OHDSI / Themis

Repository for OMOP CDM conventions as defined by THEMIS. These can be reference lists of concepts, pieces of standardized code for data generation or quality certification, and debates.

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Missing visit end datetime

CDM or THEMIS convention?

THEMIS

Table or Field level?

Field

Is this a general convention?

Summary of issues

We have visit start datetime data at the source, but not end datetime. Is it ok to leave visit_end_datetime null when visit_start_datetime is populated?

Summary of answer

Clarified during Friday call. See point Below:

ok to leave visit_end_datetime null when visit_start_datetime is populated

Other comments/notes

Please use this section to add any other relevant notes or comments. (i.e. if links are not working, something is out of date or deprecated)

Issue # and location

Issue summary

We have visit start datetime data at the source, but not end datetime. Is it ok to leave visit_end_datetime null when visit_start_datetime is populated?

Convention type

Table

CDM table

visit_occurrence

CDM field

visit_end_datetime

Links to issue discussion

Provenance of data

General

The ratified convention

visit_end_datetime is not a required field. Therefore, it is ok to leave visit_end_datetime null when visit_start_datetime is populated.

OHDSI / Themis