scholarly journals Soya intake and plasma concentrations of daidzein and genistein: validity of dietary assessment among eighty British women (Oxford arm of the European Prospective Investigation into Cancer and Nutrition)

2001 ◽  
Vol 86 (3) ◽  
pp. 415-421 ◽  
Author(s):  
Pai K. Verkasalo ◽  
Paul N. Appleby ◽  
Naomi E. Allen ◽  
Gwyneth Davey ◽  
Herman Adlercreutz ◽  
...  
Keyword(s):  
Geometric Mean ◽  
Dietary Assessment ◽  
Plasma Concentrations ◽  
Correlation Coefficients ◽  
Epidemiological Studies ◽  
Dietary Intakes ◽  
Food Diary ◽  
Cross Sectional ◽  
Soya Milk ◽  
Prospective Investigation

Soya products contain high levels of the isoflavones genistein and daidzein, and their glucosides, and may lower the risk of cardiovascular disease, osteoporosis and cancer. The present cross-sectional study investigated plasma concentrations of daidzein and genistein and their correlations with dietary soya consumption in four groups of twenty premenopausal British women. The women were selected from the Oxford arm of the European Prospective Investigation into Cancer and Nutrition using data from food-frequency questionnaires (FFQ) to guarantee a wide variation in soya consumption, and to investigate the utility of the question related to soya milk consumption compared with the utility of the question related to other soya foods. Dietary intakes of isoflavones were additionally assessed by 7 d food diaries. Plasma concentrations of daidzein and genistein were measured by time-resolved fluoroimmunoassay. Geometric mean plasma concentrations (nmol/l) were for the four groups, which were based on increasing soya intake, 4·9, 8·4, 39·2 and 132 for daidzein and 14·3, 16·5, 119 and 378 for genistein. The Spearman correlation coefficients for plasma isoflavone concentrations with estimated dietary intakes were between 0·66 and 0·80 for the diary-based estimates and between 0·24 and 0·74 for the FFQ-based estimates. The correlations for soya milk intakes were clearly higher than the correlations for intakes of other soya foods. We conclude that both the food diary and the FFQ estimate dietary soya isoflavone intakes sufficiently well to use them in epidemiological studies, and that plasma concentrations of daidzein and genistein in Western women who consumed soya products as a part of their regular diet were close to those in Asian populations.

scholarly journals Validation of a Newly Developed Food Frequency Questionnaire to Assess Dietary Intakes of Magnesium

Nutrients ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 2789 ◽  
Author(s):  
Deeptha Sukumar ◽  
Rosemary DeLuccia ◽  
May Cheung ◽  
Rohit Ramadoss ◽  
Tammy Ng ◽  
...  
Keyword(s):  
Food Frequency Questionnaire ◽  
Age Groups ◽  
Rank Correlation ◽  
Correlation Coefficients ◽  
Extended Period ◽  
Normal Weight ◽  
Dietary Intakes ◽  
Food Diary ◽  
Cross Sectional ◽  
Food Frequency

Magnesium (Mg) intake is an important indication of an individual’s Mg status, but no validated food frequency questionnaire (FFQ) to assess intake currently exists. The purpose of this study was to develop and investigate the validity of a semi-quantitative Mg food frequency questionnaire (MgFFQ) against a 14-day food diary to assess average daily Mg intakes. In this cross-sectional study, 135 adults aged 18 to 75 completed the 33-item MgFFQ and a 14-day food diary to assess their Mg intakes. Coefficients of variance, Pearson’s correlation coefficients, and/or Spearman’s rank correlation coefficient tests were used to determine the relationship between the MgFFQ and the average Mg intake from the 14-day food diary among all participants, men, women, age groups, and body mass index (BMI) groups. The correlation between the MgFFQ and the 14-day food diary was significant (p < 0.05) for all participants (r = 0.798), men (r = 0.855), women (r = 0.759), normal weight (r = 0.762), overweight (r = 0.858), and obese (r = 0.675) weight statuses, and in all age groups. The calcium to magnesium intake (Ca:Mg) ratio in all participants was higher than optimal, 3.39 (2.11). Our results suggest that the MgFFQ is a valid method to capture Mg intake over an extended period of time, therefore acting as a valuable tool to quickly determine Mg intake.

scholarly journals Evaluation of urinary resveratrol as a biomarker of dietary resveratrol intake in the European Prospective Investigation into Cancer and Nutrition (EPIC) study

