H and Y (see MDS-UPDRS Part III)

Query Definition
MDS_UPDRS_Part_III.upd2hy_hoehn_and_yahr_stage is not null

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

Criteria
upd2hy_hoehn_and_yahr_stage is not null

Query
SELECT left(participant_id, 2) Cohort, count(distinct participant_id) Count from `amp-pd-research.2021_v2_5release_0510.MDS_UPDRS_Part_III` WHERE upd2hy_hoehn_and_yahr_stage is not null GROUP BY Cohort ORDER BY Cohort