The association between parental health beliefs and immunization status among children followed by private pediatricians

Importance of Population Education in Implementation of Compulsory Immunization Against Polyomyelitis in Children

Poliomyelitis is a contagious disease characterized by the appearance of fever, malaise, scratching in the throat, gastrointestinal signs, and after a few days the appearance of muscle paralysis, as well as respiratory and vasomotor disorders. Today, this disease is very rare, due to systemic active immunization. The aim of this study was to assess the level of knowledge and attitudes toward poliomyelitis and importance of immunization against it.

A specially designed survey questionnaire was used for interviewing purposes. Data analysis and processing were performed using a statistical data processing package (SPSS for Windows, version 20). A chi-square test was used from the statistical tests.

The educated profile of the respondents was as follows: medical sciences - 37 (50%), natural sciences and mathematics - 6 (8,1%), social sciences - 5 (6,8%), technical sciences - 19 (25,7%) and arts - 7 (9,5%). The study findings indicate a high level of awareness and knowledge of the population regarding polio, as well as good health awareness of the population about immunization i.e. polio vaccination. 34 respondents from the field of medical education answered the question exactly how the vaccine protects against the disease. In the field of natural mathematical sciences, a total of 3 gave the correct answer, which makes 50% of the total number of persons (6) in the mentioned field. In addition, majority of the study sample (70,3%) is aware that child should be vaccinated. Furthermore, 91,9% of respondents agree that education of parents regarding children vaccination is of great importance for whole community.

Based on findings of present study it can be concluded that efforts still need to be made in education of the wider population toward polio and the importance of vaccination. In addition to healthcare professionals, the entire community should participate in this strategic task.

Resources for assessing parents' vaccine hesitancy: a systematic review of the literature

The concept of Vaccine Hesitancy has begun to appear in the scientific landscape, referring to the reluctance of a growing proportion of people to accept the vaccination offer. A variety of factors were identified as being associated with vaccine hesitancy but there was no universal algorithm and currently there aren’t any established metrics to assess either the presence or impact of vaccine hesitancy. The aim of this study was to systematically review the published questionnaires evaluating parental vaccine hesitancy, to highlight the differences among these surveys and offer a general overview on this matter. This study offers a deeper perspective on the available questionnaires, helping future researches to identify the most suitable one according to their own aim and study setting.

Vaccination refusal. Autonomy and permitted coercion

The article presents vaccination obligation in relation to the existing or newly enacted legislation. Mass vaccinations and a wave of criticism they cause, forces us to reflect on the limits of medical intervention in the human body and the boundaries granted to individual's freedom and autonomy. This problem is universal and exists mainly in countries without mandatory vaccinations. Analyzing recent years, it must be underlined that a process in some legislatures has been introduced to enforce various forms of vaccination coercion. Although, refusing vaccinations has been treated liberally, the last wave of epidemics in the United States and Europe forced the creation of a different approach. Gradually in the USA, a duty (not a 'coercion') of vaccination is being enforced. Occurring epidemics, (e.g. measles) and dangers resulting from them, force authorities to violate the principle of autonomy and restrict individuals' freedoms regarding their own body. The article presents legal solutions relating to vaccinations in the United States and Europe i.e. administrative decisions imposing vaccinations, solutions conditioning social existence and financial penalties for not complying with this obligation and proposes a solution based on financial liability that will balance out patients' autonomy and public security.

"Nature Does Things Well, Why Should We Interfere?": Vaccine Hesitancy Among Mothers

Parents' decision to use vaccination services is complex and multi-factorial. Of particular interest are "vaccine-hesitant" parents who are in the middle of the continuum between vaccine acceptance and refusal. The objective of this qualitative longitudinal study was to better understand why mothers choose to vaccinate-or not-their newborns. Fifty-six pregnant mothers living in different areas of Quebec (Canada) were interviewed. These interviews gathered information on mothers' views about health and vaccination. Almost half of the mothers were categorized as vaccine-hesitant. A second interview was conducted with these mothers 3 to 11 months after birth to look at their actual decision and behavior concerning vaccination. Our results show the heterogeneity of factors influencing vaccine decision making. Although the majority of vaccine-hesitant mothers finally chose to follow the recommended vaccine schedule for their child, they were still ambivalent and they continued to question their decision.

