** Group Leader:** Asha Mahesh

**[[projects:workgroups:themis:focusgroup3members|Members]]**

**THEMIS Bi-weekly Meeting (Skype Meeting)**
Occurs every other Tuesday from 10:00 AM to 11:00 AM.
 
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Conference ID: 88328055

**Meeting Minutes:**

Meeting notes from Nov 29th:

  - Team discussed several items on the issue list
  - Schedule follow up meeting for further discussion. Observe the efficiency of remote/webex meeting and make a decision to meet in-person as needed
  - Please review the spreadsheet and socialize discussed topics on OHDSI forums to gather input



^Issue^Options^
|**Generic**||
|Low quality records, e.g. CPRD "researchable patient" flag|Kick out/create variable for CDM WG|
|Data inclusion|Create summary guideline, report % loss|
|Start Date before Observation Period|History of/First date of Observation Period|
|End Date - same day issue|Special times (0.00 and 23.59)/Blank|
|Socioeconomic, marital, language Concepts|Create conventions for Concepts|
|Flavors of 0|Document|
|Source Value combo code+vocab|Concatenate/Leave blank and use Source Concept|
|Source Value combo more than one|Concatenate/Leave blank and use Source Concept|
|Source Value combo code+name|Concatenate/Leave blank and use Source Concept|
|Source Concepts for local variables|Abolish SOURCE_TO_CONCEPT_MAP and develop guidelines for creating Source Concepts >2B|
|Source Concept=0 for Achilles|make not nullable for OMOP CDM|
|Negative integers|Develop guideline|
|Invalid numbers|Develop guidelines|
|**CONDITION**||
|Concepts privacy issues|Data deleted for privacy in record/Mark deletions in metadata/Establish Black List/Remove patients entirely/Set to 0|
|Convert data from surveys?|Keep in Observation/Add, with explicit Type Concept|
|Dedup?|Pick the highest Type Concept|
|Clean up Type Concepts|Keep precedence, drop visit type|
|Derive pregnancies?|Introduce|
|Visit_occurrence_id mandatory?| |
|ICD Source value: With or without dots|Irrelevant with mandatory Source Concepts|
|**DRUG**||
|Duplicates for same day|Don't dedup|
|End date guessing for prescribed, administered, mail-ordered| |
|Sig|Clean up and develop standard|
|Contradiction between Sig, end date, days supply, amount|ETLer's problem|
|Dose Era logic| |
|Patient reported drugs|Use|
|Stop reason|Consider abolishing after polling|
|Link between orders, administration, dispensing and filling|Publish guidelines|
|HCPCS and NDC on same line|Consider heuristic for picking|
|J code units|Consider placing in quantity field|
|NDC9 to 11 mapping contradictions|Consider polling and vocab fix|
|NDC non-unique Concepts over time|Create Black List|