National Cancer Institute Home at the National Institutes of Health | www.cancer.gov

Known Issues & Workarounds

The following have been identified as issues with the ASA24 system (ASA24-2014, ASA24-Kids-2014, ASA24-2011, and ASA24-Kids-2012).

Mac Computers

The following issues have been identified when using ASA24 on a Mac computer.

  • Chrome internet browser, version 12+: The Microsoft Silverlight Plug-in, required to run ASA24, is not supported by Chrome, version 12 and higher when Chrome is used on a Mac using OS 10.5.7+. If users attempt to begin ASA24 using Chrome 12+ on a Mac OS 10.5.7, they will be alerted to try a different browser. See a list of compatible operating systems and browsers.External Web Site Policy The Silverlight Download guides have been updated to reflect this issue. [2/2013]
  • Firefox internet browser, version 17+: The Microsoft Silverlight Plug-in is required to run ASA24. Some users who have downloaded Silverlight using a Mac find that they are prompted repeatedly to download. The issue is that Firefox does not automatically enable the plug-in to make Silverlight available. The user must manually enable the plug-in by going to Firefox settings, selecting "Manage add-ons", and pressing the "Enable" button next to Silverlight. See a list of compatible operating systems and browsers.External Web Site Policy The Silverlight Download guides have been updated to reflect this issue. [2/2013]
  • There have been reports of Mac users using Safari on recent versions 10.7 and 10.8 not being able to type in the hour and minute text boxes when entering the time of their meals. Users should try typing the hour in a document or file and cutting and pasting it into the hour text box on the Meal Detail screen. Do the same for the minutes. [2/2013]
  • On Mac computers, the delete key may be interpreted by the Safari internet browser as a "previous page" navigation key. When the delete key is used while entering text into a text box (e.g. to describe the food or drink consumed if 'other' or 'unfound'), the user may be taken back to the landing page. The use of the delete key is discouraged. Further information for advanced users.External Web Site Policy [2/2013]

[Return to top]

Notes Regarding Dietary Supplement Files

If you are using the dietary supplement module in ASA24-2011 and ASA24-2012-Kids, the TNS file contains total nutrient values for all foods, drinks, and supplements combined. However, by design, no data will appear in the TNS file for recalls where respondents reported no dietary supplement use. Data on total nutrient intakes for non-consumers of dietary supplements is included in the TN file only. If desired, Researchers can combine data from these two files to create a single total daily nutrient intake file that includes all study respondents. However, in ASA24-2014, recalls that include no reported supplements will now be included in the TNS file.

If a supplement is reported for which there are no known nutrients in the database, for example some herbal supplements, then the "DATACOMP" field in the TN file has a value of "2" (missing) and nutrient values of 0s. In ASA24-2014, the "DATACOMP" field in the TN file has a value of "3" (unknown) to denote that nutrient values do not exist in the ASA24 database but can be obtained from external sources.

[Return to Top]

Usability Issues

We are aware that a very small number of respondents may not understand the question, "How many slices of bread per sandwich?" and, therefore, when consuming more than 1 sandwich provide the total amount of slices for all sandwiches rather than for one sandwich. Because of this, we recommend that researchers review the MS file for these kinds of errors. Please see Recommendations for data cleaning (PDF, 476 KB) for suggestions regarding how to handle this.

[Return to Top]

Database Errors

Ongoing quality control checking, as well as Researcher reports and queries, have identified errors in the database that affect applied nutrient and food group values. These errors are documented below.

As errors are identified, the ASA24 team will make every effort to promptly notify Researchers and address errors. Typically, errors are addressed through one of the following two actions:

  1. The ASA24 database is corrected: Previously requested and downloaded analysis files may need to be reprocessed in order to apply the newly corrected values. In this case, Researchers will be required to submit a new analysis request using the Researcher Web site. Once a correction is made, all data must be reprocessed before the analysis files will reflect the corrected values. As it takes time to reprocess data, Researchers will be notified by the ASA24 Help Desk when data have been reprocessed and corrected files are available for request. When possible, Researchers will be given an alternative means to apply corrections outside the system directly to their previously requested and downloaded analysis data files. Making the correction manually may be preferable if a Researcher does not want to wait until data have been reprocessed.
  2. Researcher must apply correction:
    1. In rare cases, a correction to the database cannot be applied to recalls collected prior to the correction. For example, in cases in which a question was missing, correcting the database to include the missing question will not correct for missing data in previously collected recalls. In such cases, Researchers will be provided with a fix to address the missing values. Researchers should apply the fix to their analysis files outside the ASA24 system to data for any recalls collected prior to the database correction.
    2. There are two instances in ASA24-2011 and ASA24-Kids-2012 in which a correction cannot be made. Researchers should review their analysis output files and determine if a correction needs to be made outside ASA24.

