School-based adolescent hepatitis B immunization programs in the United States: strategies and successes

School-based HPV immunization of young adolescents: effects of two brief health interventions

Adolescent immunization rates for human papillomavirus (HPV) are low and interventions within school-based health centers (SBHCs) may increase HPV uptake and series completion. We examined the effect of a parent health message intervention on HPV vaccination intent, first dose uptake and series completion among adolescents who received care at SBHCs. Via computer-assisted telephone interviews (CATI), 445 parents of young adolescents were randomly assigned to 2 two-level interventions using a 2 × 2 design (rhetorical question (RQ) or no-RQ and one-sided or two-sided message). The RQ intervention involved asking the parent a question they were likely to endorse (e.g., "Do you want to protect your daughter from cervical cancer?") with the expectation that they would then behave in a manner consistent with their endorsement (i.e., agree to vaccinate). For the one-sided message, parents were given information that emphasized the safety and effectiveness of HPV vaccine, whereas the two-sided message acknowledged that some parents might have concerns about the vaccine, followed by reassurance regarding the safety and effectiveness. At CATI conclusion, parents indicated intentions to have their adolescents vaccinated. Parents who endorsed any intent were sent a consent form to return and all adolescents with signed returned consents were vaccinated at SBHCs. Medical records were reviewed for uptake/completion. Parents were 87% female; adolescents were 66% male and racially/ethnically diverse. 42.5% of parents indicated some intention to immunize, 51.4% were unsure, and 6.1% were not interested. 34% (n = 151) of adolescents received their first dose with series completion rates of 67% (n = 101). The RQ component of the intervention increased intention to vaccinate (RR = 1.45; 95%CI 1.16,1.81), but not first dose uptake or series completion. The 1-sided and 2-sided messages had no effect. This brief, RQ health intervention enhanced intent, but did not impact vaccination rates, likely due to the time delay between the intervention and consent form receipt.

School-located influenza immunization programs: factors important to parents and students

PURPOSE

To describe both parent and student perspectives on the importance of various programmatic factors when deciding to participate in a school-located immunizations program (SLIP) for influenza vaccine.

METHODS

Questionnaires were distributed to middle- and high-school students and their parents; the document assessed demographic data, influenza vaccination history, and the importance of various factors in their decision to participate in a potential SLIP for influenza vaccine. Factor analysis created six primary factors of importance related to programming: (1) safety/trust; (2) outbreaks (representing imminent threat of disease, an environmental factor associated with program timing); (3) issues of site implementation; (4) public health benefits; (5) record-keeping; (6) medical/emotional support.

RESULTS

Participants included 621 students and 579 parents; 566 student/parent dyads were included. Most respondents were female, felt it is important to be immunized against the flu, and received the influenza vaccine in the past. Fewer than 50% had received the intranasal vaccine. More parents (67%) than students (46%) expressed a general willingness to consent to utilizing a SLIP. The programmatic factors associated with public health were second only to safety/trust factors as the most important to parents and students when considering participation in a SLIP. Demographic variables were found to be associated with the importance ratings of program factors associated with participation in a SLIP.

CONCLUSIONS

When considering possible participation in SLIPs, parents and students consider programmatic factors associated with safety/trust and public health benefits to be of the greatest importance. Further study will be needed to develop effective and culturally sensitive messaging that targets and emphasizes these factors to potentially increase participation in SLIPS.

Early experience conducting school-located vaccination programs for seasonal influenza

OBJECTIVES

We determined program effectiveness, feasibility, and acceptance of school-located vaccination (SLV) clinics for seasonal influenza that took place before the 2008 universal influenza vaccination recommendations.

METHODS

We surveyed program directors of 23 programs in the United States who conducted SLV clinics during the 2005 to 2006 and 2006 to 2007 influenza seasons.

RESULTS

Of 391,423 children enrolled in schools with SLV clinics, 61,463 (15.7%) were vaccinated at 499 sites (schools) in 23 programs. Of these, 22 were small- and medium-sized programs that vaccinated 32,875 (24.1%) of the 136,151 children enrolled there, averaging 31.9% of students per site. One populous county vaccinated an additional 28,588 (11.2%) of its 255,272 enrolled children, averaging 13.9% per school. Children in grades K to 6 had consistently higher mean vaccination rates (21.5%) compared with middle school children (10.3%) or high school youth (5.8%). Program acceptability was high, and no program had to forego any key public health activities; 5 hired temporary help or paid overtime. The outlook for continuing such clinics was good in 7 programs, but depended on help with vaccine purchasing (9), funding (8), or additional personnel (4), with multiple responses allowed.