Unknown Risks

Objective. This qualitative study of a select sample of vaccine-hesitant parents (VHPs) explores perceived and constructed personal judgments about the risks and uncertainties associated with vaccines and vaccine-preventable diseases (VPDs) and how these subjective risk judgments influence parents’ decisions about childhood vaccination. Methods. The study employed semistructured focus group interviews with 42 VHPs to elicit parents’ perceptions and thought processes regarding the risks associated with vaccination and nonvaccination, the sources of these perceptions, and their approach to decision making about vaccination for their children. Results. VHPs engage in various reasoning processes and tend to perceive risks of vaccination as greater than the risks of VPDs. At the same time, VHPs engage in other reasoning processes that lead them to perceive ambiguity in information about the harms of vaccination—citing concerns about the missing, conflicting, changing, or otherwise unreliable nature of information. Conclusions. VHPs’ refusal of vaccination may reflect their aversion to both the risk and ambiguity they perceive to be associated with vaccination. Mitigating this vaccine hesitancy likely requires reconstructing the risks and ambiguities associated with vaccination—a challenging task that requires providing parents with meaningful evidence-based information on the known risks of vaccination versus VPDs and explicitly acknowledging the risks that remain truly unknown.

Development of a survey to identify vaccine-hesitant parents: the parent attitudes about childhood vaccines survey

OBJECTIVE

To develop a survey to accurately assess parental vaccine hesitancy.

RESULTS

The initial survey contained 17 items in four content domains: (1) immunization behavior; (2) beliefs about vaccine safety and efficacy; (3) attitudes about vaccine mandates and exemptions; and (4) trust. Focus group data yielded an additional 10 survey items. Expert review of the survey resulted in the deletion of nine of 27 items and revisions to 11 of the remaining 18 survey items. Parent pretesting resulted in the deletion of one item, the addition of one item, the revision of four items, and formatting changes to enhance usability. The final survey contains 18 items in the original four content domains.

METHODS

An iterative process was used to develop the survey. First, we reviewed previous studies and surveys on parental health beliefs regarding vaccination to develop content domains and draft initial survey items. Focus groups of parents and pediatricians generated additional themes and survey items. Six immunization experts reviewed the items in the resulting draft survey and ranked them on a 1-5 scale for significance in identifying vaccine-hesitant parents (5 indicative of a highly significant item). The lowest third of ranked items were dropped. The revised survey was pretested with 25 parents to assess face validity, usability and item understandability.

CONCLUSIONS

The Parent Attitudes about Childhood Vaccines survey was constructed using qualitative methodology to identify vaccine-hesitant parents and has content and face validity. Further psychometric testing is needed.

Prevalence and predictors of immunization in a health insurance plan in a developing country

BACKGROUND

The aim of the present study was to describe rates and predictors of compliance with immunization schedule among children enrolled in the Health Insurance Plan of the American University of Beirut.

METHODS

Charts were reviewed for 774 children, and 154 parents underwent a randomly selected sample survey of demographic characteristics, parental behavior and attitudes, and health-care system variables.

RESULTS

The overall compliance rate was 49.9%. By age 4 years, 54.6% of children had taken the required vaccines on time. A total of 86% of parents whose children were non-compliant had recall bias. Age of the child (older), incorrect parental perception of immunization status, mother's low education, and use of other health-care facility, were associated with non-compliance.

CONCLUSIONS

Health education about vaccines should be promoted, with an emphasis on high-risk groups. Recall systems and other tools to increase immunization coverage may have an effective role, but in developing countries, aspects such as wide availability of computers and addresses need to be secured before such implementation.

