DUA amendment to add a use case and file linkage fee. This study focuses on a cohort of Washington State children between zero to three years’ old who participated in Early Support for Infants & Toddlers (ESIT) program. We will follow their education paths in pre-K and Kindergarten and investigate the role of health factors in children’s education outcomes. Particularly, we profile the population by their eligibility for early learning intervention services due to specific developmental delays or disability. In addition, by connecting with Washington State All Payers Claims Database (APCD), using linkage data elements (i.e., internal_member_id, first name, last name, middle name, gender, date of birth, and ssn) we will investigate what medical diagnosis and procedures these children have received and cluster condition specific sub-populations.