scholarly journals Reproducibility of a food frequency questionnaire for adolescents

2007 ◽  
Vol 23 (9) ◽  
pp. 2187-2196 ◽  
Author(s):  
Dirce Maria Lobo Marchioni ◽  
Silvia Maria Voci ◽  
Flávia Emília Leite de Lima ◽  
Regina Mara Fisberg ◽  
Betzabeth Slater
Keyword(s):  
Vitamin C ◽  
Food Frequency Questionnaire ◽  
Extreme Values ◽  
Intraclass Correlation ◽  
Weighted Kappa ◽  
Fat Intake ◽  
Food Frequency ◽  
Unsaturated Fat ◽  
Total Fat ◽  
The City

To assess the reproducibility of a validated 76-item food frequency questionnaire designed to estimate diet in adolescents (Adolescent Food Frequency Questionnaire - AFFQ) in the city of Sao Paulo, Brazil, a test-retest study was conducted (n = 49). Intraclass correlation coefficient (ICC), weighted kappa, and percentage of agreement were used in both crude and energy-adjusted nutrient intakes. Bland Altman plots were used to examine the limits of agreement for energy and macronutrients. The ICC ranged from 0.48 (carbohydrates) to 0.65 (vitamin C) in crude values and from 0.25 (total fat) to 0.58 (vitamin C) in adjusted values. Kappa values ranged from 0.28 (protein and fiber) to 0.56 (unsaturated fat). Bland Altman showed a trend towards larger difference in energy according to increased intake values and a bias towards extreme values for fat intake. The percent of individuals classified in the same category on the two occasions was on average 54.2%. By conclusion, the Adolescent Food Frequency Questionnaire showed reasonable reproducibility and can be used in studies that aim to classify groups into intake categories.

scholarly journals 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 ◽  
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.

Validity and reproducibility of a Food Frequency Questionnaire for German descendants living in Brazil

2021 ◽  
Vol 34 ◽  
Author(s):  
Graciella CHIARELLI ◽  
Doroteia Aparecida HÖFELMANN ◽  
João Luiz Gurgel Calvet da SILVEIRA ◽  
Maria Urania ALVES ◽  
Luciane Coutinho de AZEVEDO
Keyword(s):  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Food Frequency Questionnaire ◽  
Intraclass Correlation ◽  
Reference Method ◽  
Weighted Kappa ◽  
Target Population ◽  
Weak Correlation ◽  
Food Frequency ◽  
Dietary Recall

ABSTRACT Objective This study evaluated reproducibility, relative validity, using a 24-hour recall questionnaire as a reference standard, and estimated calibration factors for a food frequency questionnaire adapted for use with German descendants living in Brazil. Methods The target population consisted of 50 volunteers, of both genders, aged over 20 years, living in a German colonization city in southern Brazil. The food frequency questionnaire was applied twice, in the first and third months of the investigation. During this period, three 24-hour recalls were applied, with an interval of one month between them. Reproducibility was estimated by the intraclass correlation coefficient. Validity was tested by the intraclass correlation coefficient, weighted kappa test and Bland-Altman method. Calibration factors were estimated using linear regression. Results Among the food frequency questionnaires, there was a strong correlation for energy and most of the nutrients corrected for energy. There was a weak correlation between a food frequency questionnaire and a 24-hour dietary recall. However, the exact concordance in the categorization in tertiles among the instruments ranged from 28% (vitamin A) to 52% (fiber and potassium). Gross values of the food frequency questionnaire were reduced with the calibration and approached the consumption data estimated by the 24-hour dietary recall. Conclusions The food frequency questionnaire showed good reproducibility, however, weak correlation with the 24-hour dietary recall. The calibration of the data obtained by the food frequency questionnaire brought them closer to the reference method.

scholarly journals Validity and reproducibility of a food frequency questionnaire for adults of São Paulo, Brazil

2014 ◽  
Vol 17 (4) ◽  
pp. 852-859 ◽  
Author(s):  
Soraya Sant'Ana de Castro Selem ◽  
Aline Martins de Carvalho ◽  
Eliseu Verly-Junior ◽  
Jackeline Venâncio Carlos ◽  
Juliana Araujo Teixeira ◽  
...  
Keyword(s):  
Food Consumption ◽  
Food Frequency Questionnaire ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Reference Method ◽  
Weighted Kappa ◽  
Sao Paulo ◽  
São Paulo ◽  
Polyunsaturated Fat ◽  
Food Frequency

OBJECTIVES: To assess the validity and reproducibility of a food frequency questionnaire developed for estimating the food consumption of adults in São Paulo, Brazil, based population study. METHODS: A sample of individuals aged above 20 years, of both genders, living in São Paulo, was used for the validation study (n = 77) and reproducibility study (n = 74) of the food frequency questionnaire. To verify the validity and reproducibility of energy and 19 nutrients were applied two food frequency questionnaires (60 items) and three 24-hour dietary recalls (24HR - reference method). The validity was verified by Spearman correlation coefficient (crude and de-attenuated) and weighted Kappa, and reproducibility by intraclass correlation coefficients and weighted kappa. RESULTS: In analyzes of validity de-attenuated correlation coefficients ranged from 0.21 (carbohydrate) to 0.74 (energy), and weighted kappa exceeded 0.40 for 30% of the nutrients. Polyunsaturated fat and folate did not show significant correlation and weighted kappa. In reproducibility correlation coefficients ranged from 0.36 (polyunsaturated fat) to 0.69 (calcium), and weighted kappa exceeded 0.40 for 80% of the nutrients. CONCLUSION: The food frequency questionnaire analyzed has good validity and reproducibility for estimating the food consumption of adults in São Paulo compared to the reference method, so it is an appropriate instrument to be used in epidemiological studies on similar populations. Estimates of polyunsaturated fat and folate should be interpreted with caution.

Faktor Gizi dan Prestasi Belajar Siswa Sekolah Menengah Kejuruan

2020 ◽  
Vol 4 (1) ◽  
pp. 69-78
Author(s):  
Nurlaili Handayani ◽  
Muhammad Dawam Jamil ◽  
Ika Ratna Palupi
Keyword(s):  
Vitamin C ◽  
Food Frequency Questionnaire ◽  
Chi Square ◽  
Cross Sectional ◽  
Food Frequency

Faktor gizi merupakan salah satu faktor yang memengaruhi kemampuan belajar anak, termasuk pada siswa Sekolah Menengah Kejuruan (SMK) yang berada pada usia remaja dan disiapkan sebagai tenaga terampil sesuai bidang keahliannya. Penelitian ini bertujuan menganalisis hubungan faktor gizi yang meliputi asupan energi dan zat gizi (karbohidrat, protein, lemak, zat besi, vitamin C, dan zink), kebiasaan sarapan, dan status gizi dengan prestasi belajar pada siswa SMK di Sleman, DIY. Penelitian ini merupakan penelitian observasional cross sectional pada 100 siswa kejuruan dengan jurusan bidang teknik kendaraan ringan yang berasal dari SMKN 2 Depok, SMKN 1 Seyegan dan SMK Muhammadiyah Prambanan. Pengumpulan data menggunakan kuesioner karakteristik individu dan semi kuantitatif Food Frequency Questionnaire (SQ-FFQ). Status gizi ditentukan dengan indikator IMT/U dan prestasi belajar diukur dari nilai ujian praktik mata pelajaran kejuruan. Analisis data menggunakan uji chi-square. Hasil penelitian menunjukkan subjek memiliki asupan energi defisit (68%), protein defisit (40%), lemak defisit (57%), karbohidrat defisit (65%), vitamin C defisit (27%), zat besi defisit (59%), zink defisit (93%), status gizi normal (67%), dan kebiasaan sarapan jarang (35%). Tidak terdapat hubungan antara tingkat asupan energi dan zat gizi serta status gizi dengan prestasi belajar (p>0,05) tetapi ada hubungan signifikan antara kebiasaan sarapan (p=0,010) serta pekerjaan ayah dan ibu (p=0,030 dan p=0,031) dengan prestasi belajar. Disimpulkan bahwa kebiasaan sarapan merupakan faktor gizi yang berhubungan dengan prestasi belajar siswa SMK.

