Differences

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--- documentation:next_cdm:days_supply [2016/11/01 17:40] – vojtechhuser
+++ documentation:next_cdm:days_supply [2017/07/06 19:18] (current) – clairblacketer
@@ Line 1: / Line 1: @@
 ===== End of a drug exposure =====
+=== Proposals are now tracked as github issues ===
+[[https://github.com/OHDSI/CommonDataModel/issues/71|link to issue in github]]
   * Requester: Klaus Bonadt, Christian Reich, Patrick Ryan
@@ Line 7: / Line 9: @@
 ==== Proposal ====
 Relevant table: http://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:drug_exposure
-If the days_supply and the drug_exposure_end_date fields essentially designate the same thing they are therefore duplicates of the same information and create the danger of of inconsistency. One of them could be dropped.
-Alternatively, we could split them into two different meanings:
 ^Field^Required^Type^Description^
-|drug_exposure_end_date|Yes or No|date|The end date for the current instance of Drug utilization. Depending on different sources, it could be a known or an inferred date and denotes the last day at which the patient was still exposed to drug.|
+|drug_exposure_end_date|Yes|date|The end date for the current instance of Drug utilization. Depending on different sources, it could be a known or an inferred date and denotes the last day at which the patient was still exposed to drug.|
 |days_supply|No|integer|The number of days of supply of the medication as prescribed. This reflects the intention of the provider for the length of exposure.|
-|verbatim_end_date|No|date|The known end date of a drug exposure.|
+|verbatim_end_date|No|date|The known end date of a drug exposure as provided by the source.|
-The verbatim_end_dat field is only necessary if we decide to make the drug_exposure_end_date mandatory. In cases where no good data are available to fill that end_date, teh ETL will have to take a guess, and that may not satisfy some algorithms for dose calculation.
+The verbatim_end_dat field is only necessary as the drug_exposure_end_date becomes mandatory, and might be (wrongly) inferred. In cases where no good data are available to fill that end_date, the ETL will have to take a guess, and that may not satisfy some algorithms for dose calculation.
 == Conventions ==