of athletes.

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Validation of an estimated food record

Public Health Nutrition ◽

10.1017/phn2005922 ◽

2006 ◽

Vol 9 (7) ◽

pp. 934-941 ◽

Cited By ~ 11

Author(s):

Anne Chinnock

Keyword(s):

Rural Areas ◽

Correlation Coefficients ◽

Reference Method ◽

Food Group ◽

Costa Rican ◽

Food Record ◽

Nutrient Intakes ◽

Average Intake ◽

Weighed Food Record ◽

Polyunsaturated Fats

AbstractObjectiveTo validate an estimated food record (EFR), using a weighed food record (WFR) as the reference method, for the determination of food consumption and nutrient intakes in a group of Costa Rican adults.DesignFor the WFR, all foods consumed by subjects during seven consecutive days were weighed and recorded by nutrition students. Two EFRs (a 4-day and a 3-day record) were recorded by subjects with the use of home measures and photographs to estimate amounts.SettingCosta Rica.SubjectsSixty adults: 30 men and 30 women; 30 living in urban and 30 in rural areas.ResultsThe EFR gave statistically significant lower average intake estimates for energy and 12 of the 22 nutrients examined. The correlation coefficients ranged from 0.68 (polyunsaturated fats) to 0.87 (calcium). The percentage of subjects classified into the same quartile ranged from 45.0% (polyunsaturated fats) to 68.3% (vitamin B12). For all nutrients except vitamin C, 0 or 1.7% were misclassified into extreme quartiles. For food group consumption, the EFR gave statistically significant lower estimates for six of the 17 groups and correlation coefficients ranged from 0.22 (fish) to 0.93 (beverages). Greater differences in estimates of mean energy and nutrient intakes were detected among subjects from rural areas, caused in part by a tendency to underestimate the amounts of rice and beans consumed.ConclusionValidation of the EFR using a WFR as the reference method gave results that compare favourably with those reported by other authors, and support the use of the EFR for dietary surveys among Costa Rican adults.

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Relative Validity and Reproducibility of a New 44-Item Diet and Food Frequency Questionnaire Among Adults: Online Assessment (Preprint)

10.2196/preprints.9113 ◽

2017 ◽

Author(s):

Aurélie Affret ◽

Douae El Fatouhi ◽

Courtney Dow ◽

Emmanuelle Correia ◽

Marie-Christine Boutron-Ruault ◽

...

Keyword(s):

Large Scale ◽

Intraclass Correlation ◽

Daily Intake ◽

Correlation Coefficients ◽

Food Group ◽

Dietary Intakes ◽

Nutrient Intakes ◽

Food Frequency ◽

Relative Validity ◽

Reproducibility Study

BACKGROUND Dietary questionnaires currently available which can assess the habitual diet are timely, costly, or not adapted well to the modern diet; thus, there is a need for a shorter food frequency e-Questionnaire (FFeQ) adapted to Western diets, in order to properly estimate energy and macronutrient intakes or rank individuals according to food and nutrient intakes. OBJECTIVE The aim of this study was to evaluate the relative validity and reproducibility of a 30-minute and 44-item FFeQ in a sample of adults obtained from the general population. METHODS A sample of French adults was recruited through social media and an advertising campaign. A total of 223 volunteers completed the FFeQ twice at one-year intervals and were included in the reproducibility study. During that interval, 92 participants completed three-to-six 24-hour recalls and were included in the validity study. Nutrient and dietary intakes were computed for all validity and reproducibility participants. The level of agreement between the two methods was evaluated for nutrient and food group intakes using classification into quintiles of daily intake, correlation coefficients and Bland-Altman plots. RESULTS For relative validity, correlation coefficients ranged from 0.09 to 0.88 (unadjusted correlation coefficients, median: 0.48) and 0.02 to 0.68 (deattenuated and energy adjusted correlation coefficients, median: 0.50) for food group and nutrient intakes, respectively. The median proportion of subjects classified into the same or adjacent quintile was 73% and 66% for food and nutrient intakes, respectively. Bland-Altman plots showed good agreement across the range of intakes. Regarding reproducibility, intraclass correlation coefficients ranged from 0.33 to 0.72 (median: 0.60) and 0.55 to 0.73 (median: 0.64), for food and nutrient intakes, respectively. CONCLUSIONS The FFeQ showed acceptable validity and reproducibility in a sample of adults based on their food and nutrient intakes. The FFeQ is a promising and low-cost tool that can be used in large-scale online epidemiological studies or clinical routines and could be integrated into evidence-based smartphone apps for assessing diet components.

