Blood
7,832 (4 cohorts)
Saliva / Buccal
9,242 (4 cohorts)
Wristbands
13,812 (3 cohorts)
Urine
8,523 (3 cohorts)
Other samples collected by only one Cohort (STRIVE): water sample, hand wipe, soil (only collected for participants with home visits), floor wipe (house dust).
Goals for the Wristband and Biospecimens Working Group
- To investigate wristband and Biospecimen protocols across the Consortium
- To identify opportunities to align
- To establish a plan for cross-Cohort collaboration using wristband samples and/or biospecimens
- To troubleshoot barriers to sample collection and retrieval
- To provide guidance to Cohort members interested in wristbands or other exposure assessment tools
Wristbands for Exposure Assessment
- Rubber wristbands have to be “cleaned” in a lab before they are worn by participants. This process can be done using chemicals called solvents or through a heating process.
- Cleaning the wristbands before participants wear them is an important step in making sure that only the exposures encountered by the participant are captured.
- Participants will wear these wristbands for about a week before returning them to the lab.
- The lab will then test the wristbands to see what they picked up from the participant’s environment during a week of wear.