Development, validity and reproducibility of a dish-based semi-quantitative food frequency questionnaire in Iran

2021 ◽  
pp. 1-10
Author(s):  
Samaneh Sadat Ayoubi ◽  
Mohsen Nematy ◽  
Maryam Amini ◽  
Habibollah Esmaily ◽  
Sara Movahed ◽  
...  
Keyword(s):  
Correlation Coefficient ◽  
Food Frequency Questionnaire ◽  
Adult Population ◽  
Intraclass Correlation ◽  
Alpha Tocopherol ◽  
Food Record ◽  
Serum Retinol ◽  
Food Frequency ◽  
Food Items ◽  
Urinary Potassium

BACKGROUND: The food frequency questionnaire (FFQ) is the method of choice for dietary assessment in epidemiological studies. FFQs focusing on mixed-dishes and simple food items are useful where mixed-dishes are an essential part of food consumption. OBJECTIVE: Regarding the fact that the nature of the Iranian diet is mixed-dish, the present study aimed to design and assess the validity and reproducibility of a dish-based semi-quantitative FFQ in the Iranian adult population. METHODS: A list of 302 food items was collected from four geographical areas around Iran. The validation study was conducted on 97 healthy adults. The FFQ was introduced at the beginning of the study and 10 months after; two three-day food records were collected during the study. Also, biomarkers including 24-hour urinary potassium and nitrogen, serum retinol, and alpha-tocopherol were measured. RESULTS: A 142-food-item FFQ was concluded. The correlation coefficient between the second FFQ and the second three-day food record ranged from 0.225 to 0.323 for macronutrients and 0.128 to 0.476 for micronutrients. The percentile agreements (same or adjacent quartile) between the two methods were more than 60%for all nutrients. The intraclass correlation coefficient between FFQs (except for vitamin E) ranged from 0.363 to 0.578. The correlation coefficient between the second FFQ and the second biomarker assessment was 0.241 for protein.

scholarly journals HUBUNGAN ASUPAN SENG DAN VITAMIN C DENGAN KEJADIAN TONSILITIS PADA BALITA USIA 2-5 TAHUN DI KELURAHAN JOMBLANG KECAMATAN CANDISARI KOTA SEMARANG

2019 ◽  
Vol 8 (3) ◽  
pp. 107-114
Author(s):  
Agnes Kalpita Furi ◽  
Aryu Candra ◽  
Ayu Rahadiyanti
Keyword(s):  
Vitamin C ◽  
Food Frequency Questionnaire ◽  
Case Control ◽  
Chi Square ◽  
Food Frequency ◽  
Consecutive Sampling

Latar Belakang : Tonsilitis adalah salah satu penyakit infeksi pada saluran pernafasan atas (ISPA) yang sering terjadi pada balita. Defisiensi seng dan vitamin C mempengaruhi kejadian tonsilitis terkait fungsi dalam sistem imun. Penelitian ini bertujuan untuk menganalisis hubungan asupan seng dan vitamin C dengan kejadian tonsilitis pada balita. Metode : Penelitian ini merupakan penelitian case control. Subjek balita usia 2-5 tahun sebanyak 50 subjek terdiri dari 25 subjek kasus dan 25 subjek kontrol diambil dengan teknik consecutive sampling. Penentuan subjek mengalami tonsilitis atau tidak dilakukan dengan diagnosis dokter melalui pemeriksaan tonsil. Data yang dikumpulkan meliputi riwayat asupan seng dan vitamin C diambil menggunakan Semi Quantitative Food Frequency Questionnaire (SQFFQ), identitas subjek dan orangtua/pengasuh, data hygiene mulut, dan data kebiasaan makan dengan wawancara langsung. Analisis data dengan uji Chi-square, Fisher’s Exact, Mann Whitney, dan Independent T.Hasil : Status gizi subjek sebagian besar tergolong normal berdasarkan BB/TB, BB/U, maupun TB/U. Sebanyak 56% subjek kelompok kasus memiliki kebiasaan makan yang berisiko dan 100% subjek pada kelompok kasus memiliki hygiene mulut yang kurang baik. Subjek kasus memiliki riwayat asupan seng yang kurang sebanyak 52% dan riwayat asupan vitamin C yang kurang sebanyak 80%. Riwayat asupan seng memiliki hubungan dengan kejadian tonsilitis (p<0,05), sedangkan riwayat asupan vitamin C tidak terdapat hubungan dengan kejadian tonsilitis (p>0,05).Kesimpulan : Risiko tonsilitis pada subjek dengan riwayat asupan seng kurang dari kebutuhan 4,3 kali lebih besar dibandingkan subjek dengan riwayat asupan seng cukup. 

