SKBIO¶
Table Description: Skin Biopsy
Detailed notes for this table are included below.
View Source CRFs¶
1.0 CRFs: Click on any PAG_NAME link below to be taken to the CRF used in the PPMI 1.0 Study.
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 |
ITM_TYPE_1.0 |
|---|---|---|---|
SKBIOCMP |
Was biopsy completed |
BOOLEAN |
CHAR |
NOSKBIOCMP |
Reason skin biopsy not completed |
NUMBER |
|
NOSKBIOCMPCM |
Skin biopsy attempted unsuccessfully or not completed for other reason comment |
TEXT |
|
ANSTHADM |
Was anesthesia administered |
NUMBER |
CHAR |
ANSTHADMCM |
Anesthesia not administered comment |
TEXT |
|
FIXSPEC |
Was a formalin-fixed specimen collected |
BOOLEAN |
|
FIXSKBSID |
Which side of body was the formalin-fixed skin biopsy performed on |
NUMBER |
|
FIXWNDCLS |
Type of wound closure used for formalin-fixed skin biopsy |
NUMBER |
|
FIXWNDCLSCM |
Other wound closure for formalin-fixed skin biopsy, specify |
TEXT |
|
FIXCOLTM |
Time formalin-fixed skin biopsy collected |
TIME |
|
BIOFIXTM |
Time biopsy specimen placed in formalin fixation |
TIME |
|
BIOFIXLOT |
Formalin lot number |
TEXT |
|
FRZSPEC |
Was a frozen specimen collected |
BOOLEAN |
|
FRZSKBSID |
Which side of body was the frozen skin biopsy performed on |
NUMBER |
|
FRZWNDCLS |
Type of wound closure used for frozen skin biopsy |
NUMBER |
|
FRZWNDCLSCM |
Other wound closure for frozen skin biopsy, specify |
TEXT |
|
FRZCOLTM |
Time frozen skin biopsy collected |
TIME |
|
BIOFRZTM |
Time biopsy specimen frozen |
TIME |
|
BIOFRZTMP |
Frozen/Freezer Temperature (Celsius) |
NUMBER |
2.0 Code Book¶
ITM_NAME |
CODE |
DECODE_2.0 |
DECODE_1.0 |
|---|---|---|---|
ANSTHADM |
0 |
No |
No |
ANSTHADM |
1 |
Yes |
Yes |
ANSTHADM |
2 |
Other anesthetic |
|
FIXSKBSID |
1 |
Right |
|
FIXSKBSID |
2 |
Left |
|
FIXSPEC |
0 |
No |
|
FIXSPEC |
1 |
Yes |
|
FIXWNDCLS |
1 |
Dressing only |
|
FIXWNDCLS |
2 |
Steri strips |
|
FIXWNDCLS |
3 |
Suture |
|
FIXWNDCLS |
4 |
Other |
|
FRZSKBSID |
1 |
Right |
|
FRZSKBSID |
2 |
Left |
|
FRZSPEC |
0 |
No |
|
FRZSPEC |
1 |
Yes |
|
FRZWNDCLS |
1 |
Dressing only |
|
FRZWNDCLS |
2 |
Steri strips |
|
FRZWNDCLS |
3 |
Suture |
|
FRZWNDCLS |
4 |
Other |
|
NOSKBIOCMP |
1 |
Participant declined biopsy |
|
NOSKBIOCMP |
2 |
Procedure attempted unsuccessfully |
|
NOSKBIOCMP |
3 |
Other |
|
SKBIOCMP |
0 |
No |
No |
SKBIOCMP |
1 |
Yes |
Yes |
Missing Columns¶
ITM_NAME |
DSCR_1.0 |
|---|---|
BIOCMPLC |
Complications during the biopsy |
BIOCOLTM |
Time biopsy collected |
BIOFRGTM |
Time biopsy specimen was refrigerated |
COMM |
Comments |
SBIOLCCM |
Location of biopsy - other, specify |
SHIPDT |
Date shipped |
SKBIOLOC |
Location of skin biopsy |
SKBIOSID |
Which side of body was biopsy performed |
WNDCLSCM |
Other wound closure, specify |
WOUNDCLS |
Type of wound closure |
Details¶
Amendment Two
As of February 2021, significant changes were made to the SKBIO table to account for Amendment 2. The original SKBIO CRF had questions that were non-specific about the type of Skin Biopsy, because only a formalin-fixed biopsy type was allowed. As of Amendment 2, formalin-fixed and frozen skin biopsies are both allowed, so new questions have been added that are type-specific.
Because the previous variables in the early version of this form are equivalent to the formalin-fixed variables of the amendment 2 version, there was a mapping done so that old variables can be harmonized with the new variables. See the table below for more description about how the old and new variables relate.
Previous ITM_NAME |
Previous Item Description |
New ITM_NAME |
New Item Description |
|---|---|---|---|
SKBIOCMP |
Was skin biopsy collected? |
FIXSPEC |
Was a formalin-fixed specimen collected |
SKBIOSID |
On which side of the body was the cervical paravertebral biopsy performed? |
FIXSKBSID |
Which side of body was the formalin-fixed skin biopsy performed on |
WOUNDCLS |
What type of wound closure was used? |
FIXWNDCLS |
Type of wound closure used for formalin-fixed skin biopsy |
WNDCLSCM |
If other, please specify |
FIXWNDCLSCM |
Other wound closure for formalin-fixed skin biopsy, specify |
BIOCOLTM |
Time that biopsy was collected |
FIXCOLTM |
Time formalin-fixed skin biopsy collected |
SKBIOCMP will be used to derive FIXSPEC.