Faculty Opinions recommendation of Dietary assessment methods in epidemiologic studies.

2017 ◽  
Author(s):  
Pagona Lagiou
Keyword(s):  
Dietary Assessment ◽  
Epidemiologic Studies ◽  
Assessment Methods ◽  
Dietary Assessment Methods

scholarly journals Dietary assessment methods in epidemiological research: current state of the art and future prospects

F1000Research ◽  
2017 ◽  
Vol 6 ◽  
pp. 926 ◽  
Author(s):  
Androniki Naska ◽  
Areti Lagiou ◽  
Pagona Lagiou
Keyword(s):  
Dietary Assessment ◽  
Smart Phone ◽  
Food Composition ◽  
Individual Variability ◽  
Assessment Methods ◽  
Nutrient Intakes ◽  
Dietary Biomarkers ◽  
Novel Technologies ◽  
Sources Of Error ◽  
Dietary Assessment Methods

Self-reported dietary intake is assessed by methods of real-time recording (food diaries and the duplicate portion method) and methods of recall (dietary histories, food frequency questionnaires, and 24-hour dietary recalls). Being less labor intensive, recall methods are more frequently employed in nutritional epidemiological investigations. However, sources of error, which include the participants’ inability to fully and accurately recall their intakes as well as limitations inherent in the food composition databases applied to convert the reported food consumption to energy and nutrient intakes, may limit the validity of the generated information. The use of dietary biomarkers is often recommended to overcome such errors and better capture intra-individual variability in intake; nevertheless, it has its own challenges. To address measurement error associated with dietary questionnaires, large epidemiological investigations often integrate sub-studies for the validation and calibration of the questionnaires and/or administer a combination of different assessment methods (e.g. administration of different questionnaires and assessment of biomarker levels). Recent advances in the omics field could enrich the list of reliable nutrition biomarkers, whereas new approaches employing web-based and smart phone applications could reduce respondent burden and, possibly, reporting bias. Novel technologies are increasingly integrated with traditional methods, but some sources of error still remain. In the analyses, food and nutrient intakes always need to be adjusted for total daily energy intake to account for errors related to reporting.

scholarly journals A Novel Food Record App for Dietary Assessments Among Older Adults With Type 2 Diabetes: Development and Usability Study

10.2196/14760 ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. e14760
Author(s):  
Hyunggu Jung ◽  
George Demiris ◽  
Peter Tarczy-Hornoch ◽  
Mark Zachry
Keyword(s):  
Type 2 Diabetes ◽  
Older Adults ◽  
Qualitative Data ◽  
Dietary Assessment ◽  
Assessment Methods ◽  
Smartphone App ◽  
Food Record ◽  
Food Items ◽  
Dietary Assessment Methods

Background More than 1 in 4 people in the United States aged 65 years and older have type 2 diabetes. For diabetes care, medical nutrition therapy is recommended as a clinically effective intervention. Previous researchers have developed and validated dietary assessment methods using images of food items to improve the accuracy of self-reporting over traditional methods. Nevertheless, little is known about the usability of image-assisted dietary assessment methods for older adults with diabetes. Objective The aims of this study were (1) to create a food record app for dietary assessments (FRADA) that would support image-assisted dietary assessments, and (2) to evaluate the usability of FRADA for older adults with diabetes. Methods For the development of FRADA, we identified design principles that address the needs of older adults and implemented three fundamental tasks required for image-assisted dietary assessments: capturing, viewing, and transmitting images of food based on the design principles. For the usability assessment of FRADA, older adults aged 65 to 80 years (11 females and 3 males) were assigned to interact with FRADA in a lab-based setting. Participants’ opinions of FRADA and its usability were determined by a follow-up survey and interview. As an evaluation indicator of usability, the responses to the survey, including an after-scenario questionnaire, were analyzed. Qualitative data from the interviews confirmed the responses to the survey. Results We developed a smartphone app that enables older adults with diabetes to capture, view, and transmit images of food items they consumed. The findings of this study showed that FRADA and its instructions for capturing, viewing, and transmitting images of food items were usable for older adults with diabetes. The survey showed that participants found FRADA easy to use and would consider using FRADA daily. The analysis of the qualitative data from interviews revealed multiple categories, such as the usability of FRADA, potential benefits of using FRADA, potential features to be added to FRADA, and concerns of older adults with diabetes regarding interactions with FRADA. Conclusions This study demonstrates in a lab-based setting not only the usability of FRADA by older adults with diabetes but also potential opportunities using FRADA in real-world settings. The findings suggest implications for creating a smartphone app for an image-assisted dietary assessment. Future work still remains to evaluate the feasibility and validity of FRADA with multiple stakeholders, including older adults with diabetes and dietitians.

scholarly journals Development and Usability Assessment of a Food Record App for Dietary Assessments among Older Adults with Type 2 Diabetes (Preprint)

2019 ◽  
Author(s):  
Hyunggu Jung ◽  
George Demiris ◽  
Peter Tarczy-Hornoch ◽  
Mark Zachry
Keyword(s):  
Older Adults ◽  
Qualitative Data ◽  
Dietary Assessment ◽  
Smartphone Application ◽  
Design Principles ◽  
Assessment Methods ◽  
Food Record ◽  
Food Items ◽  
Usability Assessment ◽  
Dietary Assessment Methods