CONCLUSIONS

These vaccination coverage rates provide a baseline for future performance of school-located mass vaccination clinics. Although the existence and conduct of these programs in our study was considered acceptable by leaders of public health departments and anecdotally by parents and school administrators, sustainability may require additional means to pay for vaccines or personnel beyond the usual available health department resources.

Coordinating the delivery of vaccinations and other preventive health care recommendations for adolescents

Although recommendations for annual preventive care for adolescents have been in place for decades, the need to bring adolescents to the medical setting for newly recommended vaccines has placed this issue in the public health spotlight. Aggressive efforts have been ongoing to increase adolescent adherence to new vaccine recommendations--a measured outcome variable, and the hope has been that enhanced adherence to comprehensive health care visits will follow. Evidence indicates that the implementation of more comprehensive preventive health care elements among adolescents may be improving; however, a passive approach to bringing more adolescents to preventive health visits using vaccine as an incentive may not be effective for all youth. This paper reviews the history of recommendations for new vaccines as well as comprehensive health care visit recommendations for adolescents, how these recommendations may synergistically improve preventive care for adolescents, and how we may need to continue to think creatively to further access all youth for preventive health care using vaccination implementation as a model for reaching out beyond the providers' office walls.

Evaluation of an Intervention Program to Increase Immunization Compliance Among School Children

State immunization laws necessitate compliance for students enrolling in a public or private school system. In support of state laws, school nurses expend hours to achieve immunization compliance with school-age children. For the purpose of creating a more efficient system, researchers implemented an educational and incentive program in local elementary schools to increase tetanus, diphtheria, and acellular pertussis (Tdap) booster compliance rates. Students were instructed in regard to their immune systems, immunizations, and where to obtain immunizations. In addition, compliant students were entered into a drawing for an iPod Shuffle or a RipStick. In 2009, the compliance rate expanded from 4% to 57% during a 4-week intervention program. Notably, the Tdap immunization compliance rate in the previous year (2008) was 54%. Researchers concluded that the intervention did not improve compliance rates significantly.

Strategies for implementing school-located influenza vaccination of children: a systematic literature review

BACKGROUND

The Advisory Committee on Immunization Practices (ACIP) recommends influenza vaccinations for all children 6 months to 18 years of age, which includes school-aged children. Influenza immunization programs may benefit schools by reducing absenteeism.

METHODS

A systematic literature review of PubMed, PsychLit, and Dissertation Abstracts available as of January 7, 2008, was conducted for school-located vaccinations, using search words "School Health Services" and "Immunization Programs"; limited to "Child" (6-12 years) and "Adolescent" (13-18 years) for PubMed and "mass or universal" and (immuniz(*) or immunis(*) or vaccin(*)) and (school or Child or Adolescen(*)) for PsychLit and Dissertation Abstracts. Fifty-nine studies met the criteria for review.

RESULTS

Strategies such as incentives, education, the design of the consent form, and follow-up can increase parental consent and number of returned forms. Minimizing out-of-pocket cost, offering both the intramuscular (shot) and intranasal (nasal spray) vaccination, and using reminders can increase vaccination coverage among those whose parents consented. Finally, organization, communication, and planning can minimize the logistical challenges.

CONCLUSIONS

Schools-based vaccination programs are a promising option for achieving the expanded ACIP recommendation; school-located vaccination programs are feasible and effective. Adhering to lessons from the peer-reviewed scientific literature may help public health officials and schools implement the expanded recommendation to provide the greatest benefit for the lowest cost. Given the potential benefits of the expanded recommendation, both directly to the vaccinated children and indirectly to the community, prospective, well-controlled trials to establish the cost-effectiveness of specific vaccination strategies should be high priorities for future research.

Additional health care visits needed among adolescents for human papillomavirus vaccine delivery within medical homes: a national study

OBJECTIVE

We estimated the additional number of primary care visits needed to deliver 3 doses of human papillomavirus vaccine to all US adolescents in medical homes. We determined adolescent and family factors associated with needing the greatest number of additional visits for full human papillomavirus vaccination.

