With the goal of developing a comprehensive predictive model of eligible children's enrollment in California's Medicaid (Medi-Cal) and State Children's Health Insurance Program (SCHIP; Healthy Families) programs, the authors examined the effects of multiple family-level factors and contextual county-level factors on children's enrollment in Medicaid and SCHIP.

Authors used data from the 2001 California Health Interview Survey (CHIS), data on outstationed eligibility workers, and administrative data from state agencies and local health insurance expansion programs for fiscal year 2000–2001.