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Assessing the relative validity of a new, web-based, self-administered 24 h dietary recall in a French-Canadian population

Public Health Nutrition ◽

10.1017/s1368980018001611 ◽

2018 ◽

Vol 21 (15) ◽

pp. 2744-2752 ◽

Cited By ~ 18

Author(s):

Jacynthe Lafrenière ◽

Catherine Laramée ◽

Julie Robitaille ◽

Benoît Lamarche ◽

Simone Lemieux

Keyword(s):

Quebec City ◽

Dietary Intakes ◽

Food Record ◽

Nutrient Intakes ◽

French Canadians ◽

Web Based ◽

Relative Validity ◽

Dietary Recall ◽

Canadian Population ◽

Cross Classification

AbstractObjectiveTo assess the relative validity of a new, web-based, self-administered 24 h dietary recall, the R24W, for assessment of energy and nutrient intakes among French Canadians.DesignEach participant completed a 3d food record (FR) and the R24W on three occasions over a 4-week period. Intakes of energy and of twenty-four selected nutrients assessed by both methods were compared.SettingQuébec City metropolitan area.SubjectsFifty-seven women and fifty men (mean (sd) age: 47·2 (13·3) years).ResultsEquivalent proportions of under-reporters were found with the R24W (15·0%) and the FR (23·4%). Mean (sd) energy intake from the R24W was 7·2% higher than that from the FR (10 857 (3184) kJ/d (2595 (761) kcal/d) v. 10 075 (2971) kJ/d (2408 (710) kcal/d); P<0·01). Significant differences in mean nutrient intakes between the R24W and the FR ranged from –54·8% (i.e. lower value with R24W) for niacin to +40·0% (i.e. higher value with R24W) for alcohol. Sex- and energy-adjusted deattenuated correlations between the two methods were significant for all nutrients except Zn (range: 0·35–0·72; P<0·01). Cross-classification demonstrated that 40·0% of participants were classified in the same quartile with both methods, while 40·0% were classified in the adjacent quartile and only 3·6% were grossly misclassified (1st v. 4th quartile). Analysis of Bland–Altman plots revealed proportional bias between the two assessment methods for 8/24 nutrients.ConclusionsThese data suggest that the R24W presents an acceptable relative validity as compared with the FR for estimating usual dietary intakes in a cohort of French Canadians.

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Development and Relative Validity of a Semiquantitative Food Frequency Questionnaire to Estimate Dietary Intake among a Multi-Ethnic Population in the Malaysian Cohort Project

Nutrients ◽

10.3390/nu13041163 ◽

2021 ◽

Vol 13 (4) ◽

pp. 1163

Author(s):

Suzana Shahar ◽

Mohd Razif Shahril ◽

Noraidatulakma Abdullah ◽

Boekhtiar Borhanuddin ◽

Mohd Arman Kamaruddin ◽

...

Keyword(s):

Vitamin C ◽

Correlation Coefficient ◽

Food Frequency Questionnaire ◽

Intraclass Correlation ◽

Correlation Coefficients ◽

Weighted Kappa ◽

Dietary Intakes ◽

Food Frequency ◽

Relative Validity ◽

Spearman’S Correlation

Measuring dietary intakes in a multi-ethnic and multicultural setting, such as Malaysia, remains a challenge due to its diversity. This study aims to develop and evaluate the relative validity of an interviewer-administered food frequency questionnaire (FFQ) in assessing the habitual dietary exposure of The Malaysian Cohort (TMC) participants. We developed a nutrient database (with 203 items) based on various food consumption tables, and 803 participants were involved in this study. The output of the FFQ was then validated against three-day 24-h dietary recalls (n = 64). We assessed the relative validity and its agreement using various methods, such as Spearman’s correlation, weighed Kappa, intraclass correlation coefficient (ICC), and Bland–Altman analysis. Spearman’s correlation coefficient ranged from 0.24 (vitamin C) to 0.46 (carbohydrate), and almost all nutrients had correlation coefficients above 0.3, except for vitamin C and sodium. Intraclass correlation coefficients ranged from −0.01 (calcium) to 0.59 (carbohydrates), and weighted Kappa exceeded 0.4 for 50% of nutrients. In short, TMC’s FFQ appears to have good relative validity for the assessment of nutrient intake among its participants, as compared to the three-day 24-h dietary recalls. However, estimates for iron, vitamin A, and vitamin C should be interpreted with caution.

