{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,4]],"date-time":"2026-03-04T23:37:05Z","timestamp":1772667425756,"version":"3.50.1"},"reference-count":64,"publisher":"American Academy of Pediatrics (AAP)","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2002,11,1]]},"abstract":"<jats:p>Context. An overarching national health goal of Healthy People 2010 is to eliminate disparities in leading health care indicators including immunizations. Disparities in US childhood immunization rates persist, with inner-city, black, and Hispanic children having lower rates. Although practice or clinic-based interventions, such as patient reminder\/recall systems, have been found to improve immunization rates in specific settings, there is little evidence that those site-based interventions can reduce disparities in immunization rates at the community level.<\/jats:p>\n               <jats:p>Objective. To assess the effect of a community-wide reminder, recall, and outreach (RRO) system for childhood immunizations on known disparities in immunization rates between inner-city versus suburban populations and among white, black, and Hispanic children within an entire county.<\/jats:p>\n               <jats:p>Setting. Monroe County, New York (birth cohort: 10 000, total population: 750 000), which includes the city of Rochester. Three geographic regions within the county were compared: the inner city of Rochester, which contains the greatest concentration of poverty (among 2-year-old children, 64% have Medicaid); the rest of the city of Rochester (38% have Medicaid); and the suburbs of the county (8% have Medicaid).<\/jats:p>\n               <jats:p>Interventions. An RRO system was implemented in 8 city practices in 1995 (covering 64% of inner-city children) and was expanded to 10 city practices by 1999 (covering 74% of inner-city children, 61% of rest-of-city children, and 9% of suburban children). The RRO intervention involved lay community-based outreach workers who were assigned to city practices to track immunization rates of all 0- to 2-year-olds, and to provide a staged intervention with increasing intensity depending on the degree to which children were behind in immunizations (tracking for all children, mail, or telephone reminders for most children, assistance with transportation or scheduling for some children, and home visits for 5% of children who were most behind in immunizations and who faced complex barriers).<\/jats:p>\n               <jats:p>Study Participants. Three separate cohorts of 0- to 2-year-old children were assessed\u2014those residing in the county in 1993, 1996, and 1999.<\/jats:p>\n               <jats:p>Study Design. Immunization rates were measured for each geographic region in Monroe County at 3 time periods: before the implementation of a systematic RRO system (1993), during early phases of implementation of the RRO system (1996), and after implementation of the RRO system in 10 city practices (1999). Immunization rates were compared for children living in the 3 geographic regions, and for white, black, and Hispanic children.<\/jats:p>\n               <jats:p>Immunization rates were measured by the same methodology in each of the 3 time periods. A denominator of children was obtained by merging patient lists from the practice files of most pediatric and family medicine practices in the county (covering 85% to 89% of county children). A random sample of children (&amp;gt;500 from the suburbs and &amp;gt;1200 from the city for each sampling period) was then selected for medical chart review at practices to determine demographic characteristics (including race and ethnicity) and immunization rates. City children were oversampled to allow detection of effects by geographic region and race. Rates for the 3 geographic regions and for the entire county were determined using Stata to adjust for the clustered sampling.<\/jats:p>\n               <jats:p>Main Outcome Measures. Immunization rates at 12 and 24 months for recommended vaccines (4 diphtheria-tetanus-pertussis:3 polio:1 measles-mumps-rubella: \u22651 Haemophilus influenzae type b on or after 12 months of age).<\/jats:p>\n               <jats:p>Results. Disparities by Geographic Region: Baseline immunization rates (1993) for 24-month-olds were as follows: inner city (55%), rest of city (64%), and suburbs (73%), with an 18% difference in rates between the inner city and suburbs. By 1996, immunization rates rose faster in the inner city (+21% points) than in the suburbs (+14% points) so that the difference in rates between the inner city and suburbs had narrowed to 11%. In 1999, rates were similar across geographic regions: inner city (84%), rest of city (81%), and suburbs (88%), with a 4% difference between the inner city and suburbs. Disparities by Race and Ethnicity: Immunization rates were available in 1996 and 1999 by race and ethnicity. Twenty-four-month immunization rates in 1996 showed disparities: white (89%), black (76%), and Hispanic (74%), with a 13% difference between rates for white and black children and a 15% difference between white and Hispanic children. In 1999, rates were similar across the groups: white (88%), black (81%), and Hispanic (87%), with a 7% difference between rates for white and black children, and a 1% difference between white and Hispanic children.<\/jats:p>\n               <jats:p>Conclusions. A community-wide intervention of patient RRO raised childhood immunization rates in the inner city of Rochester and was associated with marked reductions in disparities in immunization rates between inner-city and suburban children and among racial and ethnic minority populations. By targeting a relatively manageable number of primary care practices that serve city children and using an effective strategy to increase immunization rates in each practice, it is possible to eliminate disparities in immunizations for vulnerable children.<\/jats:p>","DOI":"10.1542\/peds.110.5.e58","type":"journal-article","created":{"date-parts":[[2004,8,14]],"date-time":"2004-08-14T00:17:55Z","timestamp":1092442675000},"page":"e58-e58","source":"Crossref","is-referenced-by-count":124,"title":["Reducing Geographic, Racial, and Ethnic Disparities in Childhood Immunization Rates by Using Reminder\/Recall Interventions in Urban Primary Care Practices"],"prefix":"10.1542","volume":"110","author":[{"given":"Peter G.","family":"Szilagyi","sequence":"first","affiliation":[{"name":"*Department of Pediatrics and Strong Children\u2019s Research Center, University of Rochester School of Medicine and Dentistry, Rochester, New York"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stanley","family":"Schaffer","sequence":"additional","affiliation":[{"name":"*Department of Pediatrics and Strong Children\u2019s Research Center, University of Rochester School of Medicine and Dentistry, Rochester, New York"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Laura","family":"Shone","sequence":"additional","affiliation":[{"name":"*Department of Pediatrics and Strong Children\u2019s Research Center, University of Rochester School of Medicine and Dentistry, Rochester, New York"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Richard","family":"Barth","sequence":"additional","affiliation":[{"name":"*Department of Pediatrics and Strong Children\u2019s Research Center, University of Rochester School of Medicine and Dentistry, Rochester, New York"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sharon G.","family":"Humiston","sequence":"additional","affiliation":[{"name":"\u2021Department of Emergency Medicine and Strong Children\u2019s Research Center, University of Rochester School of Medicine and Dentistry, Rochester, New York"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mardy","family":"Sandler","sequence":"additional","affiliation":[{"name":"\u00a7Department of Social Work, Strong Memorial Hospital, University of Rochester School of Medicine and Dentistry, Rochester, New York"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lance E.","family":"Rodewald","sequence":"additional","affiliation":[{"name":"\u2016National Immunization Program, Centers for Disease Control and Prevention"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"417","published-online":{"date-parts":[[2002,11,1]]},"reference":[{"key":"2022121213553560300_R1","unstructured":"US Department of Health and Human Services. 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