European citizens' opinions on immunisation

As part of a larger study exploring how European citizens' balance issues of public and private interest and the extent to which they are prepared to accept State intervention on a range of public health issues, focus group participants were asked whether childhood immunisation should be a matter of parental choice or State compulsion. The question was debated in 66 (of 96) focus groups held across 16 European countries in 2003. Discussions focused on the concept of risk, trust in health professionals and the State, upholding the status quo, fears over vaccine safety and perceptions of infectious disease as a 'foreign threat'.

Parents concerned about vaccine safety: Differences in race/ethnicity and attitudes

BACKGROUND

Parental concerns about immunization safety have been covered widely in the media and on the Internet and have been correlated in some studies with under-immunization and the late receipt of immunizations.

OBJECTIVES

Phase 1: To (1) measure the prevalence of parents with immunization safety concern, specifically those with high-level concern, (2) determine demographic characteristics and attitudes typical for this subgroup of parents, and (3) determine factors that influence such parents, nevertheless, to have their children immunized. Phase 2: To further explore the racial/ethnic difference found in the first-phase results, specifically to compare the immunization attitudes of Hispanic (both black and white) and non-Hispanic black parents with those of non-Hispanic white parents.

METHODS

ConsumerStyles (2004) survey data of a nationwide panel of U.S. adults were analyzed in January 2006. In Phase 1, bivariate and logistic regression analyses were used to identify factors associated with parental concerns about immunization safety. In Phase 2, logistic regression was used to compare immunization attitudes among non-Hispanic black; Hispanic (both black and white); and non-Hispanic white parents.

RESULTS

The response rate was 62% (6207/10,000); analysis was restricted to the 2937 (47%) respondents who were parents with a child aged 18 years or younger; 634 (21%) responded with the highest level of concern, 5 on a 1-to-5-point scale. Demographics (Hispanic ethnicity/nonwhite race, low income, and less education) and negative attitudes toward immunization and the child's healthcare provider were significantly associated with high-level concern. Seventy-two percent of parents with high-level concern responded that the risk of a child getting a disease was their primary reason for having their child immunized, while 17% listed state laws requiring immunizations for school/daycare entry. Importantly, black parents were more likely than white parents to have negative attitudes toward immunizations and their child's healthcare provider.

CONCLUSIONS

One fifth of parents reported high-level concern with the safety of childhood immunizations. To prevent the erosion of childhood immunization rates, healthcare providers need to learn how to recognize and address these concerns.

Systematically reviewing qualitative studies complements survey design: an exploratory study of barriers to paediatric immunisations

BACKGROUND AND OBJECTIVES

Designing survey questions requires content expertise, awareness of previous qualitative literature, and piloting. We examined surveys addressing parental barriers to vaccinating children to determine if they comprehensively included themes identified in published qualitative studies.

METHODS

We performed a systematic literature search of 12 electronic databases and compared questions asked in eligible surveys identified to issues raised in qualitative studies. Issues included nine themes related to harm, six related to distrust, eight to issues of access, and three other issues.

RESULTS

The 29 eligible surveys failed to adequately address several important themes identified in qualitative studies. The number that failed to address the following themes were as follows: beliefs that vaccines cause diseases (n = 26); painful (n = 25); distrust of medical community (n = 28); communication problems with staff (n = 25); memories of their own or others adverse experiences (n = 28); fear of long-term effects (n = 26); belief the medical community does not understand adverse events associated with vaccines (n = 28); and parent's own lack of knowledge about diseases (n = 29).

CONCLUSIONS

Many surveys of parental barriers to immunization failed to address a number of important themes identified in qualitative studies. To the extent this is true in other areas, ensuring that investigators have conducted an adequate number and variety of qualitative studies, and systematically reviewing those studies, will improve surveys' content validity.

