Page Last Updated: October 10, 2025
Visit Information🔗
Table Name:
par_visit_data Construct:
Derived Visit Information
This data has known issues - see details.
Details🔗
Visit information contains all participant visit data, including:
General Visit Information🔗
- Label, Stage, Date, Project, and Site
- If the visit was missed and reason
- Withdrawal information (if the participant withdrew from the study, the reason, and date)
- Protocol violation information (if there was a protocol exception and the date)
Substance Use Flags🔗
Visit information also includes substance use flags, which are single summary variables that indicate substance use status (yes/no) based on any positive reports from the following instruments:
- The Timeline Follow Back (TLFB) (self-reported use)
- Health V2- Infancy when options 1 (Neonatal Opioid Withdrawal Syndrome) and/or 5 (Fetal Alcohol Syndrome) were selected for field
007(self-reported use) - USDTL urine toxicology results (note: Nail toxicology results were not used in the creation of the substance use flags)
Cohort & Caregiver Types🔗
Cohort information includes cohort subtype and caregiver type for each participant. Possible values include:
- HBCD Main Child - Postnatal Recruitment
- HBCD Main Child - Type {A-F}
- HBCD Multiple Birth - {Main Child | Postnatal Recruitment | Sibling}
- HBCD Multiple Birth - Type {A-F}
| Type A | Temporary Alternative Caregiver |
| Type B | Change in Primary Caregiver (Placement Only) Without Change in Legal Custody (But Birth Parent Unable to Complete Visit) |
| Type C | Change in Joint Custody |
| Type D | Child Removed From Birth Parent and Placed in Foster Care (Change in Placement) |
| Type E | Change in Legal Custody and Placement (e.g. adoption) |
| Type F | Original Consented Parent |