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Validation of a semi-quantitative FFQ for 18-month-old toddlers: the Growing Up in Singapore Towards Healthy Outcomes (GUSTO) study

Public Health Nutrition ◽

10.1017/s1368980019000557 ◽

2019 ◽

Vol 22 (11) ◽

pp. 1990-2000 ◽

Cited By ~ 1

Author(s):

Hui Xian Lim ◽

Jia Ying Toh ◽

Kok Hian Tan ◽

Yap-Seng Chong ◽

Fabian Yap ◽

...

Keyword(s):

Rank Order ◽

Reference Method ◽

Clinic Visit ◽

Rank Test ◽

Growing Up ◽

Dietary Intakes ◽

Nutrient Intakes ◽

Signed Rank ◽

Bland Altman Method ◽

Signed Rank Test

AbstractObjectiveDietary intake of toddlers has been of growing interest due to its long-term consequences on health. However, previous works have focused largely on Caucasian populations and less is known about Asian toddlers. We aimed to validate a semi-quantitative FFQ designed to assess dietary intakes of 18-month-old toddlers in a multi-ethnic Asian cohort.DesignAn FFQ of ninety-four food items, identified based on food records of 12-month-old GUSTO children, the Southampton Women’s Survey 12 Month Infancy Questionnaire and inputs from paediatric dietitians, was filled out two weeks before the 18th-month clinic visit. As the reference method, two non-consecutive 24 h recalls (24HR) were administered during and two weeks after the clinic visit. FFQ nutrient intakes were validated against averaged 24HR nutrient intakes, using the Wilcoxon signed-rank test, Spearman’s rank-order correlation, cross-classification and the Bland–Altman method.SettingData from the Singapore Growing Up in Singapore Towards Healthy Outcomes (GUSTO) mother–offspring birth cohort.ParticipantsToddlers (n 188) aged 18 months.ResultsAbsolute nutrient intakes from the FFQ were significantly higher than from the 24HR, except for vitamin A. After energy adjustments, r range was 0·56–0·78 (macronutrients) and 0·40–0·54 (micronutrients). De-attenuation increased r to 0·58–0·96 and 0·45–0·65 for macro- and micronutrients, respectively. Of participants, ≥82·4 % (macronutrients) and ≥77·7 % (micronutrients) were classified in the same and adjacent quartiles. No clear systematic increase in intake differences with increasing mean intake was observed in Bland–Altman plots.ConclusionsThis FFQ can provide a satisfactory assessment of toddlers’ energy-adjusted nutrient intakes, as well as accurately rank them in a group.

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Reproducibility and validity of a food-frequency questionnaire for use among low-income Brazilian workers

Public Health Nutrition ◽

10.1079/phn2003505 ◽

2003 ◽

Vol 6 (8) ◽

pp. 821-827 ◽

Cited By ~ 33

Author(s):

Nélida Schmid Fornés ◽

Maria Luiza Ferreira Stringhini ◽

Berenice Müller Elias

Keyword(s):

Vitamin C ◽

Total Energy ◽

Low Income ◽

Food Frequency Questionnaire ◽

Pearson Correlation ◽

Correlation Coefficients ◽

Reference Method ◽

Nutrient Intakes ◽

Low Literacy ◽

Food Frequency

AbstractObjectives:To assess the reproducibility and validity a 127-item, habitual intake, food-frequency questionnaire (FFQ), developed for low-income and low-literacy Brazilian workers, by comparison with a 24-hour dietary recall (24-HDR).Design:The FFQ and 24-HDR were interviewer-administered at the local workplace to each subject twice, with a period of 6 months between estimates; and four 24-HDRs were conducted during the 4-month period between the two FFQs (FFQ1 and FFQ2). Reproducibility was tested by comparing mean nutrient intakes from the two FFQs. Validity was determined by comparing the mean nutrient intakes from the FFQs with the corresponding averages of the six 24-HDRs (reference method).Setting:Goiânia City, in Central West Brazil.Subjects:The study was based on 104 (62 women and 42 men) subjects, aged 18 to 60 years, who were randomly selected.Results:Dietary intake from the FFQ was higher than from the 24-HDR. Reproducibility was assessed by Pearson correlation coefficients for nutrients from FFQ1 and FFQ2, and ranged from 0.23 for retinol to 0.69 for total energy (mean 0.52). Intra-class coefficients for nutrients averaged by the 24-HDRs ranged from 0.29 for vitamin C to 0.76 for total energy; retinol was not significant. In the validation study, correlation between the FFQ and the 24-HDR ranged between 0.21 for vitamin C and 0.70 for total energy (mean 0.50). Adjusting for total energy lowered the coefficients, except for calcium, retinol and vitamin C. Coefficients increased with attenuation, ranging from 0.35 for carbohydrate to 0.65 for calcium.Conclusions:Results indicate that this questionnaire had satisfactory reproducibility and reasonable validity.

