Immunization Outreach in an Inner-City Housing Development: Reminder–Recall on Foot

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Abstract
Objective.: To determine rates of immunization coverage among children 3 to 72 months of age in a large public housing development, to develop a community-based outreach program to increase coverage, and to evaluate the effect of the program. Design.: A door-to-door canvass of the development by specially trained emergency medical technicians to enroll families, to determine immunization status from written records, and to follow-up to encourage immunizations and well-child care. The program was evaluated, comparing rates of immunization by age with an expectation based on the immunization histories before enrollment. Setting.: A Chicago public housing development, October 1993 through December 1996. Outcome Variables.: Antigen-specific and series-specific coverage based on written records. Results.: Of the caregivers, 92% were able to identify a primary care provider. At the time of enrollment, 37% of 1075 children were up-to-date, but that proportion varied by age with 27% of children 19 to 35 months of age being up-to-date. The program increased rates of immunization compared with the expectation from the preenrollment rates. At their final assessment, 50% of the children were up-to-date. For individual vaccines, there was a positive program effect. For example, before enrollment, 22% of children 15 months of age had received measles, mumps, and rubella vaccine. However, 39% of children who were enrolled in the program before they were 12 months of age had received their first immunizations by 15 months of age. Conclusions.: Children in the housing development had very low rates of immunization before enrollment. An in-person intervention was effective in reaching families and determining immunization status. In the 3-year enrollment and observation period, rates of immunization increased.