Objectives: To describe a national sample of health department immunization
clinics in terms of populations served, patient volume trends, services of
fered, and immunization practices.
Methods: Telephone survey conducted with health departments sampled from a
national database, using probability proportional to population size.
Results: All (100%) 166 sampled and eligible clinics completed the survey.
The majority of pediatric patients were uninsured (42%) or enrolled in Medi
caid (34%). Most children (69%) and adolescents (70%) were referred to the
health department, with only 12% using these clinics as a medical home. A n
umber of clinics (72%) reported recent increases in adolescents served. Les
s than 25% of clinics offered comprehensive care, 47% conducted semiannual
coverage assessments, and 76% and 38% operated recall systems for children
and adolescents. Storage of records in an electronic database was common (8
3%).
Conclusions: Although the majority of these clinics do not provide comprehe
nsive care, they continue to serve vulnerable children, including adolescen
ts, Medicaid enrollees, and the uninsured, and may represent the main conta
ct with the healthcare system for such patients. Because assuring the immun
ization of these children is essential to their health and the health of ou
r nation as a whole, this immunization safety net must be preserved. Experi
ence implementing key recommendations such as coverage assessment and feedb
ack as well as reminder or recall may enable health department staff to ass
ist private provider colleagues. Further research is needed to investigate
how patient populations, services offered, and immunization practices vary
by different clinic characteristics.