2017 ◽  
Vol 117 (11) ◽  
pp. 1596-1602 ◽  
Author(s):  
Raul Zamora-Ros ◽  
Joseph A. Rothwell ◽  
David Achaintre ◽  
Pietro Ferrari ◽  
Marie-Christine Boutron-Ruault ◽  
...  
Keyword(s):  
Correlation Coefficients ◽  
Cross Sectional Study ◽  
European Population ◽  
Dietary Intakes ◽  
Cross Sectional ◽  
Dietary Recall ◽  
Main Food Source ◽  
Spearman’S Correlation ◽  
Prospective Investigation

AbstractIn vitro studies have shown several beneficial properties of resveratrol. Epidemiological evidence is still scarce, probably because of the difficulty in estimating resveratrol exposure accurately. The current study aimed to assess the relationships between acute and habitual dietary resveratrol and wine intake and urinary resveratrol excretion in a European population. A stratified random subsample of 475 men and women from four countries participating in the European Prospective Investigation into Cancer and Nutrition (EPIC) cross-sectional study, who had provided 24-h urine samples and completed a 24-h dietary recall (24-HDR) on the same day, were included. Acute and habitual dietary data were collected using standardised 24-HDR software and a validated country-specific dietary questionnaire, respectively. Phenol-Explorer was used to estimate the intake of resveratrol and other stilbenes. Urinary resveratrol was analysed using tandem MS. Spearman’s correlation coefficients between estimated dietary intakes of resveratrol and other stilbenes and consumption of wine, their main food source, were very high (r>0·9) when measured using dietary questionnaires and were slightly lower with 24-HDR (r>0·8). Partial Spearman’s correlations between urinary resveratrol excretion and intake of resveratrol, total stilbenes or wine were found to be higher when using the 24-HDR (R2partial approximately 0·6) than when using the dietary questionnaires (R2partial approximately 0·5). Moderate to high correlations between dietary resveratrol, total stilbenes and wine, and urinary resveratrol concentrations were observed. These support the earlier findings that 24-h urinary resveratrol is an effective biomarker of both resveratrol and wine intakes. These correlations also support the validity of the estimation of resveratrol intake using the dietary questionnaire and Phenol-Explorer.

scholarly journals Impact of school lunch type on nutritional quality of English children’s diets

2015 ◽  
Vol 19 (1) ◽  
pp. 36-45 ◽  
Author(s):  
Charlotte EL Evans ◽  
Vera Mandl ◽  
Meaghan S Christian ◽  
Janet E Cade
Keyword(s):  
Primary Schools ◽  
Dietary Intakes ◽  
Evaluation Tool ◽  
Food Diary ◽  
School Lunches ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
School Meal ◽  
Food Standards ◽  
Quality Diet

AbstractObjectiveNutrient and food standards exist for school lunches in English primary schools although packed lunches brought from home are not regulated. The aim of the present study was to determine nutritional and dietary differences by lunch type.DesignA cross-sectional survey was carried out in 2007 assessing diet using the Child and Diet Evaluation Tool (CADET), a validated 24 h estimated food diary. The data were analysed to determine nutritional and dietary intakes over the whole day by school meal type: school meals and packed lunches.SettingFifty-four primary schools across England.SubjectsChildren (n 2709) aged 6–8 years.ResultsChildren having a packed lunch consumed on average 11·0 g more total sugars (95 % CI 6·6, 15·3 g) and 101 mg more Na (95 % CI 29, 173 mg) over the whole day. Conversely, children having a school meal consumed, on average, 4·0 g more protein (95 % CI 2·3, 5·7 g), 0·9 g more fibre (NSP; 95 % CI 0·5, 1·3 g) and 0·4 mg more Zn (95 % CI 0·1, 0·6 mg). There was no difference in daily energy intake by lunch type. Children having a packed lunch were more likely to consume snacks and sweetened drinks; while children having a school meal were more likely to consume different types of vegetables and drink water over the whole day.ConclusionsCompared with children having a school meal, children taking a packed lunch to school consumed a lower-quality diet over the whole day, including higher levels of sugar and Na and fewer vegetables. These findings support the introduction of policies that increase school meal uptake.

scholarly journals OP05 Validation of the Lémann index in Crohn’s disease

2020 ◽  
Vol 14 (Supplement_1) ◽  
pp. S005-S006 ◽  
Author(s):  
B Pariente ◽  
J Torres ◽  
J Burisch ◽  
N Arebi ◽  
B Barberio ◽  
...  
Keyword(s):  
Crohn’S Disease ◽  
Crohn's Disease ◽  
Correlation Coefficients ◽  
Organ Damage ◽  
Epidemiological Studies ◽  
Damage Evaluation ◽  
Cross Sectional ◽  
Pelvic Mri ◽  
Abdominal Mri ◽  
History Of

