Page Last Updated: June 1, 2026
Version: BR15.0🔗
Release date: 2025-05-30
Features/General🔗
- Parquet files for the BHV Shadow Matrices generated
- BrainSwipes data included
- Set blank entries in tsv files to 'Null' in the corresponding Parquet files for all BHV and BioSpecimen files
- Removed gender and sex related fields for REDCap Demographics (
sed_bm_demo)
MRI/EEG/BioSensors🔗
MRI/EEG🔗
Changed label for 'Gestational age' in scans/sessions.tsv from 'age_gestational' to 'age_adjusted'
BrainSwipes🔗
- Updated and revised feedback data included
- Filtered non valid sessions from BrainSwipes
- Adjusted 'run_id' format to '01', '02', ... in parquet files to align with tsv files (BrainSwipes re-run)
BioSpecimens🔗
- Added 'bm' (Birth Mother) as 'source' to all BioSpecimen fields
- Removed invalid sessions from BioSpecimen files
- Transformed '-999' code to corresponding note ("Please refer to corresponding categorical field for more details") in Shadow Matrix
- Removed 'Nail Weight' field from 'Nail Type' file (Messy and not consistent in format)
- Removed 'nail_type' in the 'bio_biosample_nails_results' (Redundant and did not provide any info)
- Removed 'visit_timepoint' fields as levels did not align with input in fields
- Removed text from 'nail weight' and push units (mg) to 'units' metadata
- Changed data type for timestamps fields (BioSpecimens)
- Changed incorrect metadata entry on Data Dictionary for 'Urine' field 'bio_c_crs_u_cat'
Basic Demographics🔗
Forced insert for visit missing on 'Basic Demographics' (sed_basic_demographics)
Data Dictionary🔗
- Checked 'Integer' with decimal values. Converted to 'double' where necessary
- Changed 'type_data' for TLFB fields from 'text' to 'numeric'
- Changed 'type_var' for selected BrainSwipes from 'count' to 'administrative'
- Changed 'type_data' for selected BrainSwipes from 'float' to 'double'
- Set 'type_level' for selected BioSpecimen (n=5), Basic Demographics (n=3) and Visit Data (n=17) fields
- Reviewed and adapted invalid dates: Changed format to align with expected format, including for timestamp fields
- Changed date to timestamp in data_type metafield (end format = YYYY-MM-DD HH:mm:ss) for biospecimen.
- Removed BrainSwipes
collection_platformandloris_requiredmetadata fields.
Shadow Matrices🔗
- Added note to Shadow Matrices for GAA blanks at V02/V03
- Pushed note on 'Height/Weight/Head Circumference to Shadow Matrix
- Pushed note on '-999' code for BioSpecimens to Shadow Matrix
Database/Scoring:🔗
- SU flags on TLFB based on TRUE/FALSE (instead of Yes/No)
- Adjustments made to GAA (Gestational Age at Administration) for BioSpecimens and BHV tables
- Update 'PTSD/Acute Stress' scoring to include prorated scoring scheme
- Removed duplicate instrument name in fieldname (foodins_category)
- Removed score fields and restored values for 'SPM-2'
- Changed invalid date entry on one date:
2023-0915to2023-09-15
Filters🔗
- Removed 'nail_weight', 'nail_type' and 'visit_timepoint' fields from BioSpecimen fields (see above)
- Removed score fields for 'SPM-2'
- Removed gender and sex related fields for REDCap Demographics (
sed_bm_demo) - Excluded Z-score fields for 'Height/Weight/Head Circumference' (
ph_ch_anthro)
Counts🔗
- Total number of participants queried from DB: 1,426
- Total number of visits
- All: 2,207
- V01: 1,426
- V02: 660
- V03: 121
- All: 2,207
- By Sex (V02/V03 visit done):
- Female: 328
- Male: 338
BR15 Resolved Known Issues🔗
⚠️ BioSpecimens: Transform '-999'🔗
The -999 code needed to be transformed to a note in shadow matrices. Relevant shadow matrices include: bio_biosample_nails_results, bio_biosample_nails_type, and bio_biosample_urine.
⚠️ Duplicate Rows for BioSpecimens🔗
Flagged cases had two visits (V01 & V02). Flagged duplicates labeled as 'ses-V02'. Team verified with MSI on de-identified files to confirm if both visits are incorrectly labeled as 'ses-V02' during de-identification.