METHODS

We performed a cross-sectional analysis of adolescents 11 to 21 years of age included in the 2002 and 2003 Medical Expenditure Panel Surveys (n = 2900) to measure existing primary care visits to pediatricians, family physicians, obstetrician/gynecologists, and internists. We then estimated additional visits needed for human papillomavirus vaccination. We determined the number of additional visits needed within a 6-, 12-, 18-, or 24-month vaccination window.

RESULTS

Within a 12-month period, 72% of female adolescents would need 3 visits for human papillomavirus vaccination if the vaccine was introduced at a preventive visit; 9% and 16% would need 1 and 2 more visits, respectively. Similarly, 79% of male patients would need 3 visits; 7% and 12% would need 1 and 2 more visits, respectively. If all opportunities to vaccinate were used, then 41% of female patients and 52% of male patients would need 3 additional visits within 12 months. With expansion of the window to 24 months and vaccination at every possible visit, 23% of female patients and 37% of male patients would need 3 additional visits. Factors that predicted needing more visits (2 or 3 vs 0 or 1 in 24 months) included being older, male, black, Hispanic, uninsured, and near-poor.

CONCLUSIONS

Most adolescents would require 2 or 3 additional primary care visits to receive 3 vaccines for human papillomavirus in the medical home. Strategies to minimize additional visits include vaccinating patients at all primary care visits and encouraging annual preventive visits.

Adolescent immunizations: policies to provide a shot in the arm for adolescents

With multiple vaccines for adolescents recently recommended and in various stages of development, the issue of how to effectively deliver immunizations to this age group has become increasingly important. This manuscript addresses some of the primary barriers and potential public health solutions to providing vaccinations effectively to adolescents. The foreseen complexities associated with each potential solution will be noted throughout; there remain potentially unforeseen ramifications as well.

Herd protection against influenza

Mortality and hospitalization rates due to influenza have risen despite increasing vaccine coverage for the most vulnerable population; however, those most vulnerable to complications and death are the least likely to respond to the vaccine. New strategies for influenza control are needed and indirect effectiveness (herd protection) has been demonstrated for several currently used vaccines - rubella, H. influenzae type b, pneumococcus varicella and hepatitis A. The Japanese schoolchildren program provided proof of concept of indirect effectiveness of influenza vaccine. The Central Texas field trial has demonstrated significant herd protection of adults utilizing the live, attenuated influenza vaccine (LAIV) to children. Immunization of <20% of children at the intervention site resulted in an 8-18% reduction of medically attended acute respiratory illness in adults compared to rates in the comparison sites. LAIV given by nasal spray is efficacious against matched and poorly matched prevalent strains, easy to administer and readily accepted by children for annual immunization. School-based clinics could provide a platform for rapid deployment of vaccine accessible to all segments of the population. This strategy could be critical for control of pandemic influenza.

Vaccines for sexually transmitted infections

STIs are responsible for significant human suffering and carry significant economic costs. Strategies to control STIs, such as screening programs and condoms, have had limited success. Vaccines offer an additional method that is not coitally related and does not depend on consistent use. The HPV vaccine confers protection against the most common types causing cervical dysplasia. Mathematical modeling suggests that the HSV vaccine, given universally to all young women, should reduce genital and neonatal herpes in the population at large. Much work remains on vaccines for chlamydia and gonorrhea, but they offer the hope of preventing pelvic inflammatory disease and its sequelae. As these vaccines become licensed, their successful implementation will require the support of professional organizations, families, and providers.

An evaluation of school-level factors used in a successful school-based hepatitis B immunization initiative

PURPOSE

To examine the effect of different school-level factors on the percent return of consent or refusal forms, the percent student participation/enrollment rate, and the percent completion rate of all 3 immunizations in the vaccination series in a school-based hepatitis B immunization initiative.