Abstract Background The Lémann index (LI) is the first instrument developed to measure cumulative structural bowel damage in Crohn’s disease (CD).1 We here report its validation. Methods This was an international, multicentre, prospective cross-sectional observational study. At each centre, 10 inclusions, stratified by known or suspected CD location and duration, were planned. Clinical examination and abdominal MRI had to be performed in all patients, and upper endoscopy, colonoscopy, and pelvic MRI according to CD location. Upper tract (UT), small bowel (SB), colon/rectum (CR), and anus (AN) were divided into 3, 20, 6 and 1 segments, respectively. History of previous surgery was collected per segment. For each segment, 1 gastroenterologist and 1 radiologist per centre, identified the presence of predefined stricturing and/or penetrating lesions of maximal severity (grade 1 to 3) at each investigation. They provided a damage evaluation for each non-resected segment ranging from 0 to 10, 10 corresponding to the damage of a completely resected segment. Investigator organ damage evaluation was calculated as the sum of segmental damage evaluations. Finally, investigators provided a global damage evaluation from 0 to 10 for each patient according to the 4 organ damage scores, calculated as a function of investigator organ damage evaluations, resections and a total number of segments. The correlation between the investigator global damage evaluation and the LI was high on the construction sample, since coefficients to derive the LI were estimated by maximising this correlation, and is expected to be lower on data obtained in new patients by new investigators. Thus, the LI would be validated if the linear regression model of investigator global damage evaluation on LI shows a still high correlation. The same applies to investigator damage evaluation of each organ and each organ component of the LI. Results 134 patients were included in 15 centres, 7 to 10 per centre. Correlation coefficients between investigator organ damage evaluation and each organ component of the LI were 0.91, 0.96, 0.95, and 0.81, for UT, SB, CR and AN, respectively. The correlation coefficient between investigator global damage evaluation and the LI was 0.98 (Figure 1). Proportions of the investigator organ damage evaluation variance explained by each organ component of the LI were 82%, 91%, 89%, 65%, for UT, SB, CR, AN, respectively. This proportion was 96% for the investigator global damage evaluation and the LI. Conclusion The Lémann index is now a validated index to assess cumulative bowel damage in CD that can be used in epidemiological studies and disease modification trials. Reference

Development of a questionnaire and a database for assessing dietary D-limonene intake

2002 ◽  
Vol 5 (6a) ◽  
pp. 939-945 ◽  
Author(s):  
Iman A Hakim ◽  
Vern Hartz ◽  
Ellen Graver ◽  
Robin Whitacre ◽  
David Alberts
Keyword(s):  
Fruit Juice ◽  
Heart Diseases ◽  
Dietary Assessment ◽  
Correlation Coefficients ◽  
Epidemiological Studies ◽  
Assessment Instrument ◽  
Citrus Fruits ◽  
Citrus Peel ◽  
Citrus Juices ◽  
Natural Component

AbstractObjective:Increasing recognition of the potential importance of phytochemicals in the aetiology of cancer and heart diseases has highlighted the need for methods to measure individual phytochemical consumption that are sufficiently simple to be used in large epidemiological studies and whose reproducibility and accuracy have been quantified. D-Limonene is a natural component of a variety of foods and beverages and is found mainly in citrus fruits. However, D-limonene is not assessed by any nationally available analysis database.Design:We designed our study to assess the D-limonene content of different citrus juices and beverages and to develop a dietary assessment instrument to measure consumption of citrus foods (fruit, juice and peel) and D-limonene intake and test it for reliability.Subjects and methods:A total of 120 citrus juice samples were analysed and used to develop the preliminary D-limonene database. A self-administered citrus food-frequency questionnaire was developed and administered twice to participants, separated by a 2-month interval. The questionnaire was tested for reproducibility of estimates of citrus food consumption and D-limonene intake among 120 participants.Results:Correlation coefficients between the two administrations of the questionnaire ranged from 0.50 for citrus peel use to 0.82 for orange juice. Mean intakes (range) of D-limonene from citrus juices among consumers were 13.0 (0.24–141.9) mg day−1 and 13.2 (0.07–83.9) mg day−1 (r = 0.60, P < 0.001).Conclusion:The citrus frequency questionnaire developed in this study provided highly reproducible estimates of citrus foods, citrus peel and D-limonene intakes. This instrument may be a useful tool in studies of the associations between citrus peel use, D-limonene intake and risk for chronic disease.

