Last data update: Jun 24, 2024. (Total: 47078 publications since 2009)
Records 1-6 (of 6 Records) |
Query Trace: Kolasa MS [original query] |
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Does closure of children's medical home impact their immunization coverage?
Kolasa MS , Stevenson J , Ossa A , Lutz J . Public Health 2014 128 (12) 1106-11 OBJECTIVES: Little is known about the impact closing a health care facility has on immunization coverage of children utilizing that facility as a medical home. The authors assessed the impact of closing a Medicaid managed care facility in Philadelphia on immunization coverage of children, primarily low income children from racial/ethnic minority groups, utilizing that facility for routine immunizations. STUDY DESIGN: Observational longitudinal cohort case study. METHODS: Eligible children were born 03/01/05-06/30/07, present in Philadelphia's immunization information system (IIS), and were active clients of the facility before it closed in September 2007. IIS-recorded immunization coverage at ages 5, 7, 13, 16 and 19 months through January 2009 was compared between clinic children age-eligible to receive specific vaccines before clinic closing (preclosure cohorts) and children not age-eligible to receive those vaccines prior to closing (postclosure cohorts). RESULTS: Of 630 eligible children, 99 (16%) had no additional IIS-recorded immunizations. Third dose DTaP vaccine coverage at age seven months among preclosure cohorts was 54.4% vs. 40.3% among postclosure cohorts [risk ratio 1.31 (1.15,1.49)]. Fourth dose DTaP coverage at 19 months was 65.9% vs. 57.7% [risk ratio 1.24 (1.08,1.42)]. MMR coverage at 16 months was 79.5% vs. 69.9% [risk ratio 1.47 (1.22, 1.76)]. Coverage for the 431331 vaccination series at 19 months was 63.8% vs. 53.8% [risk ratio 1.28 (1.12,1.88)]. CONCLUSIONS: Immunization coverage declined at key age milestones for active clients of a Medicaid managed care that closed as compared with preclosure cohorts of clients from the same facility. When a primary health care facility closes, efforts should be made to ensure that children who had received vaccinations at that facility quickly establish a new medical home. |
Assessing immunization interventions in the Women, Infants, and Children (WIC) Program
Thomas TN , Kolasa MS , Zhang F , Shefer AM . Am J Prev Med 2014 47 (5) 624-8 BACKGROUND: Vaccination promotion strategies are recommended in Women, Infants, and Children (WIC) settings for eligible children at risk for under-immunization due to their low-income status. PURPOSE: To determine coverage levels of WIC and non-WIC participants and assess effectiveness of immunization intervention strategies. METHODS: The 2007-2011 National Immunization Surveys were used to analyze vaccination histories and WIC participation among children aged 24-35 months. Grantee data on immunization activities in WIC settings were collected from the 2010 WIC Linkage Annual Report Survey. Coverage by WIC eligibility and participation status and grantee-specific coverage by intervention strategy were determined at 24 months for select antigens. Data were collected 2007-2011 and analyzed in 2013. RESULTS: Of 13,183 age-eligible children, 5,699 (61%, weighted) had participated in WIC, of which 3,404 (62%, weighted) were current participants. In 2011, differences in four or more doses of the diphtheria, tetanus toxoid, and acellular pertussis (DTaP) vaccine by WIC participation status were observed: 86% (ineligible); 84% (current); 77% (previous); and 69% (never-eligible). Children in WIC exposed to an immunization intervention strategy had higher coverage levels than WIC-eligible children who never participated, with differences as great as 15% (DTaP). CONCLUSIONS: Children who never participated in WIC, but were eligible, had the lowest vaccination coverage. Current WIC participants had vaccination coverage comparable to more affluent children, and higher coverage than previous WIC participants. |
Assessment of vaccine exemptions among Wyoming school children, 2009 and 2011
Pride KR , Geissler AL , Kolasa MS , Robinson B , Van Houten C , McClinton R , Bryan K , Murphy T . J Sch Nurs 2014 30 (5) 332-9 During 2010-2011, varicella vaccination was an added requirement for school entrance in Wyoming. Vaccination exemption rates were compared during the 2009-2010 and 2011-2012 school years, and impacts of implementing a new childhood vaccine requirement were evaluated. All public schools, grades K-12, were required to report vaccination status of enrolled children for the 2009-2010 and 2011-2012 school years to the Wyoming Department of Health. Exemption data were analyzed by exemption category, vaccine, county, grade, and rurality. The proportion of children exempt for ≥1 vaccine increased from 1.2% (1,035/87,398) during the 2009-2010 school year to 1.9% (1,678/89,476) during 2011-2012. In 2011, exemptions were lowest (1.5%) in urban areas and highest (2.6%) in the most rural areas, and varicella vaccine exemptions represented 67.1% (294/438) of single vaccination exemptions. Implementation of a new vaccination requirement for school admission led to an increased exemption rate across Wyoming. |
Seasonal influenza vaccination at school: a randomized controlled trial
