Your community was chosen to provide a range of air pollution profiles across Southern California, to see how air quality affects health. There were 16 communities altogether.
Participant Groups (Cohorts)
Cohort E: Participants recruited in 2002/2003. High School graduation year in 2014 and 2015.
Cohort A: Participants recruited in 1992 and most graduated from high school in 1995.
Cohort B: Participants recruited in 1992 and most graduated from high school in 1998.
Cohort C: Participants recruited in 1992 and most graduated from high school in 2001.
Cohort D: Participants recruited in 1995 and most graduated from high school in 2004.