BACKGROUND More than one in four people in the United States aged 65 years and older have diabetes. For diabetes care, medical nutrition therapy (MNT) is recommended as a clinically effective intervention. Prior researchers have developed and validated dietary assessment methods using images of food items for improving the accuracy of self-reporting over traditional methods. Nevertheless, little is known about the usability of image-assisted dietary assessment methods for older adults with diabetes. OBJECTIVE The aims of this study were: a) to create a food record app for dietary assessments (FRADA) that would support image-assisted dietary assessments, and b) to evaluate the usability of FRADA for older adults with diabetes. METHODS For the development of FRADA, we identified design principles that address the needs of older adults and implemented three fundamental tasks required for image-assisted dietary assessments: capturing, viewing, and transmitting images of food based on the design principles. For the usability assessment of FRADA, older adults aged 65 to 80 (11 females and 3 males) were assigned to interact with FRADA in a lab-based setting. Participants’ opinions of FRADA and its usability were determined by a follow-up survey and interview. As an evaluation indicator of usability, the responses to the survey including an After-Scenario Questionnaire were analyzed. Qualitative data from the interviews confirmed the responses to the survey. RESULTS We developed a smartphone application that enables older adults with diabetes to capture, view, and transmit images of food items they consumed. The findings of this study showed that FRADA and its instructions for capturing, viewing, and transmitting images of food items were usable for older adults with diabetes. The survey showed that FRADA was easy to use, and study participants would consider using FRADA daily. The analysis of the qualitative data from interviews revealed multiple themes, such as the usability of FRADA, potential benefits and features of FRADA, and concerns of older adults with diabetes when interacting with FRADA. CONCLUSIONS This study demonstrates in a lab-based setting, not only the usability of FRADA with older adults who have diabetes, but it also demonstrates potential opportunities using FRADA in real-life settings. The findings suggest implications for creating a smartphone application for an image-assisted dietary assessment. Future work still remains to evaluate the feasibility and validity of FRADA with multiple stakeholders involving older adults with diabetes and dietitians.

Estimating human exposure to perfluoroalkyl acids via solid food and drinks: Implementation and comparison of different dietary assessment methods

2017 ◽  
Vol 158 ◽  
pp. 269-276 ◽  
Author(s):  
Eleni Papadopoulou ◽  
Somrutai Poothong ◽  
Jacco Koekkoek ◽  
Luisa Lucattini ◽  
Juan Antonio Padilla-Sánchez ◽  
...  
Keyword(s):  
Human Exposure ◽  
Dietary Assessment ◽  
Assessment Methods ◽  
Solid Food ◽  
Perfluoroalkyl Acids ◽  
Dietary Assessment Methods

scholarly journals Relationship between ethanol consumption and TBL2 rs17145738 on LDL-C concentration in Japanese adults: a four season 3-day weighed diet record study

BMC Nutrition ◽  
2019 ◽  
Vol 5 (1) ◽  
Author(s):  
S. Akimoto ◽  
C. Goto ◽  
K. Kuriki
Keyword(s):  
Nutrient Intake ◽  
Missing Values ◽  
Genetic Factors ◽  
Dietary Assessment ◽  
Ethanol Consumption ◽  
Assessment Methods ◽  
Seasonal Effects ◽  
Total Dietary Fiber ◽  
Dietary Assessment Methods ◽  
Four Seasons

Abstract Background LDL cholesterol (LDL-C) concentration is modified by dietary and genetic factors; however, little is known about the details of this relationship. Our aim was to investigate the associations taking into account dietary assessment methods, seasonal effects and missing values. Methods Study subjects completed food frequency questionnaires (FFQ) and supplied 3-day weighed dietary records (WDRs) and blood samples in four seasons. Approximately 660,000 single nucleotide polymorphisms (SNPs) were measured. Candidate SNPs related to LDL-C concentration were systematically selected. Multiple imputation was applied for missing values. A total of 312 repeated measures data were used for analyses. After adjusting for season and subjects as fixed and random effects, effects of nutrient intake and SNPs on LDL-C concentration were assessed according to three dietary assessment methods: the FFQ and first and four season 3-day WDRs (4 s-3d WDRs). Results For LDL-C concentration, ethanol consumption derived from all three dietary assessment methods was consistently associated (P < 0.09 for all). Positive and negative relationships were consistently shown with rs651007 and rs1160985 in the first and four seasons; but the latter remained after adjusting for total dietary fiber intake derived from the FFQ and 4 s-3d WDRs (P < 0.05, excepting the first 3-day WDRs). rs599839 was negatively associated after cholesterol intakes derived from the first and 4 s-3d WDRs were considered (P < 0.05 and 0.07, respectively). Each rs17145738 and ethanol consumption based on the 4 s-3d WDRs was related to LDL-C concentration (P < 0.05). Seasonal variations of LDL-C concentration were observed only in summer. Conclusions In contrast to nutrient intake, ethanol consumption was shown to be comprehensively related to LDL-C concentration, regardless of dietary assessment methods. Taking into account seasonal effects, critical relationships with LDL-C concentration for some SNPs, after adjustment for specific nutrients, were revealed. Our findings can be used to help to interpret the relationships between dietary and genetic factors on LDL-C concentration in large-scale epidemiological studies. (10/10 keywords)

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