CEECR Total Specimens as of July 15, 2025

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.

Explore our wristband and Biospecimen resources:

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