METHODS

The Houston Hepatitis B Immunization Initiative (HBII) was conducted from 1998 through 2001 to provide free hepatitis B immunizations to elementary school students in low socioeconomic areas. At the end of each academic school year, the nurse from each school participating in the initiative was asked to complete a survey evaluating the different strategies utilized in each school to aid in the program's success. The effect of different organizational methods on rate of return of consent/refusal forms, participation rates, and immunization completion rates from the program year 1999-2000 was determined using frequencies, Mann-Whitney analyses, Kruskal-Wallis analyses, and Spearman's correlations.

RESULTS

An increase in percent return of signed consent/refusal forms was more likely when teachers helped in publicity/promotion (p = .012) and educational packet distribution (p = .041). Additionally, when teachers assumed responsibility for collecting the forms, the percent return of signed consent/refusal forms (p = .018) and the percent of students receiving all 3 vaccines in the series through HBII (p = .030) were more likely to increase. An increase in signed consent/refusal forms returned was also associated with increased rates of student participation in the program for each school. In schools where students helped specifically with educational packet distribution (p = .039), the percent of students receiving at least 1 vaccine dose from the program was more likely to be higher.

CONCLUSIONS

The involvement of teachers in vaccination programs is very important for program success, especially in the enrollment and return of consent/refusal form phases of immunization initiatives. Student involvement may empower the students and encourage other students to participate in the program. Future school-based immunization initiatives can utilize these data to incorporate the most effective school-level factors into their programs to maximize the number of students immunized.

Challenges to vaccinating adolescents: vaccine implementation issues

BACKGROUND

Adolescent immunization is a growing field, with many new vaccines in development and new or expanded immunization recommendations on the horizon.

METHODS

Characteristics of adolescents and their health care are discussed, focusing specifically on the challenges of incorporating a potential recommendation to replace tetanus-diphtheria toxoid with tetanus-diphtheria-acellular pertussis vaccine during early or middle adolescence as part of routine preventive care. Using the framework created by the Centers for Disease Control and Prevention's Task Force on Community Preventive Services, three overlapping levels at which there are opportunities for vaccine intervention are reviewed: (1) health care systems (enhancing access to vaccination services); (2) health care providers (provider-based interventions); and (3) patients and families ("increasing community demand").

RESULTS

There are several barriers to vaccine implementation that make achieving high immunization coverage rates among adolescents a challenge. Promising interventions for improving vaccination rates at the health care system level include reducing out-of-pocket costs, expanding access to immunizations, and implementing vaccination programs in schools. Provider-based interventions for improving vaccination rates include regular assessments of immunization rate with feedback to all office personnel, provider reminders, and standing orders. Client recall and reminders, education, and requirements for school entry can assist in "increasing community demand" for vaccinations in that they motivate parents and adolescents to follow through with immunizations.

CONCLUSIONS

Adolescents are unique from other populations. Previously studied interventions need to be tested in this age group as immunization becomes a more salient issue in adolescent health care.

A middle school immunization law rapidly and substantially increases immunization coverage among adolescents

OBJECTIVES

This study assessed the effectiveness of a middle school vaccination requirement for raising second-dose measles, mumps, and rubella vaccine and hepatitis B vaccine coverage among adolescents.

METHODS

Random-digit-dialed telephone surveys were conducted before (1998) and after (1999) the implementation of a vaccination requirement for entry into the seventh grade in San Diego, Calif.

RESULTS

Vaccination coverage was higher among children subject to the vaccination requirement (seventh-grade students; 60%) than among fifth- and sixth-grade students 1 year before the requirement (13%, P <.001), and 8th- through 12th-grade students not subject to the requirement (27%, P <.0001).

CONCLUSIONS

Middle school-entry vaccination requirements can rapidly and substantially raise vaccination coverage among students subject to the law.

Office laboratory procedures, office economics, parenting and parent education, and urinary tract infection

Four areas of pediatric office practice are again reviewed: office laboratory procedures, office economics, parenting and parent education, and urinary tract infection. Screening for celiac disease and the use of rapid antigen testing for extrapharyngeal group A Streptococcus infections are included in office laboratory procedures. Utilization of health care among patients with public insurance, electronic medical records, billing among pediatric residents, and satisfaction surveys are reviewed in office economics. Challenges related to breastfeeding, obesity management and timely immunizations are covered within parenting and parent education. Finally, the use of an augmented urinalysis and a discussion of imaging for first febrile urinary tract infections are included in the area of urinary tract infection.

