Frequency of alternative immunization schedule use in a metropolitan area.
ABSTRACT Recent studies have described an increase in parental hesitancy regarding vaccines as well as increases in parental adoption of vaccine schedules that delay or limit receipt of recommended vaccines. This study quantifies potential prevalence and trends in alternative schedule compliance by measuring consistent shot-limiting in a metropolitan area of Oregon.
Retrospective cohort analysis using the Oregon ALERT Immunization Information System to track children born between 2003 and 2009 in the Portland metropolitan area. Joinpoint regression was used to analyze prevalence trends in consistent shot-limiting during that time period. The 2007-2009 Haemophilus influenzae type b vaccine shortage and increased availability of combination vaccines were also examined for their effects on shot-limiting rates.
A total of 4502 of 97,711 (4.6%) children met the definition of consistent shot-limiters. The proportion of consistent shot-limiters in the population increased from 2.5% to 9.5% between 2006 and 2009. Compared with those with no or episodic limiting, consistent shot-limiters by 9 months of age had fewer injections (6.4 vs 10.4) but more visits when immunizations were administered (4.2 vs 3.3). However, only a small minority of shot-limiters closely adhered to published alternative schedules.
The percentage of children consistently receiving 2 or fewer vaccine injections per visit between birth and age 9 months increased threefold within a 2-year period, suggesting an increase in acceptance of non-Advisory Committee on Immunization Practices vaccine schedules in this geographic area.
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ABSTRACT: To determine if U.S. pediatric residency programs provide formal training in vaccine safety to address parental vaccine concerns. An electronic survey was mailed to all members of the Association of Pediatric Program Directors (APPD) to assess (1) if U.S. pediatric residency programs were providing formal vaccine safety training, (2) the content and format of the training if provided, and (3) interest in a training module for programs without training. Two follow-up surveys were mailed at 2 week intervals. Responses to the survey were collected at 4 weeks following the last mailing and analyzed. Logistic regression was used to assess the impact of program size on the likelihood of vaccine safety training. Pearson's chi square was used to compare programs with and without formal vaccine safety training in 5 U.S. regions. The survey was sent to 199 APPD members; 92 completed the survey (response rate 46.2%). Thirty-eight respondents (41%) had formal training in vaccine safety for pediatric residents at their programs; 54 (59%) did not. Of those that did not, the majority (81.5%) were interested in formal vaccine safety training for their residents. Of all respondents, 78% agreed that training in vaccine safety was a high priority for resident education. Thirty-five percent of all respondents agreed that local parental attitudes about vaccines influenced the likelihood of formal vaccine safety training. Most pediatric residency programs surveyed do not include formal training on vaccine safety; yet, such training is supported by pediatric residency program directors as a priority for pediatric residents.Vaccine 04/2014; · 3.77 Impact Factor
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ABSTRACT: Incomplete and delayed vaccination is a barrier to individual and population protection from vaccine-preventable diseases. We aimed to assess visit frequency and pattern in relation to vaccination status in a Swiss cohort of 2-year-old children in order to review opportunities for completion of scheduled immunizations. A retrospective dynamic cohort study design involving children insured with a single health insurer in Switzerland was chosen. Time-to-event analysis was used to evaluate timing of defined immunizations of interest from submitted invoices. Diphtheria, tetanus, acellular pertussis (DTaP) and measles, mumps and rubella (MMR) immunizations administered to children registered with this health insurer were assessed. The specified vaccines are recommended at 2, 4, 6 and 15-24 months, and 12 and 15-24 months of age, respectively. 21,588 children born between January 1st, 2006 and June 30th, 2008 and registered with the health insurer from no later than 4 weeks of age were included. Only 40.9% of the cohort was up-to-date for both vaccines (DTaP and MMR) at 2 years of age. The average number of visits made during up to 2 years of age was 14.7 (95% CI: 15.9-16.3). Less than 5% of children made fewer than 5 visits, the minimum number required to complete all recommended immunizations by 2 years of age. Although number of visits varied by final vaccination status, more than 90% of the cohort made sufficient visits to complete the specified courses, even when contraindications were assumed to be present at up to half the visits. Swiss children who are not fully immunized at 2 years of age make fewer visits to ambulatory health care up to that age, but they have more than sufficient opportunities to complete immunizations as scheduled. Ambulatory healthcare providers in Switzerland have ample opportunity to promote and administer vaccinations in a timely manner.Vaccine 09/2013; · 3.77 Impact Factor
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ABSTRACT: Objectives. The aim of this study was to examine caregivers' refusal of preventive medical and dental care for children. Methods. Prevalence rates of topical fluoride refusal based on dental records and caregiver self-reports were estimated for children treated in 3 dental clinics in Washington State. A 60-item survey was administered to 1024 caregivers to evaluate the association between immunization and topical fluoride refusal. Modified Poisson regression models were used to estimate prevalence rate ratios (PRRs). Results. The prevalence of topical fluoride refusal was 4.9% according to dental records and 12.7% according to caregiver self-reports. The rate of immunization refusal was 27.4%. In the regression models, immunization refusal was significantly associated with topical fluoride refusal (dental record PRR = 1.61; 95% confidence interval [CI] = 1.32, 1.96; P < .001; caregiver self-report PRR = 6.20; 95% CI = 3.21, 11.98; P < .001). Caregivers younger than 35 years were significantly more likely than older caregivers to refuse both immunizations and topical fluoride (P < .05). Conclusions. Caregiver refusal of immunizations is associated with topical fluoride refusal. Future research should identify the behavioral and social factors related to caregiver refusal of preventive care with the goal of developing multidisciplinary strategies to help caregivers make optimal preventive care decisions for children. (Am J Public Health. Published online ahead of print May 15, 2014: e1-e7. doi:10.2105/AJPH.2014.301927).American Journal of Public Health 05/2014; · 3.93 Impact Factor