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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 ===== ===== 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   * Requester: Klaus Bonadt, Christian Reich, Patrick Ryan
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 ==== Proposal ==== ==== Proposal ====
 Relevant table: http://​www.ohdsi.org/​web/​wiki/​doku.php?​id=documentation:​cdm:​drug_exposure 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^ ^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.| |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 == == Conventions ==
documentation/next_cdm/days_supply.1478022041.txt.gz ยท Last modified: 2016/11/01 17:40 by vojtechhuser