[Return to top]

Known Errors

Error Number
14 (Fixed as of 12/16/2013)
Error Category
Analysis error
Version Affected
ASA24-2011, ASA24-Kids-2012
Short Description
Database error prevented inclusion of Unfound Supplement name and portion in INS file.
Identified Date
October 2013
Corrective ASA24 Action
Attributes in the probe database were corrected. Recalls were reprocessed as of 12/17/2013.
Suggested Researcher Action
If output files were requested and downloaded prior to 12/17/2013, researchers should request analysis files again using the Researcher Web site.

Error Number
13 (Not fixed)
Error Category
Analysis Error
Version Affected
ASA24-2011, ASA24-Kids-2012
Short Description
When more than 3 eggs are reported for omelet food items where more than 1 omelet is reported, only 1 egg is considered in the overall calculation.
Identified Date
September 2013
Corrective ASA24 Action
This issue will be corrected in the next version of ASA24.
Suggested Researcher Action
Researchers should multiply resulting individual nutrients in the INF file by the number of eggs reported in the “EggNumberOmelet” row in the MS file.

Error Number
12 (No correction possible in current version)
Error Category
Analysis Error
Version Affected
ASA24-2011, ASA24-Kids-2012
Short Description
Processing error prevents proper calculation of ingredient amounts for Nachos prepared by the respondent (FLT=Nachos(self-prepared)).
Identified Date
June 2013
Corrective ASA24 Action
This issue will be corrected in the next version of ASA24.
Suggested Researcher Action
Researchers should use the following steps to identify incorrect data and make corrections.
  1. Review the MySelections output file (MS) to locate foods where the food list term equals "Nachos(self prepared)."
  2. Matching the UserName, IntakeDate, and FoodNum for the FLTs identified in Step 1, locate rows in the INF/INFMYPHEI files with a food code listed in ASA24CorrectionNachos (XLSX, 28 KB) (CSV, 17 KB).
  3. Multiply the integer of the response to MexFoodAmt(from the MS file) for each affected intake and food number by the nutrient/component values in ASA24CorrectionNachos.
  4. Replace the missing nutrients in the INF/INFMYPHEI files for the selected intake/food number with the values calculated in step 2 above.
  5. Correct the TN/TNMYPHEI total files by summing the values for each nutrient/component for the affected Usernames/recalls.

Error Number
11 (No correction possible in current version)
Error Category
Analysis Error
Version Affected
ASA24-2011, ASA24-Kids-2012
Short Description
ASA24 does not present the entire question pathway for multi-component foods (such as meal replacement beverages/protein powder, sandwiches, and salads) reported as an addition to another food.
Identified Date
June 2013
Corrective ASA24 Action
This issue will be corrected in the next version of ASA24.
Suggested Researcher Action
Researchers should use the following instruction to identify incorrect data and contact the ASA24 HelpDesk for guidance.

Review the MySelection output files to locate foods for which the food list term equals one of the FLTs in the ASA24CorrectionMIFoods (XLSX, 13 KB) (CSV, 1 KB) AND the value for FoodType=2 (meaning it was an addition to another food).


Error Number
10 (Fixed as of 6/12/2013)
Error Category
Analysis Error
Version Affected
ASA24-2011, ASA24-Kids-2012
Short Description
Database error prevented correct analysis processing of hot dog and Gardenburger sandwiches.
Identified Date
June 2013
Corrective ASA24 Action
Attributes in the probe database were corrected. Recalls were reprocessed as of 6/19/2013.
Suggested Researcher Action
If output files were requested and downloaded prior to 6/19/2013, Researchers should request analysis files again using the Researcher Web site.

Error Number
9 (Fixed as of 06/13/2013)
Error Category
Missing nutrient data
Version Affected
ASA24-2011, ASA24-Kids-2012
Short Description
Errors in portion data have been reported for various foods.
Identified Date
April 2013
Corrective ASA24 Action
Portion size data were corrected in the ASA24 database. Recalls were reprocessed as of 6/19/2013.
Suggested Researcher Action
If output files were requested and downloaded prior to 6/19/2013, Researchers should request analysis files again using the Researcher Web site.