Confidence in vaccination: a parent model

Although vaccination has been heralded as one of the 10 greatest public health achievements, how parents differ in their views about vaccination is not well understood. A deeper understanding of these attitudes and beliefs may improve the effectiveness of vaccine communications. In this mailed survey of U.S. parents in January 2001 (return response rate 49%), parental confidence in vaccination was very high, although there was significant variation among parents. Using multivariate analyses to group and profile parents, 90% of parents (n=1820) were classified into one of four distinct parent groups: (1) "Vaccine Believer" parents who were convinced of the benefit of vaccination; (2) "Cautious" parents noteworthy for a high emotional investment in their child; (3) "Relaxed" parents characterized by a less involved parenting style and some skepticism about vaccines; and (4) "Unconvinced" parents distinguished by their distrust of vaccinations and vaccination policy. These findings suggest that messages that are customized to parents' attitudes and beliefs may improve their understanding and acceptance of vaccination.

Varicella vaccination for grades 4 and 5 students: from theory to practice

BACKGROUND

In 2002-2003, as part of a pilot project, varicella vaccination was offered to susceptible students in grades 4 and 5 in schools whose health services are provided by a local community services centre in Montréal. This immunization campaign was merged with the hepatitis B immunization programme.

OBJECTIVES

To calculate the proportion of grade 4 and 5 students susceptible to varicella; to calculate the proportion of susceptible students who agree to be vaccinated; to compare the proportion of susceptibles who agree to be vaccinated when varicella vaccination is offered with the first or the second dose of hepatitis B; and to assess whether a catch-up varicella immunization programme would affect the vaccine coverage of a concurrent hepatitis B vaccination programme.

METHODS

The proportions of susceptible students and of parents of susceptibles who consented to vaccination were calculated. The proportions of parents of susceptibles who consented to vaccination were compared for both immunization strategies: varicella vaccination given with the first or second dose of hepatitis B vaccine. Logistic regression was performed to identify possible associations between consent to varicella vaccination and the various variables collected. Rates of vaccine coverage against hepatitis B after two doses were compared for the years 2000-2001 and 2002-2003.

RESULTS

Of 3,856 registered students, 3,486 (90.4%) returned consent forms. Among the 3,272 students for whom information was available, 441 (13.5%) were susceptible, including 394 (89.3%) who consented to vaccination. The rates of vaccine coverage in the schools after two doses of hepatitis B vaccine were exactly the same for the 2000-2001 and 2002-2003 school years.

CONCLUSION

Varicella vaccination of susceptible grade 4 and 5 students associated with a coincident hepatitis B vaccination campaign can be performed without negative impact on the hepatitis B vaccination programme.

Parental vaccine safety concerns: results from the National Immunization Survey, 2001-2002

BACKGROUND

According to the 2002 National Immunization Survey (NIS), vaccination coverage with recommended vaccines among U.S. children aged 19 to 35 months remained near all-time highs. Sustaining this high coverage requires significant effort, including consideration of parental vaccine safety concerns that have led to decreasing coverage in other countries.

METHODS

The Parental Knowledge and Experiences module was administered to a random subset of NIS respondents from July 2001 to December 2002. The module included questions regarding attitudes toward vaccine safety and side effects, simultaneous vaccine administration, and acceptance of new vaccines. Multivariate logistic regression analyses examined associations between attitudes and up-to-date (UTD) vaccination coverage (four or more doses of diphtheria and tetanus toxoids and pertussis vaccine, three or more doses of poliovirus vaccine, one or more doses of any measles-containing vaccine, three or more doses of Haemophilus influenzae type b vaccine, and three or more doses of hepatitis B vaccine), while controlling for demographics.

RESULTS

Ninety-three percent of parents rated vaccines as safe, 6% as neither safe nor unsafe, and 1% as unsafe. After adjusting for demographics, parental safety belief was significantly associated with the child's vaccination status. For children whose parents believed vaccines are safe, the odds of being UTD were 2.9 times the odds of being UTD for children of parents who believed vaccines are unsafe (75% vs 53%, respectively). Children whose parents were neutral about the safety of vaccines had vaccination coverage similar to children whose parents believed vaccines are unsafe.

