Issue # and location

Themis issue #128

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

NA

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.

NOTE - while visit_end_datetime is not required, visit_end_date is. This convention applies to the datetime field only.

Date of ratification/published

NA

Downstream implications

NA

NA

NA

Tags: dates datetime