Several errors in portion data have been corrected in the ASA24 database. Corrections affected the following food categories and food list terms (FLTs). FLTs are the terms the Respondent selects to report foods and beverages:

  • Wine: Wine (light), Wine (nonalcoholic), Wine (rice).
  • Breadsticks (large sizes only): breadsticks, Little Caesars Crazy Bread, Pizza Hut breadsticks.
  • Burgers: Jack-in-the-Box Hamburger with Cheese; McDonald's Big N'Tasty with Cheese.
  • Burgers: for all FLTS where ingredients were collected separately, one affected ingredient (refried beans).
  • Candy: Dover Chocolate Promises
  • Cheese (cups of cubed or shredded cheese only): most FLTs.
  • Crackers: peanut butter filled crackers.
  • Creamers (only for portions "More than 6 tablespoons"): all FLTs.
  • French fries (only for fast food items): all FLTs.
  • Ice cream: all FLTs but only pathway for sugar free ice cream; ice cream cones from fast food restaurants.
  • Pork(only for "don't know" and "more than ..." responses): 9 FLTs
  • Pizza(only for personal size pizzas): most FLTs
  • Salads: FLTS where ingredients were collected separately; affected ingredients: vegetables other than lettuce, fruit, nuts/seeds, croutons.
  • Sandwiches: Arby's Grilled Chicken Deluxe; Subway Roasted Chicken Breast Sub; Wendy's Grilled Chicken Sandwich.
  • Supplements: 163 FLTs affected, out of 2160 total FLTs (~8%).

Error Number
8 (Fixed as of 05/30/2013)
Error Category
Incorrect nutrient data
Version Affected
ASA24-2011, ASA24-Kids-2012
Short Desciprtion
USDA has posted a corrected caffeine value for Monster Energy Drink.
Identified Date
May 2013
Corrective ASA24 Action
Nutrient data for caffeine were corrected in the ASA24 database. Recalls were reprocessed as of 6/19/2013.
Suggested Researcher Action
If output files were requested and downloaded prior to 6/19/2013, Researchers should request analysis files again using the Researcher Web site.

Error Number
7 (Fixed as of 05/30/2013)
Error Category
Missing nutrient data
Version Affected
ASA24-2011, ASA24-Kids-2012
Short Description
Missing portion size questions for rye bread in vegetarian sandwiches may have resulted in missing nutrient data when vegetarian sandwiches were reported.
Identified Date
March 2013
Corrective ASA24 Action
Researchers should use the following steps to identify any missing data and make corrections to all recalls collected on or prior to 05/30/2013 using the following steps:
Suggested Researcher Action
Researchers should use the following steps to identify any missing data and make corrections to all recalls collected on or prior to 5/30/2013 using the following steps:
  1. Review the MySelections output file to locate foods for which the food list term matches any of the terms included in the tab 'VEG FLTs' in ASA24CorrectionVegSandwich (XLSX, 9 KB) (CSV, 1 KB).
  2. For the FLTs identified in step 1, locate FLTs where SandBread = 'Rye bread.'
  3. Multiply the integer of the response to VSandTotalPortion for each affected intake and food number by the nutrient/component values on tab 'Rye bread values' in ASA24CorrectionVegSandwich.xlsx.
  4. Replace the missing nutrients for the selected intake/food number with the values calculated in step 2 above.
  5. Correct the TN/TNMYPHEI total files by summing the values for each nutrient/component for the affected UserNames/recalls.

Error Number
6 (Fixed as of 03/08/2013)
Error Category
MPED Corrections
Version Affected
ASA24-2011, ASA24-Kids-2012
Short Description
USDA has identified errors in the MyPyramid Equivalents Database (MPED) for three pizza food codes.
Identified Date
February 2013
Corrective ASA24 Action
Values for two MyPyramid Equivalent groups have been updated: G_TOTAL (total grains) and G_NWL (non-whole/refined grains). The three food codes are: 58106210 Pizza, cheese, NS as to type of crust; 58106220 Pizza, cheese, thin crust; 58106230 Pizza, cheese, thick crust. Recalls were reprocessed as of 03/15/2013.
Suggested Researcher Action
If output files were requested and downloaded prior to 03/16/2013, Researchers should request analysis files again using the Researcher Web site.