CONCLUSIONS

A significant association with vaccine coverage was found for a small group of parents with high vaccine safety concerns. Strategies focused on safety concerns may yield better protection for these children.

Underimmunization among children: effects of vaccine safety concerns on immunization status

OBJECTIVE

To examine the attitudes, beliefs, and behaviors of parents whose children were underimmunized with respect to > or =2 vaccines that have recently received negative attention, compared with parents whose children were fully immunized with respect to the recommended vaccines.

DESIGN

Case-control study.

SETTING

A sample of households that participated in the National Immunization Survey were recontacted in 2001.

MAIN OUTCOME MEASURE

Vaccination status was assessed. Case subjects were underimmunized with respect to > or =2 of 3 vaccines (diphtheria-tetanus-pertussis or diphtheria-tetanus-acellular pertussis, hepatitis B, or measles-containing vaccines), and control subjects were fully immunized.

RESULTS

The response rate was 52.1% (2315 of 4440 subjects). Compared with control households, case households were more likely to make 0 dollar to 30,000 dollars (adjusted odds ratio [OR]: 2.7; 95% confidence interval [CI]: 1.5-4.6) than at least 75,000 dollars, to have > or =2 providers (OR: 2.0; 95% CI: 1.3-3.1) than 1, and to have > or =4 children (OR: 3.1; 95% CI: 1.5-6.3) than 1 child. With control for demographic and medical care factors, case subjects were more likely than control subjects to not want a new infant to receive all shots (OR: 3.8; 95% CI: 1.5-9.8), to score vaccines as unsafe or somewhat safe (OR: 2.0; 95% CI: 1.2-3.4), and to ask the doctor or nurse not to give the child a vaccine for reasons other than illness (OR: 2.7; 95% CI: 1.2-6.1). Among case subjects, 14.8% of underimmunization was attributable to parental attitudes, beliefs, and behaviors.

CONCLUSIONS

Attitudes, beliefs, and behaviors indicative of vaccine safety concerns contribute substantially to underimmunization in the United States. Although concerns were significantly more common among parents of underimmunized children, many parents of fully immunized children demonstrated similar attitudes, beliefs, and behaviors, suggesting a risk to the currently high vaccination levels. Efforts to maintain and improve immunization coverage need to target those with attitudes/beliefs/behaviors indicative of vaccine safety concerns, as well as those with socioeconomic and health care access problems.

Parental knowledge, attitudes, and practices associated with not receiving hepatitis A vaccine in a demonstration project in Butte County, California

OBJECTIVE

To determine hepatitis A vaccination coverage and factors associated with not receiving hepatitis A vaccine among children.

METHODS

A random cluster sample survey was conducted of parents of children who attended kindergarten in Butte County, California, in 2000. Because of a history of recurrent epidemics, an aggressive hepatitis A vaccination program was ongoing during the time this study was conducted. Receipt of 1 or 2 doses of hepatitis A vaccine was studied.

RESULTS

Of 896 surveys sent, 648 (72%) were completed. The vaccination coverage for at least 1 dose of hepatitis A vaccine was 398 (62%) and for 2 doses was 272 (42%). Factors associated with not receiving the vaccine included lack of provider recommendation (vs having recommendation; odds ratio [OR]: 7.8; 95% confidence interval [CI]: 4.9-12.2), not having heard of the vaccine (OR: 2.4; 95% CI: 1.2-4.9), and parent's not perceiving child is likely to get hepatitis A (vs perceiving child might get disease; OR: 2.1; CI: 1.6-2.9).

CONCLUSIONS

Vaccination coverage among kindergartners did not reach high levels (ie, >90%), despite aggressive vaccination efforts in this community. Lack of provider recommendation and lack of parental awareness of hepatitis A vaccine were the 2 most significant factors associated with failure to receive vaccine. These findings will facilitate the development of vaccination strategies for communities in which hepatitis A vaccination is recommended.

