Using FFQs

Ordering your FFQs

Complete the Study Account Information Sheet and fax or email it to Nutrition Assessment Shared Resource (NASR) at (206) 667-7864 or ffq@fredhutch.org

You will receive a unique 3-letter project code specific to the processing of your study. If you have multiple studies, each one should have its own 3-letter code. Please fax us a separate account information form for each new study.

Use your code to request FFQ booklets and in ALL correspondence with NASR (see sample FFQs). The FFQs will be shipped to you within three working days.

Using the FFQ

Establish a Quality Assurance (QA) person for your study. Perform QA review before returning FFQs for scanning. See QA guidelines. Additional information on the FFQs is found in the technical documentation.  There are two technical documentations – one for GSEL/MSEL and one for GNA/MNA.

Include FFQ Cover Sheet with each batch of FFQs to be scanned. Use FedEx/UPS to ship. NASR can scan up to 150 FFQs at a time but smaller batches of 50 or less are best for the first few batches.  Smaller batches are recommended so that new users become familiar with the quality assurance measures necessary for successful processing.

Reviewing Data Files and Error Reports from Processed FFQs

FFQs are returned to you with a packing sheet including project Batch ID and run number. You may download your raw nutrient data in SAS, SPSS, Excel and text data formats after logging in at https://ffq2.fhcrc.org/.   The home page of the data page will give you directions for establishing a password.  All staff that review data need their own password and will need to be assigned access via NASR’s Study Manager.  The PI or study coordinator should let NASR know who they want to have access to data.  All that is required is a name and email.   You may convert the test data to the statistical package of your choice.

FFQs are optically scanned at Fred Hutch. Each batch of scanned FFQs yields files containing food consumption data, nutrient intake data, and an error report that specifies questionnaire completion errors (e.g. incomplete erasures, missed questions). These error reports are an important part of quality assurance and it is strongly recommended that investigators carefully review the error report file that match to each returned batch of scanned questionnaires.  Upon reviewing the FFQ’s once you receive them back, you will be able to improve your QA technique and ultimately have cleaner and more accurate data.

Citing NASR and NDSR in Publications

Please cite both the Nutrition Assessment Shared Resource (NASR) and NDSR in publications which use this technology. See information on how to cite NASR/NDSR.

For more information about the development of the FFQs see the list of references that describe FFQ development.

Doing Business with Nutrition Assessment

Arnold Building, 4th floor
(800) 460-7270, (206) 667-4161
nasr@fredhutch.org

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