Error Number
5 (Fixed as of 03/08/2013)
Error Category
Missing nutrient data
Version Affected
ASA24-2011, ASA24-Kids-2012
Short Description
Errors in portion data for various foods
Identified Date
December 2012
Corrective ASA24 Action
Portion data were corrected in the ASA24 database. Recalls were reprocessed as of 03/15/2013.
Suggested Researcher Action
If output files were requested and downloaded prior to 03/16/2013, Researchers should request analysis files again.

Error Number
4 (Fixed as of 03/08/2013)
Error Category
Missing nutrient data
Version Affected
ASA24-2011, ASA24-Kids-2012
Short Description
Portion questions were missing for some salami sandwiches.
Identified Date
December 2012
Corrective ASA24 Action
Portion data were corrected in the ASA24 database.
Suggested Researcher Action
Researchers should use the following steps to identify any missing data and make corrections to all recalls collected on or prior to 03/08/2013 using the following steps:

The question pathway for sandwiches containing salami stopped prematurely before the portion question was asked; this resulted in in a missing portion code. These rows display a FoodCode, but have '0' for HowMany and '9' for PortionCode. Nutrient and food group values will be missing. Follow these steps to correct:

  1. Review the MySelections output file to locate instances for which the Response field for the Variable OthSandMeatKind is "Salami (regular)".
  2. For the selected FoodNumber, multiply the response to OthSandPortion by the HowMany and all nutrient and component values in the ASA24CorrectionSalami.xlsx[BM2] file. The portion in the ASA24CorrectionSalami file (XLSX, 10 KB) (CSV, 2 KB) is the default (Quantity Not Specified) amount from FNDDS.
  3. Locate the corresponding row with missing nutrient/component values in the INF or INFMYPHEI file by matching UserName, IntakeDate, and FoodNumber.
  4. For the selected FoodNumber, replace the HowMany and all nutrient and component values with the values calculated in number 4 above. The PortionCode may be replaced with the PortionCode in the ASA24CorrectionSalami file.
  5. Correct the TN/TNMYPHEI total files by summing the values for each nutrient/component for the affected UserNames/recalls.

Error Number
3 (Fixed as of 12/05/2012)
Error Category
MyPyramid Equivalents Database Corrections
Version Affected
ASA24-2011, ASA24-Kids-2012
Short Description
Coconut products are no longer counted in the Nuts and Seeds group by USDA.
Identified Date
September 2012
Corrective ASA24 Action
Three MPE values have been updated in the ASA24 database: M_NUTSD (Nuts and Seeds, DISCFAT_OIL (Discretionary oil), and DISCFAT_SOL (Discretionary solid fat). Recalls were reprocessed as of 12/20/2012.
Suggested Researcher Action
If output files were requested and downloaded prior to 12/21/2012, Researchers should request analysis files again.

Error Number
2 (Fixed as of 12/20/2012)
Error Category
MyPyramid Equivalents Database Corrections
Version Affected
ASA24-2011, ASA24-Kids-2012
Short Description
USDA has identified errors in the MyPyramid Equivalents Database Addendum for two water food codes.
Identified Date
November 2012
Corrective ASA24 Action
Values for two MyPyramid Equivalents groups have been updated: A_BEV (Alcoholic beverages) and ADD_SUG (Added sugars) for two food codes. The food codes affected were 94100300 (Water, fruit flavored, sweetened, with high fructose corn syrup and low calorie sweetener) and 94210200 (Glaceau water). Recalls were reprocessed as of 12/20/2012.
Suggested Researcher Action
If output files were requested and downloaded prior to 12/21/2012, Researchers should request analysis files again.

Error Number
1 (Fixed as of 11/28/2012)
Error Category
Supplement calculations
Version Affected
ASA24-2011, ASA24-Kids-2012
Short Description
Incorrect conversion factors affected the calculation of several supplement values.
Identified Date
November 2012
Corrective ASA24 Action
Conversion factors were corrected.. Recalls were reprocessed as of 12/20/2012.
Suggested Researcher Action
If output files were requested and downloaded prior to 12/21/2012, Researchers should request analysis files again.

[Return to top]

ASA24™ is a trademark of HHS.

Last Modified: 11 Apr 2014