Caffeine History

Caffeine History - Variable Definition Table:

Field Name	Description	Field Values	Variable Summary
caff_drinks_ever_used_regularly	Caffeine Exposure	No Unknown Yes	Indicator of whether subject has evere used caffeinated drinks
caff_drinks_current_use	Caffeine Exposure	No Unknown Yes	Current regular caffeinated drinks use indicator

Tables that Reference this Variable:

Caffeine_history

Data Type Information:

Field Name	Type	Mode
caff_drinks_ever_used_regularly	ENUMERATION	NULLABLE
caff_drinks_current_use	ENUMERATION	NULLABLE

Curation Notations:

Query Definition

Caffeine_history.caff_drinks_ever_used_regularly is not null AND Caffeine_history.caff_drinks_ever_used_regularly != 'Unknown'

Clinical Data Forms Queried (available as a BigQuery Table and csv File)

Caffeine_history

Criteria

caff_drinks_ever_used_regularly is not null

caff_drinks_ever_used_regularly != 'Unknown'

AND

Query

SELECT left(participant_id, 2) Cohort, count(distinct participant_id) Count from `amp-pd-research.2021_v2_5release_0510.Caffeine_history` WHERE caff_drinks_ever_used_regularly is not null AND caff_drinks_ever_used_regularly != 'Unknown' GROUP BY Cohort ORDER BY Cohort

Caffeine History