Eligibility criteria

A research assistant called to administer an eligibility screening and schedule a study office visit and a phone questionnaire. This questionnaire was either scheduled to be administered during the office visit or by phone.
During the study office visit the study participant was asked to provide a blood sample, urine sample, and body measurements. The study participant may have completed the questionnaire before or after the study office visit.
If the study participant was a child or adolescent, they also completed a neurobehavioral assessment, which includes a series of learning and memory games.

Basic information about the study:

Enrollment: 83 % of the enrollment goal of 1000 adults and 300 children was reached. Please see this full progress report for more information about the overall Multi-site study:

Health Markers: The researchers collected participant data on lipids, kidney function, liver function, thyroid and sex hormones, glucose and insulin parameters, markers of immune function, as well as neurobehavioral outcomes in children.

Eligibility criteria for the study:

Age limit: Children needed to be age 4 or older but there was no upper age limit for adults.
Residence: Must currently live in, or previously lived in, an area that was impacted by PFAS water contamination in El Paso County, CO.
Employment: Unfortunately, those who were ever employed as a firefighter, ever participated in fire training exercises using Aqueous Film-Forming Foam Concentrates (AFFF), or were ever employed in industrial facilities that used PFAS chemicals in the manufacturing process were not eligible.