scholarly journals I did eat my vegetables. Agreement between parent and child food intake diaries

2016 ◽  
Vol 19 (17) ◽  
pp. 3106-3113 ◽  
Author(s):  
Natalie Rangelov ◽  
L Suzanne Suggs ◽  
Pedro Marques-Vidal
Keyword(s):  
Eating Behaviour ◽  
Correlation Coefficients ◽  
Cross Sectional Study ◽  
Food Groups ◽  
Food Diary ◽  
Kendall’S Tau ◽  
Cross Sectional ◽  
Kendall's Tau ◽  
Puff Pastry ◽  
Level Of Agreement

AbstractObjectiveTo assess the level of agreement between children and their parents when reporting a child’s food consumption.DesignCross-sectional study in which children and parents independently completed 7 d food diaries describing the foods and drinks the child consumed at every meal and snack. The association between child and parent reporting was assessed for nineteen food groups using Kendall’s tau-b non-parametric correlations, Spearman’s rank correlations, kappa coefficients and Lin’s concordance measure of agreement. Results were also stratified by gender of the child and his/her grade at school.SettingHouseholds in Ticino, Switzerland, April–June 2014.SubjectsTwo hundred and ninety-nine children aged 6–12 years and one of their parents participated, with 264 providing complete data (35 % completion rate).ResultsResults showed a high level of agreement between child and parent reporting. Spearman correlations ranged from 0·55 (sauces) and 0·57 (fatty meat) to 0·80 (fruit), 0·83 (starchy foods) and 0·84 (pastries). All nineteen Spearman correlations were significant at the 0·001 level. Kendall’s tau-b correlations ranged from 0·44 (fat meat) to 0·81 (puff pastry). Kappa values showed low to high levels of agreement, ranging from 0·15 (sweets) to 0·77 (puff pastry). Lin’s concordance correlation coefficients ranged from 0·39 (whole grains) to 0·86 (puff pastry).ConclusionsWhen assessing the eating behaviour of children using a 7 d food diary, children’s reports might be as reliable as their parents’.

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

2017 ◽  
Vol 6 ◽  
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.

Relationship Between Smoking, Dietary Intakes and Plasma Levels of Vitamin E and beta-Carotene in Matched Maternal-cord Pairs

1999 ◽  
Vol 69 (4) ◽  
pp. 262-267 ◽  
Author(s):  
Kiely ◽  
Cogan ◽  
Kearney ◽  
Morrissey
Keyword(s):  
Vitamin E ◽  
Pregnant Women ◽  
Plasma Levels ◽  
Dietary Assessment ◽  
Plasma Concentrations ◽  
Beta Carotene ◽  
Alpha Tocopherol ◽  
Dietary Intakes ◽  
Smoking During Pregnancy ◽  
Lipid Ratios

The concentrations of tocopherols and carotenoids are lowered in umbilical cord blood plasma, which may have a negative effect on antioxidant protection in neonates. Smoking may adversely affect dietary intakes and plasma concentrations of carotenoids. The dietary intakes of vitamin E and beta-carotene were assessed in 66 pregnant women (31 smokers and 35 non-smokers) between 10 and 20 weeks gestation using a food frequency questionnaire. The concentrations of alpha-tocopherol and beta-carotene were measured in maternal plasma at the time of the dietary assessment, and in the matched umbilical cords of their newborn after delivery. In smoking and non-smoking mothers, the mean intakes of vitamin E (9.3 [SD 5] and 8.2 [SD 5] mgd–1) and beta-carotene (3464 [SD 1885] and 2977 [SD 1503] mugd–1) were not significantly different. The plasma concentrations of alpha-tocopherol (20.8 [SD 4] and 20.5 [SD 4] mumolL–1), the alpha-tocopherol to lipid ratios (3.2 [SD 0.8] and 3.5 [SD 0.8]) and the plasma concentrations of beta-carotene (0.22 [SD 0.1] and 0.22 [SD 0.1] mumolL–1) were not significantly different in smoking and non-smoking mothers. There were no significant differences in plasma alpha-tocopherol (7.4 [SD 2] and 7.3 [SD 2] mumolL–1), in alpha-tocopherol to lipid ratios (3.2 [SD 0.6] and 2.8 [SD 0.6]) or in beta-carotene concentrations (0.05 [SD 0.04] and 0.03 [SD 0.02] mumolL–1) in cords from newborns of smoking and non-smoking mothers. There was a significant correlation (r = 0.41, P = 0.015) between dietary intakes and plasma concentrations of beta-carotene in non-smoking mothers. However, this relationship was not significant in smoking mothers (r = 0.28, P = 0.12). There were no relationships between dietary intakes and plasma concentrations of tocopherol. These results indicate that smoking during pregnancy does not appear to affect the dietary intakes or plasma concentrations of alpha-tocopherol and beta-carotene in pregnant women or their babies. However, smoking does influence the relationship between dietary intakes and plasma levels of beta-carotene.