Humiston SG , Schaffer SJ , Szilagyi PG , Long CE , Chappel TR , Blumkin AK , Szydlowski J , Kolasa MS . Am J Prev Med 2014 46 (1) 1-9 BACKGROUND: Influenza vaccination coverage for U.S. school-aged children is below the 80% national goal. Primary care practices may not have the capacity to vaccinate all children during influenza vaccination season. No real-world models of school-located seasonal influenza (SLV-I) programs have been tested. PURPOSE: Determine the feasibility, sustainability, and impact of an SLV-I program providing influenza vaccination to elementary school children during the school day. DESIGN: In this pragmatic randomized controlled trial of SLV-I during two vaccination seasons, schools were randomly assigned to SLV-I versus standard of care. Seasonal influenza vaccine receipt, as recorded in the state immunization information system (IIS), was measured. SETTING/PARTICIPANTS: Intervention and control schools were located in a single western New York county. Participation (intervention or control) included the sole urban school district and suburban districts (five in Year 1, four in Year 2). INTERVENTION: After gathering parental consent and insurance information, live attenuated and inactivated seasonal influenza vaccines were offered in elementary schools during the school day. MAIN OUTCOME MEASURES: Data on receipt of ≥1 seasonal influenza vaccination in Year 1 (2009-2010) and Year 2 (2010-2011) were collected on all student grades K through 5 at intervention and control schools from the IIS in the Spring of 2010 and 2011, respectively. Additionally, coverage achieved through SLV-I was compared to coverage of children vaccinated elsewhere. Preliminary data analysis for Year 1 occurred in Spring 2010; final quantitative analysis for both years was completed in late Fall 2012. RESULTS: Results are shown for 2009-2010 and 2010-2011, respectively: Children enrolled in suburban SLV-I versus control schools had vaccination coverage of 47% vs 36%, and 52% vs 36% (p<0.0001 both years). In urban areas, coverage was 36% vs 26%, and 31% vs 25% (p<0.001 both years). On multilevel logistic analysis with three nested levels (student, school, school district) during both vaccination seasons, children were more likely to be vaccinated in SLV-I versus control schools; ORs were 1.6 (95% CI=1.4, 1.9; p<0.001) and 1.5 (95% CI=1.3, 1.8; p<0.001). CONCLUSIONS: Delivering influenza vaccine during school is a promising approach to improving pediatric influenza vaccination coverage. TRIAL REGISTRY: ClinicalTrials.govNCT01224301. |
Assessing the acceptability and feasibility of a school-located influenza vaccination program with third-party billing in elementary schools
Christensen JJ , Humiston SG , Long CE , Kennedy AM , Dimattia K , Kolasa MS . J Sch Nurs 2012 28 (5) 344-51 This study qualitatively assesses the acceptability and feasibility of a school-located vaccination for influenza (SLIV) project that was conducted in New York State in 2009-2011, from the perspectives of project participants with different roles. Fourteen in-depth semistructured interviews with participating schools' personnel and the mass vaccinator were tape-recorded and transcribed. Interviewees were randomly selected from stratified lists and included five principals, five school nurses, two school administrators, and two lead personnel from the mass vaccinator. A content analysis of transcripts from the interviews was completed and several themes emerged. All participants generally found the SLIV project acceptable. School personnel and the vaccinator viewed the SLIV project process as feasible and beneficial. However, the vaccinator identified difficulties with third-party billing as a potential threat to sustainability. |
Provider chart audits and outreach to parents: impact in improving childhood immunization coverage and immunization information system completeness
Kolasa MS , Lutz JP , Cofsky A , Jones T . J Public Health Manag Pract 2009 15 (6) 459-63 OBJECTIVE: Examine impact of provider chart audits and parental outreach in improving immunization coverage among children not up-to-date (NUTD) for immunizations in Philadelphia's immunization information system (IIS). METHODS: We identified 10-month-old children NUTD for age-appropriate immunizations using Philadelphia's IIS. Immunization rates at 10, 13, and 19 months were compared before and after contact with providers and parents. RESULTS: Of 5 610 children NUTD in the IIS at 10 months and living in areas with populations at risk for underimmunization, provider chart audits indicated that 3 612 (64%) were actually up-to-date (UTD); the majority of these (2 203) received additional age-appropriate immunizations and were also UTD at 19 months. Of 1 998 children truly NUTD at 10 months, half received overdue immunizations by 13 months following contact with parents via telephone, postcards, and home visits, but only 23 percent were UTD for age-appropriate vaccines at 19 months. CONCLUSIONS: Provider chart audits improved IIS data completeness, indicating that providers need to submit more complete and timely data to the IIS. Outreach to parents likely contributed to half of the children NUTD at 10 months receiving overdue immunizations by 13 months. However, most were again NUTD at 19 months, indicating that outreach efforts should be continued through 19 months or until children are brought UTD. Furthermore, in spite of outreach, about half of the NUTD children were not brought UTD by 13 or 19 months. New strategies should be developed to ensure that these children receive recommended vaccinations. |
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