Olmsted County Birth Cohort and Southeast Minnesota Birth Cohort

Olmsted County Birth Cohort

The Olmsted County Birth Cohort is a large, population-based birth cohort consisting of data gathered on all children born to mothers residing in Olmsted County, Minnesota, from 1976 to 2016. The data for this cohort was assembled through multiple studies led by Mayo Clinic CCaTS investigators and funded by the National Institutes of Health. The data for this cohort is drawn from:

  • The Rochester Epidemiology Project, a unique population health resource and long-established collaborative initiative originating in Olmsted County with records dating back more than 50 years
  • Comprehensive school records and detailed birth certificate records from Olmsted County

Southeast Minnesota Birth Cohort

In 2010, the Rochester Epidemiology Project expanded from Olmsted County to cover 26 additional counties in southern Minnesota and western Wisconsin. This growth enabled the birth cohort to expand as well. The resulting Southeast Minnesota Birth Cohort covers nine counties in southeast Minnesota.

The availability of data from these birth cohorts makes them rich resources for pediatric epidemiological research.


For more information about the Olmsted County Birth Cohort or the Southeast Minnesota Birth Cohort, contact: