Data Collection Instruments
- Automated Self-Administered 24-hour Dietary Recall (ASA24)
- Frequently Asked Questions
- Considerations for Using ASA24
- Resources for Study Staff & Participants
- Resource for Funding & Ethics Applications
- Reviewing & Cleaning Data
- Known Issues & Workarounds
- Resources Related to the Healthy Eating Index (HEI)
- SAS Code for Updating Beta Output Files
- Fact Sheet (PDF, 339 KB)
SAS Code for Updating Beta ASA24™ Output Files
Two SAS programs are available to allow researchers to update data files from the Beta version of ASA24.
The ASA24_Beta_Update_Nutrients program (ZIP, 3 MB) updates nutrient data from version 1.0 of the Food and Nutrient Database for Dietary Studies (FNDDS) to version 4.1, which was used by USDA to process the dietary intake data from the 2007-08 National Health and Nutrition Examination Survey (NHANES). The program uses Beta version Individual Foods and Nutrients (INF) and Daily Total Nutrients (TN) files as input and includes steps to replace food codes from FNDDS 1.0 with FNDDS 4.1 codes where necessary, updates data for all nutrients in the Beta files, and adds data for 4 nutrients. A food description variable is also added. The resulting updated INF and TN files are consistent with the output files available from ASA24-2011 (formerly referred to as Version 1). The updated files can be further analyzed by the researcher or merged with data from ASA24-2011.
Researchers may also wish to update MyPyramid Equivalents Database (MPED) values in the Individual Foods and MyPyramid Equivalents (INFMYPHEI) and Daily Total MyPyramid Equivalents (TNMYPHEI) Beta files. The ASA24_Beta_Update_Nutrients_MyP program (ZIP, 3.66 MB) applies the nutrient updates noted above and also updates MyPyramid Equivalents Database (MPED) variables from version 1.0 to an updated version based on MPED, version 2.0 and the USDA's Center for Nutrition Policy and Promotion's MPED Addendum; nutritionists on the ASA24 team imputed values for nine food codes for which MyPyramid Equivalents have not yet been assigned by USDA.
These programs have been tested using SAS, version 9.2.
ASA24™ is a trademark of HHS.
Last Modified: 25 Feb 2014