Issues in assessing the validity of nutrient data obtained from a food-frequency questionnaire: folate and vitamin B12 examples

Public Health Nutrition
Victoria Mary FloodPaul Mitchell

Abstract

To compare methods used to assess the validity of nutrient intake data obtained from a food-frequency questionnaire (FFQ), using folate and vitamin B12 as nutrient examples. Cross-sectional sample from a population cohort. Two postcode areas west of Sydney, Australia. In total, 2895 people aged 49 years and older provided dietary data using a semi-quantitative FFQ (79% of 3654 subjects examined). The validity of the FFQ was assessed against three 4-day weighed food records (WFRs) completed by 78 people (mean age 70 years). Folate and vitamin B12 validity data were assessed using different methods. The Spearman ranked correlations (energy-adjusted) were 0.66 for folate and 0.38 for vitamin B12. Using the Bland-Altman method, following loge transformation, no linear trend existed between the differences and means for folate and vitamin B12. Large differences existed between the FFQ and WFR in individual cases, particularly for vitamin B12. Finally, data were divided into quintile categories for the test and reference method: 79% classified folate within one quintile, 65% classified vitamin B12 within one quintile; there was no gross misclassification for folate and only 3% misclassification for vitamin B12. Different methods of a...Continue Reading

References

Jan 1, 1988·American Journal of Epidemiology·W C WillettF E Speizer
Jul 1, 1986·American Journal of Epidemiology·W Willett, M J Stampfer
Oct 1, 1993·International Journal of Epidemiology·R L Thompson, B M Margetts
Jul 11, 1998·Australian and New Zealand Journal of Public Health·W SmithP W Harvey
Dec 29, 1998·American Journal of Epidemiology·W C Willett
Mar 20, 2001·Public Health Nutrition·A Tomkins

❮ Previous
Next ❯

Citations

Oct 2, 2012·Nutrition, Metabolism, and Cardiovascular Diseases : NMCD·J C Y LouieP Mitchell
Jan 27, 2010·The British Journal of Nutrition·Patricia Henríquez-SánchezLluis Serra-Majem
Jan 27, 2010·The British Journal of Nutrition·Adriana Ortiz-AndrellucchiLluís Serra-Majem
Aug 27, 2009·Public Health Nutrition·Tang K HongDavid Sibbritt
Sep 12, 2009·The International Journal of Behavioral Nutrition and Physical Activity·Jane F WatsonManohar L Garg
Jul 28, 2012·The Journal of Nutrition, Health & Aging·D C MitchellT J Hartman
Jun 8, 2011·Canadian Journal of Dietetic Practice and Research : a Publication of Dietitians of Canada = Revue Canadienne De La Pratique Et De La Recherche En Diététique : Une Publication Des Diététistes Du Canada·Bryna ShatensteinWilliam Fraser
Oct 16, 2012·Molecular Nutrition & Food Research·Jin Young ParkNadia Slimani
Feb 24, 2011·Nephrology·Giovanni F M StrippoliPaul Mitchell
Jun 13, 2006·Clinical Nutrition : Official Journal of the European Society of Parenteral and Enteral Nutrition·Paul S MylesPhilip Peyton
Nov 17, 2015·Journal of Nutrition in Gerontology and Geriatrics·Katherine KentVictoria M Flood
Oct 18, 2016·International Journal of Food Sciences and Nutrition·Saman KhalesiJing Sun
Dec 25, 2010·Cadernos de saúde pública·Marly Augusto CardosoElaine Cristina Laguna
Jan 9, 2014·Nephrology, Dialysis, Transplantation : Official Publication of the European Dialysis and Transplant Association - European Renal Association·Suetonia C PalmerGiovanni F M Strippoli
Dec 15, 2017·International Journal of Environmental Research and Public Health·Dominika GłąbskaDominika Guzek
Mar 18, 2010·European Journal of Clinical Nutrition·V M FloodP Mitchell
Sep 28, 2010·Journal of Pediatric Gastroenterology and Nutrition·Bryna ShatensteinHouda Feguery
Mar 27, 2007·The British Journal of Nutrition·Raquel VillegasXiao Ou Shu
Mar 30, 2007·The British Journal of Nutrition·Svetlana V KonstantinovaGrethe S Tell
May 11, 2012·The British Journal of Nutrition·Joanna RussellPaul Mitchell
Oct 11, 2008·The British Journal of Nutrition·Junko IshiharaUNKNOWN JPHC FFQ Validation Study Group
Aug 12, 2017·Nutrition & Dietetics : the Journal of the Dietitians Association of Australia·Katherine Kent, Karen E Charlton
Jan 21, 2011·The Journal of Nutrition·Kathrine J VinknesHelga Refsum
Dec 10, 2008·The American Journal of Clinical Nutrition·Svetlana V KonstantinovaPer M Ueland

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.