# Why is the category not available for injcausfall in Year 2015?

**URL:** <https://forum.ipums.org/t/why-is-the-category-not-available-for-injcausfall-in-year-2015/1772>\
**Category:** HEALTH SURVEYS\
**Created:** [June 6, 2017, 11:48pm UTC](https://forum.ipums.org/t/why-is-the-category-not-available-for-injcausfall-in-year-2015/1772 "2017-06-06T23:48:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![iiyl\_ii](https://avatars.discourse-cdn.com/v4/letter/i/ecccb3/32.png) [@iiyl\_ii](https://forum.ipums.org/u/iiyl_ii)\
**Post date:** [June 6, 2017, 11:48pm UTC](https://forum.ipums.org/t/why-is-the-category-not-available-for-injcausfall-in-year-2015/1772/1 "2017-06-06T23:48:00Z")

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How do I know how many individuals had no injuries by fall at that time period of 3 months?

If I can’t find out, how do I account for that missing response in my data?

Thank you.

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**Author:** ![grover](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.ipums.org/grover/32/5_2.png) [@grover](https://forum.ipums.org/u/grover)\
**Post date:** [June 7, 2017, 8:53pm UTC](https://forum.ipums.org/t/why-is-the-category-not-available-for-injcausfall-in-year-2015/1772/2 "2017-06-07T20:53:00Z")

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Congratulations! You have found a data error in IPUMS NHIS! The IPUMS Health Surveys team has identified the source of this error and is now working on a fix. They estimate that the corrected data will become available with the release of the 2016 sample, expected by the end of July. It is possible to create this variable based on the injury records from a hierarchical extract of the data. In the meantime, as is standard IPUMS policy, since you have identified a significant data error you are now entitled to a shiny [new mug](https://usa.ipums.org/usa/mug.shtml)! Please email [ipums@umn.edu](mailto:ipums@umn.edu) with a shipping address so we can mail you your coveted prize!

Thank you for helping us maintain these important data resources.