Hepatitis B vaccination among adolescents in 3 large health maintenance organizations

OBJECTIVE

In 1995, the Advisory Committee on Immunization Practices (ACIP) recommended routine hepatitis B (HB) vaccination of all unvaccinated 11- to 12-year-old adolescents. Little is known about the implementation of these recommendations in a managed care setting. The objective of this study was to determine the impact of ACIP recommendations on HB vaccination among adolescents in 3 managed care settings.

METHODS

We assessed HB vaccination coverage among adolescents who were enrolled in 3 large health maintenance organizations (HMOs) and who turned 13 years old after the 1995 ACIP recommendations. Children who were 8 to 10 years of age during May 1993 and were continuously enrolled through December 1998 were eligible. We used the HMOs' computerized immunization tracking system to collect HB vaccination dates. The percentage of adolescents who received 3 doses of HB vaccine was determined.

RESULTS

In HMOs A, B, and C, coverage levels for 3 doses of HB vaccine were 43.4%, 65.5%, and 25.7%, respectively, among 13-year-olds in 1998 compared with 26.1%, 50.4%, and 5.5% among 13-year-olds in 1996. Between the ages of 11 and 13 years, coverage rates among adolescents aged 13 in 1998 rose more than the coverage among adolescents aged 13 in 1996. The proportion of 13-year-olds in 1998 who received the first dose of HB vaccine by December 1998 was much higher at 89.6%, 65.2%, and 56.6% in HMOs A, B, and C, respectively, compared with the proportion who completed the 3-dose series (43.4%, 65.5%, and 25.7%, respectively).

CONCLUSIONS

After the 1995 ACIP recommendations, HB vaccination coverage levels among 13-year-olds increased in each of the HMOs, suggesting adherence with national recommendations. Differences among the 3 HMOs may reflect differences in internal policies. More effective strategies may be needed to achieve the Healthy People 2010 goal of 90% vaccination coverage rates among adolescents.

Hepatitis B vaccination coverage among United States children

BACKGROUND

In 1991 the Advisory Committee on Immunization Practices recommended vaccination of all infants with three doses of hepatitis B virus vaccine (HepB) by 18 months of age as a key component of a comprehensive strategy to eliminate hepatitis B virus transmission in the United States. The American Academy of Pediatrics and the American Academy of Family Physicians published similar recommendations soon afterward.

METHODS

Data were obtained from the National Immunization Survey, a survey that began in 1994 and is conducted quarterly by the Centers for Disease Control and Prevention to estimate vaccination coverage among noninstitutionalized US children 19 to 35 months of age.

RESULTS

The 1999 National Immunization Survey data indicate that approximately 88.1% (95% confidence interval, 87.4, 88.8) of children 19 to 35 months of age had received at least three doses of HepB (HepB3). There has been a consistent increase in HepB3 coverage since 1994. However, the rate of increase has slowed in recent years and HepB3 coverage remains lower than coverage attained with three doses of diphtheria-tetanus-pertussis and Haemophilus influenzae vaccines. HepB3 coverage varied slightly by race/ethnicity and was highest among white and Asian children (89%). Coverage also varied by state; 26 states had levels of at least 90%.

CONCLUSIONS

Since the 1991 recommendations for universal hepatitis B vaccination, there has been a dramatic increase in coverage levels among children 19 to 35 months of age. However, the Childhood Immunization Initiative goal of 90% coverage has not been reached. Therefore continued efforts are needed to protect US children against this serious but preventable infection.

Nurse volunteers in school-based hepatitis B immunization programs

School districts across the nation are implementing school-based hepatitis B virus vaccination programs. Because adolescents are at risk of contracting hepatitis B virus, these programs are important in preventing infections. Critical to the success of these programs is having qualified and cost-effective health professionals to administer the vaccine. This article describes the recruitment and training of professional nurse volunteers to administer vaccines in school-based clinics. During the 1998-1999 school year, approximately 60 nurses in Durham, North Carolina, volunteered 300 hours of time to the program. In the first year, the cost of recruiting and training volunteers exceeded the savings from salaried school nurse time. However, savings are expected in future years. Other benefits of recruiting volunteers to administer vaccine include allowing school nurses to remain in their usual assignments, increasing awareness of the health department's mission and school health in the community, and improving collaboration among local health agencies.