PDDXHIST¶

Table Description: PD Diagnosis History

Detailed notes for this table are included below.

View Source CRFs¶

2.0 CRFs: Click on any PAG_NAME link below to be taken to a screenshot of how this eCRF is currently implemented in the PPMI 2.0 Study.

PDDXHIST

2.0 Data Dictionary¶

Table Constraints: PATNO, VISIT_ID

ITM_NAME	DSCR	ITM_TYPE
SXDT	Date of Symptom	DATE
PDDXDT	Date of Parkinson’s disease diagnosis	DATE
DXTREMOR	Resting Tremor present at diagnosis?	NUMBER
DXRIGID	Rigidity present at diagnosis?	NUMBER
DXBRADY	Bradykinesia present at diagnosis?	NUMBER
DXPOSINS	Postural instability present at dx?	NUMBER
DXOTHSX	Other symptom present at diagnosis?	BOOLEAN
DXOTHCM	Other symptoms comment	TEXT
DOMSIDE	Side predominantly affected at onset	NUMBER

2.0 Code Book¶

ITM_NAME	CODE	DECODE_2.0
DOMSIDE	1	Left
DOMSIDE	2	Right
DOMSIDE	3	Symmetric
DOMSIDE	4	Unknown
DXBRADY	0	No
DXBRADY	1	Yes
DXBRADY	2	Unknown
DXOTHSX	0	No
DXOTHSX	1	Yes
DXPOSINS	0	No
DXPOSINS	1	Yes
DXPOSINS	2	Unknown
DXRIGID	0	No
DXRIGID	1	Yes
DXRIGID	2	Unknown
DXTREMOR	0	No
DXTREMOR	1	Yes
DXTREMOR	2	Unknown

Details¶

This CRF is only collected at Screening for PD participants. It is very similar to the CRF PDFEAT (PD Features) that was collected in PPMI 1.0. This information was moved to this new table in PPMI 2.0 for two reasons:

The name of the CRF was changed signifigantly such that the old MOD_NAME no longer made sense.

A new CRF was added in 2.0 called Features of PD which has the MOD_NAME FEATPD which is too similar to PDFEAT.

SXDT

This is the only variable that was not moved from PDFEAT. This is because in 1.0 this information was collected in two separate variables: SXMO (Date of Symptom (Month)) and SXYEAR (Date of Symptom (Year)).