scholarly journals Asupan Vitamin C dan E Dengan SQ-FFQ terhadap Fungsi Paru Perokok dan Non-Perokok

2018 ◽  
Vol 14 (2) ◽  
pp. 101
Author(s):  
Siska Rian Pratiwi ◽  
Amelia Lorensia ◽  
Rivan Virlando Suryadinata
Keyword(s):  
Vitamin E ◽  
Vitamin C ◽  
Food Frequency Questionnaire ◽  
Case Control ◽  
Food Frequency

Asap rokok merupakan salah satu sumber radikal bebas eksogen yang dapat menyebabkan kerusakan sel yang mengakibatkan penurunan fungsi paru. Vitamin C dan E merupakan antioksidan yang dapat menghambat aktivitas senyawa oksidan. Tujuan dari penelitian ini adalah mengetahui perbedaan kondisi fungsi paru, asupan vitamin C, asupan vitamin E pada perokok aktif dan non perokok, serta pengaruh asupan Vitamin C dan E terhadap kondisi fungsi paru. Desain penelitian yang digunakan adalah case control. Variabel yang diukur meliputi asupan vitamin C dan E dengan semi quantitative-food frequency questionnaire (SQ-FFQ) serta kondisi fungsi paru dengan handheld spirometer. Sampel penelitian ini terdiri dari 63 sampel perokok dan 63 sampel non perokok. Hasil uji menunjukkan fungsi paru pada perokok dan non perokok berbeda signifikan (p=0,00). Asupan vitamin C (p=0,00) dan E (p=0,029) pada perokok aktif dan non perokok juga menunjukkan hasil yang berbeda signifikan.Hasil analisis menunjukkan adanya pengaruh asupan vitamin C (r=0,63) dan vitamin E (r=0,22) terhadap kondisi fungsi paru. Terdapat perbedaan asupan vitamin C,E, dan fungsi paru pada perokok dan non perokok, serta adanya pengaruh asupan vitamin C dan E terhadap fungsi paru.

A Belgian study on the reliability and relative validity of the Health Behaviour in School-Aged Children food-frequency questionnaire

2003 ◽  
Vol 6 (6) ◽  
pp. 581-588 ◽  
Author(s):  
Carine A Vereecken ◽  
Lea Maes
Keyword(s):  
Health Behaviour ◽  
Food Frequency Questionnaire ◽  
Weighted Kappa ◽  
Study Data ◽  
Soft Drinks ◽  
Food Diary ◽  
Food Frequency ◽  
Relative Validity ◽  
School Aged Children ◽  
Food Items

