Services

• Estimates food and beverage intake over a specified period up to one year, usually the previous 2-3 months.
• Participants should have followed their habitual (usual) diets during the defined reporting period.
• The list of foods – arranged into food groups - is regularly updated to reflect current eating habits and nutritional composition of foods.
• The tool estimates diet semi-quantitatively. Respondents record the amount and frequency of consumption of each food and beverage.
• All versions are available online or as paper copies.
• The online format has been administered in clinics, research settings,
  • classrooms and home environments.
     
• Can be self-completed or interviewer administered.
• Analysis of food frequency responses provides estimates of:
  • Daily nutrient intake in total and by food group
  • Frequency of food and beverage consumption (in grams/day).
  • Food group intake e.g. fruit and vegetable or meat intake.
  • A range of novel nutrient and non-nutritive intake databases, these have been developed in-house,
  • A selection of dietary scores and indices are also available to assess the dietary quality of a population.

There are four versions of the questionnaire representing the different age groups available:

Sample copies are available on request.

For validation studies please see the references listed below:

Web-based questionnaire entry:
Kyle J, Marais D, Gilson G, McPherson G. Evaluation of an electronic Scottish collaborative group food frequency questionnaire for British and Irish adults. International Conference on Diet and Activity Methods. Rome, Italy. May 2012 link

Adults FFQ:
Hollis JL, Craig LCA, Whybrow S, Clark H, Kyle JAM, McNeill G. Assessing the relative validity of the Scottish Collaborative Group FFQ for measuring dietary intake in adults. Public Health Nutrition 2017 20 (3) 449-455 doi: 10.1017/S1368980016002421.

Masson LF, McNeill G, Tomany JO, Simpson JA, Peace HS, Wei L, Grubb DA and Bolton-Smith C. Statistical approaches for assessing the relative validity of a food-frequency questionnaire: use of correlation coefficients and the kappa statistic. Public Health Nutrition 2003;6:313-21.

Older adults FFQ:
Jia X, Craig LCA, Aucott LS, Milne AC, McNeill G. Repeatability and validity of a food frequency questionnaire in free-living older people in relation to cognitive function. J Nutr Health Ageing 2008;12:735-41.

Children and Young Persons FFQ:
Craig LCA, McNeill G, Masson LF, Macdiarmid J, Holmes B, Nelson M and Sheehy C. Relative validity of two food-frequency questionnaires for children compared with 4-day diet diaries. Proc Nutr Soc 2010;69: E428.

Adults FFQ and the flavonoids database:
yle JAM, Masson LF, Grubb DA, Duthie GA, McNeil G. Estimating dietary flavonoid intake: comparison of a semi-quantitative food frequency questionnaire with 4-day weighed diet records in a Scottish population. Proc Nutr Soc. 2002;61:69A.

Further validation work is currently in progress for a) the adult FFQ in a comparison with 4-day non-weighed diaries and selected urinary intake biomarkers, and b) the fatty acids database.

Total daily intake and intake by food group. A basic nutrient analysis using McCance and Widdowson's Composition of Foods (7th Edition).

• A list of the nutrient output. This is provided in CVS, Excel or SPSS format.

The questionnaire collects data on dietary supplement use but intake of nutrients from supplements is not calculated by the analysis package. Additional nutrient analysis from alternative databases are available at an extra cost (see below).

Online Questionnaires

• Access charge of £1.00 per FFQ, with a minimum charge of £100 and a maximum charge of £500.

Printed Questionnaires

• Cost of £2. per copy up to 500.
• £1.00 per copy if more than 500 questionnaires are ordered (orders supplied in batches of 100)

Postage and packaging costs will also be added.

*Minimum charge of £200

There are potentially reductions in costs for pilot studies.

Examples of additional nutrient and data analysis:

• Fats and oils coding
  • To allow for a more detailed analysis of types of fatty acids that participants routinely consume.
• Nutrient analysis of additional foods
  • There is a final question asking participants to record details of any foods and drinks not listed in the questionnaire.
• Analysis from additional nutrient databases including:
  • Free sugars
  •  Flavonoids
  •  Fatty acids
  • Lutein and zeaxanthin
  • Caffeine
  • Phytoestrogens
• Frequency and grams/day2 of food groups such as:
  • Fruit & vegetables.
  • Dairy products.
  • Oily fish and white fish.
• Calculation of a range healthy eating dietary indices and scores including:
  • Mediterranean Diet Score.
  • Dietary score linked to the Eatwell Guide
  • Dietary Quality Index based on the Scottish Dietary Guidelines.
  • Dietary Quality Index-International.

Other Services

• Specialist support is available to assist with all stages of the questionnaire data collection, paper FFQ data entry, and nutrient analysis.
• Advice on other dietary patterns methodologies.
• Web pages tailored to an individual project may be subject to an additional charge.

Please contact the team if you have any specific queries regarding data analysis