Varicella vaccine: factors influencing uptake

BACKGROUND

In Canada, varicella vaccine is recommended but its uptake has been low. In contrast to most other recommended paediatric vaccines, this one is not currently provided free of charge in all provinces and territories in Canada.

OBJECTIVE

To evaluate the rate of health care provider offer of varicella vaccine to parents and the most important determinants of parental decision to accept the offer.

METHODS

A structured questionnaire was administered by phone interview to parents of children aged 14 to 17 months in the Quebec City area where the vaccine is not publicly funded.

RESULTS

Among the 477 participants, 37% had been offered the vaccine by their health care provider: 45% when the provider was a paediatrician and 29% for general practitioners or public health clinics. Only 13% of offers included information on the risk of varicella complications, the cost, efficacy and safety of the vaccine. By decreasing order of importance, the factors that positively increased parental decision to use varicella vaccine included: information on vaccine safety, a positive recommendation and a higher family income.

CONCLUSION

Despite a recommendation for universal vaccination, varicella vaccine is not broadly offered and few offers contain all the information both needed to elicit proper consent and correlated with a positive uptake.

Association between parents' preferences and perceptions of barriers to vaccination and the immunization status of their children: a study from Pediatric Research in Office Settings and the National Medical Association

OBJECTIVES

To assess the association between parents' perceptions of various barriers to vaccination and their preferences regarding specific strategies designed to reduce missed vaccination opportunities and the immunization status of their children and to estimate the overall contribution of the perception of barriers on underimmunization among children who are vaccinated in pediatricians' offices.

METHODS

As part of a nationwide study on the immunization status of children followed by practicing pediatricians, parents of children who were 8 to 35 months of age and seen consecutively at 177 participating practice sites completed a survey on health beliefs regarding the vaccination process. In addition to demographic information, parents were asked to identify the most difficult thing about obtaining immunizations, as well as their preferences regarding the maximum number of vaccine injections that should be administered to their child at 1 visit and for receiving a needed immunization during an office visit for a mild illness. Immunization data on study children were abstracted from the practice medical record, and specific survey responses for each parent were compared with the immunization status of his or her child at 8 months of age using chi2 tests. For parental health beliefs associated with immunization status by bivariate analyses, the relative risks for underimmunization and population-attributable risk percentages of each belief were calculated after potentially confounding variables were adjusted for.

RESULTS

Immunization data were collected on 13 520 children; 13 516 parents responded to at least 1 question regarding vaccination health beliefs. Two thirds of the responding parents indicated that their child should receive no more than 2 immunizations at 1 visit. However, there was no difference in the preferred maximum number of vaccines between parents of children who were fully immunized at 8 months of age and those of underimmunized children. Similarly, there was no difference in a stated preference for receiving a needed immunization during an illness visit. Overall, 74% of respondents indicated that there was "nothing" difficult about obtaining vaccines for their children. The most commonly cited barrier was concern about the side effects of vaccines, identified by 22.6% of parents. However, this barrier was not associated with immunization status. Each of the remaining barriers-including the confusing vaccination schedule, expense of vaccines, the inconvenience of the vaccination process, having a child who was often too ill to receive vaccines, religious objections, and other identified barriers-was statistically associated with immunization status, with adjusted relative risks for underimmunization ranging from 1.42 to 3.04. However, because each of these barriers was identified as important by <5% of parents, the population-attributable risk percentage for each was < or =2.5%. Overall, it was estimated that parental perception of barriers associated with immunization status accounts for 8.0% of the underimmunization observed among children who are vaccinated in the offices of primary care pediatricians.

CONCLUSIONS

Parental preferences regarding vaccination practices designed to reduce missed opportunities were not associated with the immunization status of their children. Although several barriers to vaccination were associated with immunization status, individual barriers were identified by a small minority of parents. Overall, parental perceptions of barriers to vaccination do not seem to be a significant cause of underimmunization in this population of children.

