scholarly journals Dietary silicon intake in post-menopausal women

2005 ◽  
Vol 94 (5) ◽  
pp. 813-817 ◽  
Author(s):  
S. A. McNaughton ◽  
C. Bolton-Smith ◽  
G. D. Mishra ◽  
R. Jugdaohsingh ◽  
J. J. Powell
Keyword(s):  
Food Frequency Questionnaire ◽  
Elderly Women ◽  
Essential Element ◽  
Food Composition ◽  
Alcoholic Beverages ◽  
Food Sources ◽  
Dietary Intakes ◽  
Food Frequency ◽  
Si Content ◽  
Post Menopausal

Si has been suggested as an essential element, and may be important in optimal bone, skin and cardiovascular health. However, there are few estimates of dietary Si intakes in man, especially in a UK population. Following the development of a UK food composition database for Si, the aim of the present study was to investigate dietary intakes of Si amongst healthy women aged over 60 years and to identify important food sources of Si in their diet. Healthy, post-menopausal female subjects (>60 years of age; n 209) were recruited from the general population around Dundee, Scotland as part of an unrelated randomised controlled intervention study where dietary intake was assessed using a self-administered, semi-quantitative food-frequency questionnaire at five time-points over a 2-year period. Food composition data on the Si content of UK foods was used to determine the Si content of food items on the food-frequency questionnaire. Mean Si intake was 18·6 (sd 4·6) mg and did not vary significantly across the 2 years of investigation. Cereals provided the greatest amount of Si in the diet (about 30%), followed by fruit, beverages (hot, cold and alcoholic beverages combined) and vegetables; together these foods provided over 75% about Si intake. Si intakes in the UK appear consistent with those reported previously for elderly women in Western populations, but lower than those reported for younger women or for men.

scholarly journals Validity of a food frequency questionnaire for the estimation of total polyphenol intake estimates and its major food sources in the Japanese population: the JPHC FFQ Validation Study

2021 ◽  
Vol 10 ◽  
Author(s):  
Nagisa Mori ◽  
Norie Sawada ◽  
Junko Ishihara ◽  
Ayaka Kotemori ◽  
Ribeka Takachi ◽  
...  
Keyword(s):  
Validation Study ◽  
Food Frequency Questionnaire ◽  
Japanese Population ◽  
Alcoholic Beverages ◽  
Food Sources ◽  
Total Polyphenol ◽  
Food Frequency ◽  
Dietary Polyphenols ◽  
Dietary Record ◽  
Polyphenol Intake

Abstract We examine the validity and reproducibility of a food frequency questionnaire (FFQ) in a subsample of participants in the Japan Public Health Center-based Prospective Cohort Study using a database of polyphenol-containing foods commonly consumed in the Japanese population. Participants of the validation study were recruited from two different cohorts. In Cohort I, 215 participants completed a 28-d dietary record (DR) and the FFQ, and in Cohort II, 350 participants completed DRs and the FFQ. The total polyphenol intake estimated from the 28-d DR and FFQ were log-transformed and adjusted for energy intake by the residual method. Spearman correlation coefficients (CCs) between estimates from the FFQ and 28-d DR as well as two FFQs administered at a 1-year interval were computed. Median intakes of dietary polyphenols calculated from the DRs were 1172 mg/d for men and 1024 mg/d for women in Cohort I, and 1061 mg/d for men and 942 mg/d for women in Cohort II. The de-attenuated CCs for polyphenol intake between the DR and FFQ were 0⋅47 for men and 0⋅37 for women in Cohort I and 0⋅44 for men and 0⋅50 for women in Cohort II. Non-alcoholic beverages were the main contributor to total polyphenol intake in both men and women, accounting for 50 % of total polyphenol intake regardless of cohort and gender, followed by alcoholic beverages and seasoning and spices in men, and seasoning and spices, fruits and other vegetables in women. The present study showed that this FFQ had moderate validity and reproducibility and is suitable for use in future epidemiological studies.

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.