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Quality of food-frequency questionnaire validation studies in the dietary assessment of children aged 12 to 36 months: a systematic literature review

Journal of Nutritional Science ◽

10.1017/jns.2017.12 ◽

2017 ◽

Vol 6 ◽

Cited By ~ 15

Author(s):

Amy Lovell ◽

Rhodi Bulloch ◽

Clare R. Wall ◽

Cameron C. Grant

Keyword(s):

Vitamin C ◽

Dietary Intake ◽

Validation Studies ◽

English Language ◽

Dietary Assessment ◽

Correlation Coefficients ◽

Reference Method ◽

Summary Score ◽

Dietary Intakes ◽

Short Term

AbstractA child's diet is an important determinant of growth and development. Because of this, the accurate assessment of dietary intake in young children remains a challenge. A systematic search of studies validating FFQ methodologies in children 12 to 36 months of age was completed. English-language articles published until March 2016 were searched using three electronic databases (MEDLINE, EMBASE and CINAHL). Quality assessment of the identified studies was carried out using The Reduced Summary Score and EURopean micronutrient RECommendations Aligned (EURRECA) scoring system. Seventeen studies were included and categorised according to whether they reflected long-term (≥7 d) or short-term (<7 d) intake, or used a biomarker. A total score for each micronutrient was calculated from the mean of the correlation coefficients weighted by the study quality score. At least three validation studies per micronutrient were required for inclusion. Fifteen studies (83 %) that considered validity of the FFQ in assessing nutrient intakes had quality scores from 2·5 to 6·0. Of those, ten (67 %) studies found FFQ to have good correlations in assessing dietary intake (>0·4). Of the nutrients with three or more studies available, FFQ validated using a reference method reflecting short-term intake had a good weighted correlation for Ca (0·51), and acceptable weighted correlations for vitamin C (0·31) and Fe (0·33). Semi-quantitative FFQ were shown to be valid and reproducible when estimating dietary intakes at a group level, and are an acceptable instruments for estimating intakes of Ca, vitamin C and Fe in children 12 to 36 months of age.

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Relative validity of a food-frequency questionnaire developed to assess food intake of schoolchildren living in the Brazilian Western Amazon

Cadernos de Saúde Pública ◽

10.1590/s0102-311x2011001100013 ◽

2011 ◽

Vol 27 (11) ◽

pp. 2197-2206 ◽

Cited By ~ 13

Author(s):

Fernanda Baeza Scagliusi ◽

Mariana Tarricone Garcia ◽

Ana Luiza Coutinho Indiani ◽

Marly Augusto Cardoso

Keyword(s):

Food Intake ◽

Food Frequency Questionnaire ◽

Correlation Coefficients ◽

Dietary Intakes ◽

Food Frequency ◽

Relative Validity ◽

Vitamins A And C ◽

The Mean ◽

Almost All ◽

Good Agreement

This study aimed to assess the relative validity of a food frequency questionnaire (FFQ) developed to assess food intake of schoolchildren from the Brazilian Western Amazon. The dietary intakes of 61 schoolchildren, aged between six and nine 9 years, were measured using two 24-hour dietary recalls and one FFQ, conducted with the children's, mother or guardians. Validity of the FFQ compared to the mean of the two dietary recalls was assessed using Pearson's correlation coefficient adjusted for attenuation and energy intake, Bland & Altman plots and evaluation of agreement levels between the two assessment methods. Energy-adjusted and deattenuated correlation coefficients ranged from -0.03 for vitamin C, to 0.93 for calcium. The mean coefficient was 0.46. The mean proportion of subjects classified within one quintile by the two methods was 66%. The Bland & Altman plots indicated good agreement for almost all nutrients, with a mean limit of agreement of 108%. These results indicate that, although there was a lack of accuracy for certain nutrients, such as vitamins A and C, the FFQ ensures reliable estimates of intake of most nutrients.

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