FEATPD¶
Table Description: Features of Parkinsonism
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.
2.0 Data Dictionary¶
Table Constraints: PATNO, VISIT_ID
ITM_NAME |
DSCR |
ITM_TYPE |
|---|---|---|
FEATBRADY |
Bradykinesia is present and typical for parkinsonism |
NUMBER |
FEATRIGID |
Rigidity is present and typical for parkinsonism |
NUMBER |
FEATTREMOR |
Rest tremor is present and typical for parkinsonism |
NUMBER |
FEATPOSINS |
Postural disturbance is present and typical for parkinsonism |
NUMBER |
PSGLVL |
Confidence abnormalities consistent with a neurodegenerative parkinsonian syndrome (PS) |
NUMBER |
2.0 Code Book¶
ITM_NAME |
CODE |
DECODE_2.0 |
|---|---|---|
FEATBRADY |
0 |
No |
FEATBRADY |
1 |
Yes |
FEATBRADY |
2 |
Uncertain |
FEATPOSINS |
0 |
No |
FEATPOSINS |
1 |
Yes |
FEATPOSINS |
2 |
Uncertain |
FEATRIGID |
0 |
No |
FEATRIGID |
1 |
Yes |
FEATRIGID |
2 |
Uncertain |
FEATTREMOR |
0 |
No |
FEATTREMOR |
1 |
Yes |
FEATTREMOR |
2 |
Uncertain |
PSGLVL |
1 |
Abnormalities that are signs of PS (90% - 100%) |
PSGLVL |
2 |
Abnormalities that are likely signs of PS (70% - 89%) |
PSGLVL |
3 |
Abnormalities that may be signs of PS (50% - 69%) |
PSGLVL |
4 |
Non-specific abnormalities (25% - 49%) |
PSGLVL |
5 |
No evidence of parkinsonian signs (0%- 24%) |
Details¶
This CRF was added in PPMI 2.0 and is included in Baseline and all annual visits for PD and Prodromal participants. While it has no direct equivalent in PPMI 1.0, the questions related to the 4 cardinal features of PD have been moved to this table from the now deprecated DIAGFEAT CRF.
These overlapping cardinal variables have also been given new names because the questions are presented with signifigantly more clarifying details than what was in DIAGFEAT, and because the questions have been changed to include Parkinsonsim rather than just PD. See below for a map between the 1.0 PPMI versions of these questions:
1.0_MOD_NAME |
1.0_ITM_NAME |
1.0_DSC |
2.0_MOD_NAME |
2.0_ITM_NAME |
2.0_DSCR |
|---|---|---|---|---|---|
DIAGFEAT |
DFRTREMP |
Resting tremor present |
FEATPD |
FEATTREMOR |
Rest tremor is present and typical for parkinsonism |
DIAGFEAT |
DFRIGIDP |
Rigidity is present and typical for PD |
FEATPD |
FEATRIGID |
Rigidity is present and typical for parkinsonism |
DIAGFEAT |
DFBRADYP |
Bradykinesia present and typical for PD |
FEATPD |
FEATBRADY |
Bradykinesia is present and typical for parkinsonism |
DIAGFEAT |
DFPGDIST |
Postural and gait dist are typical of PD |
FEATPD |
FEATPOSINS |
Postural disturbance is present and typical for parkinsonism |
PSGLVL
This variable was not included in DIAGFEAT or any PPMI 1.0 form. While it is similar to PSLVL and PSLVL2 that appeared in CLINDX, PRODDIAG, and DIAGQUES (all of which have been deprecated), PSGLVL asks about any abnormalities related to a neurodegenerative parkinsonian syndrome and PSLVL asked about specifically motor symptoms related a parkinsonian syndrome.