scholarly journals Evaluation of an FFQ to assess total energy and nutrient intakes in severely obese pregnant women

2012 ◽  
Vol 16 (8) ◽  
pp. 1427-1435 ◽  
Author(s):  
Nor A Mohd-Shukri ◽  
Jennifer L Bolton ◽  
Jane E Norman ◽  
Brian R Walker ◽  
Rebecca M Reynolds
Keyword(s):  
Pregnant Women ◽  
Weighted Kappa ◽  
Epidemiological Studies ◽  
Dietary Intakes ◽  
Obese Women ◽  
Food Diary ◽  
Nutrient Intakes ◽  
Severely Obese ◽  
Cross Classification ◽  
Absolute Agreement

AbstractObjectiveFFQ are popular instruments for assessing dietary intakes in epidemiological studies but have not been validated for use in severely obese pregnancy. The aim of the present study was to compare nutrient intakes assessed by an FFQ with those obtained from a food diary among severely obese pregnant women.DesignComparison of an FFQ containing 170 food items and a food diary for 4 d (three weekdays and one weekend day); absolute agreement was assessed using the paired t test and relative agreement by Pearson/Spearman correlation, cross-classification into tertiles and weighted kappa values.SettingAntenatal metabolic clinic for severely obese women.SubjectsThirty-one severely obese (BMI at booking ≥40·0 kg/m2) and thirty-two lean control (BMI = 20·0–24·9 kg/m2) pregnant women.ResultsThe findings showed that nutrient intakes estimated by the FFQ were significantly higher than those from the food diary; average correlation was 0·32 in obese and 0·43 in lean women. A mean of 48·5 % of obese and 47·3 % of lean women were correctly classified, while 12·9 % (obese) and 10·0 % (lean) were grossly misclassified. Weighted κ values ranged from −0·04 to 0·79 in obese women and from 0·16 to 0·78 in lean women.ConclusionsOverall, the relative agreement between the FFQ and food diary was lower in the obese group than in the lean group, but was comparable with earlier studies conducted in pregnant women. The validity assessments suggest that the FFQ is a useful tool for ranking severely obese pregnant women according to the levels of their dietary intake.

scholarly journals Differences in Dietary Intakes among Lebanese Adults over a Decade: Results from Two National Surveys 1997–2008/2009

Nutrients ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1738 ◽  
Author(s):  
Lara Nasreddine ◽  
Jennifer J. Ayoub ◽  
Fatima Hachem ◽  
Jiana Tabbara ◽  
Abla M. Sibai ◽  
...  
Keyword(s):  
Eastern Mediterranean ◽  
Dietary Assessment ◽  
Nutrition Transition ◽  
Temporal Trends ◽  
Age Groups ◽  
Eastern Mediterranean Region ◽  
Fats And Oils ◽  
Dietary Intakes ◽  
Cross Sectional ◽  
Middle Income

Amidst the ongoing societal and economic shifts in the Eastern Mediterranean region (EMR), this study aims at investigating temporal trends in food consumption and nutrient intakes among Lebanese adults, by age and sex. Data were derived from two national cross-sectional surveys conducted in Lebanon during two time periods (1997; 2008/2009). In both surveys, dietary assessment was based on 24-h recalls. The results, expressed as % energy intake (%EI), revealed a significant decrease (p < 0.001) in the consumption of bread, fruits, fresh fruit juices, milk and eggs, whereas the consumption of added fats and oils, poultry, cereals and cereal-based products, chips and salty crackers, sweetened milk and hot beverages increased over time (p < 0.001). A significant increase in dietary energy (kcal/day) and fat intake (%EI) was observed, coupled with decreases in carbohydrate intake (%EI) and dietary density of vitamin A and vitamin C (per 1000 kcal) (p < 0.001). These changes were noted in both genders and across age groups, albeit there were some disparities between groups. In conclusion, based on national nutrition surveys, this study is the first to characterize the nutrition transition in a middle-income country of the EMR, shedding light on priority areas for nutrition policies and interventions.

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