The Food Composition Database for an Italian Food Frequency Questionnaire

1996 ◽  
Vol 9 (1) ◽  
pp. 57-71 ◽  
Author(s):  
Simonetta Salvini ◽  
Patrizia Gnagnarella ◽  
Maria Teresa Parpinel ◽  
Peter Boyle ◽  
Adriano Decarli ◽  
...  
Keyword(s):  
Food Frequency Questionnaire ◽  
Food Composition ◽  
Food Frequency

scholarly journals Validation of a food-frequency questionnaire for use in pregnancy

2006 ◽  
Vol 9 (4) ◽  
pp. 515-522 ◽  
Author(s):  
Theodora Mouratidou ◽  
Fiona Ford ◽  
Robert B Fraser
Keyword(s):  
Pregnant Women ◽  
Correlation Coefficient ◽  
Food Frequency Questionnaire ◽  
Large Scale ◽  
Economic Status ◽  
Dietary Intakes ◽  
Added Sugar ◽  
Food Frequency ◽  
Royal Hallamshire Hospital ◽  
24 Hour Recall

AbstractObjectivesAs a part of an ongoing project to develop a nutritional screening tool, we evaluated the performance of a semi-quantitative food-frequency questionnaire (FFQ) in terms of validity in a Sheffield Caucasian pregnant population using two different statistical approaches – the correlation coefficient and the limits of agreement (LOA). The FFQ was designed specifically for pregnant women and previously used in a large-scale study.DesignA validation study.SettingA community-based field study of a general population of pregnant women booked for their first antenatal appointment at the Jessop Wing, Royal Hallamshire Hospital, Sheffield, UK.SubjectsOne hundred and twenty-three women of different socio-economic status, aged between 17 and 43 years, provided complete dietary data.ResultsThe validity of the FFQ was tested against a series of two 24-hour recalls. As expected, the intakes of all examined nutrients, except for iodine, carotene, vitamin E, biotin, vitamin C and alcohol, were higher when determined by the FFQ than when determined by 24-hour recall. Pearson's correlation coefficient between the two methods ranged from 0.19 (added sugar, zinc) to 0.47 (Englyst fibre). The LOA were broader for some of the nutrients, e.g. protein, Southgate fibre and alcohol, and an increasing lack of agreement between the two methods was identified with higher dietary intakes.ConclusionsThe FFQ gave useful estimates of the nutrient intakes of Caucasian pregnant women and appears to be a valid tool for categorising pregnant women according to dietary intake. The FFQ performed well for most nutrients and had acceptable agreement with the 24-hour recall.

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

2011 ◽  
Vol 27 (11) ◽  
pp. 2197-2206 ◽  
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.

scholarly journals Assessment of Dietary Intakes of Filipino-Americans: Implications for Food Frequency Questionnaire Design

2011 ◽  
Vol 43 (6) ◽  
pp. 505-510 ◽  
Author(s):  
Marilyn Johnson-Kozlow ◽  
Georg E. Matt ◽  
Cheryl L. Rock ◽  
Ruth de la Rosa ◽  
Terry L. Conway ◽  
...  
Keyword(s):  
Food Frequency Questionnaire ◽  
Questionnaire Design ◽  
Filipino Americans ◽  
Dietary Intakes ◽  
Food Frequency

scholarly journals A provisional database for the silicon content of foods in the United Kingdom

2005 ◽  
Vol 94 (5) ◽  
pp. 804-812 ◽  
Author(s):  
J. J. Powell ◽  
S. A. McNaughton ◽  
R. Jugdaohsingh ◽  
S. H. C. Anderson ◽  
J. Dear ◽  
...  
Keyword(s):  
Human Health ◽  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Food Composition ◽  
Mineral Waters ◽  
Emission Spectrometry ◽  
Dietary Intakes ◽  
Cereal Products ◽  
Si Content ◽  
The Uk

Si may play an important role in bone formation and connective tissue metabolism. Although biological interest in this element has recently increased, limited literature exists on the Si content of foods. To further our knowledge and understanding of the relationship between dietary Si and human health, a reliable food composition database, relevant for the UK population, is required. A total of 207 foods and beverages, commonly consumed in the UK, were analysed for Si content. Composite samples were analysed using inductively coupled plasma–optical emission spectrometry following microwave-assisted digestion with nitric acid and H2O2. The highest concentrations of Si were found in cereals and cereal products, especially less refined cereals and oat-based products. Fruit and vegetables were highly variable sources of Si with substantial amounts present in Kenyan beans, French beans, runner beans, spinach, dried fruit, bananas and red lentils, but undetectable amounts in tomatoes, oranges and onions. Of the beverages, beer, a macerated whole-grain cereal product, contained the greatest level of Si, whilst drinking water was a variable source with some mineral waters relatively high in Si. The present study provides a provisional database for the Si content of UK foods, which will allow the estimation of dietary intakes of Si in the UK population and investigation into the role of dietary Si in human health.

Sign in / Sign up

Export Citation Format

Share Document