Diagnosis and Change in Diagnosis
Diagnosis and Change in Diagnosis - Variable Definition Table:
|diagnosis||The diagnosis is an opportunity for the site investigator to give their opinion on a participant's most likely clinical diagnosis, regardless of cohort. The diagnosis may change over time because the site investigator may update the diagnosis at every longitudinal visit based on their opinion.||
No PD Nor Other
Prodromal motor PD
No PD no Other
Multiple System Atrophy
Essential Tremor Progressive
Demential with Lewy
|most_recent_diagnosis||Most recent diagnosis|
|change_in_diagnosis||Change in diagnosis indicator||Yes
|change_in_diagnosis_date||Change in diagnosis date||YYYY-MM format|
|date_of_pd_diagnosis||Date of Parkinson's disease diagnosis||YYYY-MM format|
|age_at_diagnosis||Age at Parkinson's disease diagnosis||###|
Tables that Reference this Variable:
- PD Medical History
Data Type Information:
- Appropriate Diagnosis (APPRDX) in PPMI and BioFIND were used as Study Arm and Most Likely Primary Diagnosis (PRIMDIAG) was used as Diagnosis. In PDBP Case/Control were used to identify three Study Arm values.
- Diagnosis in PDBP were cleaned and standardized as suggested by CDH group.
- Blank diagnosis values were filled with the value from the previous visit based on the participant_id. When a change in diagnosis occurs between visits (PDBP), the new diagnosis was associated with whichever visit is closest to the change date. The closest visit may be before the date of change logged in the system. These updates were completed manually.