AbstractObjective:In the Health Behaviour in School-Aged Children (HBSC) survey, the frequency of consumption of a limited number of food items – focusing on fibre, calcium and less healthy items – is queried using a 15-item food-frequency questionnaire (FFQ). The present study was conducted to assess the reliability and relative validity of the HBSC FFQ among school pupils in Belgium.Design and subjects:To assess the reliability of the FFQ, 207 pupils aged 11–12 years and 560 pupils aged 13–14 years completed the questionnaire twice, with a test–retest interval of 6 to 15 days. To assess the relative validity of the FFQ, in a first study data were collected as part of the Flemish HBSC 2000 survey: 7072 pupils (11–18 years) completed the FFQ and a 24-hour food behaviour checklist (FBC). In a second study, 101 pupils (11–12 years) completed the FFQ and a 7-day food diary (FD).Results:Reliability – weighted kappa values between test and retest ranged from 0.43 to 0.70, percentage agreement from 37 to 87%, and Spearman correlations from 0.52 to 0.82. Relative validity – comparison of the FBC with the percentage of respondents who should have consumed the food items on a random day, computed from the FFQ, showed good agreement between the FFQ and the FBC for most items. Only for cereals, diet soft drinks and other milk products were considerably higher food frequencies than expected found from the FBC. Comparison of the FFQ with the FD showed overestimation for all but three food items (cheese, soft drinks and chips). Spearman correlations ranged between 0.10 for crisps and 0.65 for semi-skimmed milk.Conclusion:The HBSC FFQ is a reliable questionnaire that can be used for ranking subjects for most food items, although one must consider the overestimation when the FFQ is used for estimating prevalences.

scholarly journals Relative validity of a food frequency questionnaire to assess fruit and vegetable intake in healthy older adults

2020 ◽  
Vol 79 (OCE2) ◽  
Author(s):  
Charlotte Neville ◽  
Michelle McKinley ◽  
Frank Kee ◽  
Ian Young ◽  
Chris Cardwell ◽  
...  
Keyword(s):  
Older Adults ◽  
Food Frequency Questionnaire ◽  
Assessment Tool ◽  
Objective Assessment ◽  
Reference Method ◽  
Weighted Kappa ◽  
Fruit And Vegetable ◽  
Food Diary ◽  
Food Frequency ◽  
Time Points

AbstractAccurate assessment of dietary intake in older populations is important for determining the role of diet in healthy ageing. The food frequency questionnaire (FFQ) is a commonly used dietary assessment tool, however there is limited evidence regarding its utility for accurately assessing fruit and vegetable (FV) intake in older adults. The objective of this study was to validate FV intakes estimated from the FFQ used in the Northern Ireland Cohort for the Longitudinal Study of Ageing (NICOLA) against a food diary (FD).A dietary validation study was conducted in a sub-sample of 95 participants (45 males, 50 females, aged > 50 years) from NICOLA. Participants were asked to complete a FFQ and 4-day FD (reference method) at two time-points (Month 0 and Month 6). Self-reported FV intakes were compared between methods using Spearman's correlation coefficients, examining the percentage of participants classified into the same or adjacent quartile of FV intake, weighted kappa and Bland-Altman plots.Median fruit, vegetable and total FV intake were significantly higher in the FFQ than the FD at both Month 0 and Month 6 (all p < 0.001). Significant positive correlations (all p < 0.05) were observed between the FFQ and FD estimates of FV intake at both time-points (Month 0, r = 0.57, 0.50 and 0.49 for fruit, vegetables, total FV, respectively; Month 6 r = 0.56, 0.42 and 0.50, respectively). When FV intakes were classified into fourths (based upon quartiles of total FV portions by FD or FFQ), 80 % and 79 % of participants were classified into the same or adjacent quartile at Month 0 and Month 6, respectively. Weighted kappa indicated a fair-moderate agreement between the two methods for FV intake (weighted kappa = 0.35 and 0.37 at Month 0 and Month 6, respectively). Bland-Altman plots showed that, as FV intake increased, there was a widening in limits of agreements, between the FFQ and FD. There was also a significant positive correlation noted between total FV intakes reported at Month 0 and those reported at Month 6 (r = 0.70, p < 0.001).Over-reporting of FV intake was evident with the FFQ compared to the FD, however, the results showed good comparability between the methods in being able to rank older adults according to their FV intake. An additional analysis of FV biomarkers obtained from this sample will provide a more objective assessment of FV intake by each method.

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

2003 ◽  
Vol 6 (8) ◽  
pp. 821-827 ◽  
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.

Sign in / Sign up

Export Citation Format

Share Document