Social and Behavioral Sciences Commons^™

Issues In Assessing The Validity Of Nutrient Data Obtained From A Food-Frequency Questionnaire: Folate And Vitamin B12 Examples, Victoria Flood, Wayne T. Smith, Karen L. Webb, Paul Mitchell

Faculty of Social Sciences - Papers (Archive)

Objective: 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.

Design: Cross-sectional sample from a population cohort.

Setting: Two postcode areas west of Sydney, Australia.

Subjects: 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).

Results: Folate and vitamin B₁₂ validity data were assessed using different methods. …

The Relationship Between Education And Food Consumption In The 1995 Australian National Nutrition Survey, Anthony Worsley, Roswitha Blasche, Kylie Ball, David Crawford

Faculty of Social Sciences - Papers (Archive)

Objective: To assess the relationship between education and the intake of a variety of individual foods, as well as groups of foods, for Australian men and women in different age groups.

Design: Cross-sectional national survey of free-living men and women.

Subjects: A sample of 2501 men and 2739 women aged 18 years and over who completed the National Nutrition Survey (NNS) 1995.

Methods: Information about the frequency of consumption of 88 food items was obtained using a food-frequency questionnaire in a nation-wide nutrition survey. Irregular and regular consumers of foods were identified according to whether they consumed individual foods less …