# what variable can be used for multiple analyses on each paramcd

**URL:** <https://forum.certara.com/t/what-variable-can-be-used-for-multiple-analyses-on-each-paramcd/1708>\
**Category:** ADaM\
**Created:** [June 8, 2021, 2:53am UTC](https://forum.certara.com/t/what-variable-can-be-used-for-multiple-analyses-on-each-paramcd/1708 "2021-06-08T02:53:04Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![scshaw](https://avatars.discourse-cdn.com/v4/letter/s/e480ec/32.png) [@scshaw](https://forum.certara.com/u/scshaw)\
**Post date:** [June 8, 2021, 2:53am UTC](https://forum.certara.com/t/what-variable-can-be-used-for-multiple-analyses-on-each-paramcd/1708/1 "2021-06-08T02:53:04Z")

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I have the following question, each subject had multiple paramcd/param assessments at multiple visits, actual visit window were assigned, when there were multiple visits in a visit window, we would have 2 different analyses, last date, or worst case. I already had paramcd/param, avisitn/avisit, aval/avalc, basetype, dtype in the dataset, how to hold 2 different results, add new row ? add new column ? what name can I use ? not parcat1 or avalcat1 or paramtyp.

thanks