Center for Effective Global Action

• The Kenya Life Panel Survey (KLPS) is a multigenerational longitudinal dataset originally designed to assess the impacts of a school-based deworming program in Busia District, Kenya initially implemented in 1998-2001.

• Individuals in the original cohort were students attending one of 75 primary schools in Busia District in 1998. This cohort of 7,527 individuals was later expanded to also include 5,153 children of the original cohort members.

• In 2025, members of the original cohort were aged 34 to 45, and second-generation members were aged 7 to 15. Baseline data was collected from original cohort participants between 1998 and 2001, with five rounds of follow-up data collected between 2003 and 2025. Baseline data on second-generation cohort members were collected in 2017-2021, with follow-up data collected in 2023-2025.

• Data include information about education, employment, health, migration, cognition, and expenditures, among other outcomes. Each follow-up round achieved an effective tracking rate between 80% and 85% of the original 7,527 cohort members. While all original cohort members resided in rural areas at baseline, significant migration has led 43% of them to live in a town or city by 2023, and some have moved to other countries.

• Data from the KLPS are available on Harvard Dataverse.