Skip to main content

Development and validation of a food frequency index using nutritional biomarkers in a sample of middle-aged and older adults

Buy Article:

$51.00 plus tax (Refund Policy)

Abstract Background: 

An index of diet quality, which examines different aspects of a diet concurrently, may facilitate the identification of poor dietary habits in population sub-groups. The objectives of the present study were to develop a food frequency index (FFI) and to test its associations with nutritional biomarkers and nutrient intake. Methods: 

The study comprised a cross-sectional survey among 444 adults aged 55 years and older in Vienna, Austria, and a sub-sample of 226 subjects who provided fasting blood specimen. Data from a qualitative 28-item food-frequency questionnaire were used to develop the FFI. Results: 

FFI scores were positively correlated with plasma concentrations of beta-carotene (r =0.26), beta-cryptoxanthin (r =0.31), zeaxanthin (r =0.19), lutein (r =0.21), phylloquinone (r =0.19), 25-hydroxyvitamin D (r =0.20), and serum high-density lipoprotein (HDL)-cholesterol (r =0.24) and were negatively correlated with the ratio of total : HDL-cholesterol (r = −0.23). Sub-groups with higher FFI scores had, on average, lower intakes of total fat, saturated fat, and dietary cholesterol and higher intakes of total carbohydrates, dietary fibre, and most of the examined micronutrients. Conclusion: 

The FFI as a measure of diet quality has the ability to discern population sub-groups, with reasonable validity, into low- or high-risk dietary habits.
No References
No Citations
No Supplementary Data
No Data/Media
No Metrics

Keywords: diet quality; dietary intake; food-frequency questionnaire; nutritional biomarker

Document Type: Research Article

Publication date: 2009-02-01

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more