Reducing geographic, racial, and ethnic disparities in childhood immunization rates by using reminder/recall interventions in urban primary care practices

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.

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.

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).

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).

STUDY PARTICIPANTS

Three separate cohorts of 0- to 2-year-old children were assessed-those residing in the county in 1993, 1996, and 1999.

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. 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 (>500 from the suburbs and >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.

MAIN OUTCOME MEASURES

Immunization rates at 12 and 24 months for recommended vaccines (4 diphtheria-tetanus-pertussis:3 polio:1 measles-mumps-rubella: > or =1 Haemophilus influenzae type b on or after 12 months of age).

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.

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.

Impact of vaccine cost and information about complications of varicella on parental decision regarding varicella vaccine

BACKGROUND

The influence of providing information about complications of disease and vaccine cost on parental decision to vaccinate against varicella was assessed.

METHOD

During telephone interviews of 330 parents of infants aged 9 months, parents were asked if they would agree to have their child vaccinated and were presented information first about varicella complications and then about cost of the vaccine.

RESULTS

When complications were explained but information about cost was not, 94% of parents were favourable toward having their child vaccinated. When complications were not explained but cost was presented, this percentage was only 34%. When both cost and complications were presented, 60% of parents were favourable toward the vaccine.

INTERPRETATION

In improving receptivity towards varicella vaccine, parents should always be presented data regarding varicella complications by their health care provider.

[Lack of conviction about vaccination in certain Quebec vaccinators]

A questionnaire was mailed to all vaccinators in Quebec in 1998. The objective of this survey was to document vaccinators' attitudes, knowledge, and practices related to vaccination. Vaccinators generally believe in the security, efficacy and usefulness of vaccines given to young children. However, 41% of nurses do not fully agree with these opinions. More than 94% of pediatricians completely disagree that "certain practices (homeopathy, good eating habits and a healthy lifestyle) can eliminate the need for vaccination", compared with 85% of general practitioners and only 60% of nurses. Less than 25% of doctors recall children who are late in getting their immunizations; approximately 45% of vaccinators are in complete agreement with simultaneous injections of two vaccines; many circumstances are incorrectly seen as contra indications for vaccination. Public health authorities should target systematic interventions towards vaccinators to improve this situation and to increase nurses' conviction regarding the benefits of vaccination.

Opinions of Quebec parents and vaccinators on the usefulness of chickenpox vaccine

BACKGROUND

A chickenpox vaccine was recently licensed in Canada. Because this vaccine has caused some controversy within the health care profession, studies among Quebec parents and vaccine providers were carried out, surveying their opinions concerning chickenpox vaccination.

METHODS

Three studies among parents of preadolescents, parents of two-year-old children completely or incompletely vaccinated and vaccinators were completed. The studies asked for opinions concerning the usefulness of vaccinating children against chickenpox.

RESULTS

The majority of parents of preadolescents (56%), and parents of two-year-old children completely (64%) and incompletely vaccinated (60%) favoured chickenpox vaccination. Among vaccinators, 53% of paediatricians, 37% of general practitioners and 33% of nurses considered universal vaccination of young children to be useful. A greater proportion of health care professionals were in favour of a policy of vaccinating groups at risk, such as susceptible adolescents (86%, 75% and 58%, respectively). There was a positive association between the perceived severity of chickenpox and the potential usefulness of the vaccine.

CONCLUSION

Quebec parents are more favourably disposed to chickenpox vaccine than vaccine providers. In contrast, strategies targeting susceptible groups would be generally well received by health care professionals. A considerable amount of work will be needed to convince vaccinators of the benefits of a universal childhood vaccination against chickenpox.

[Lack of conviction about vaccination in certain Quebec vaccinators]

A questionnaire was mailed to all vaccinators in Quebec in 1998. The objective of this survey was to document vaccinators' attitudes, knowledge, and practices related to vaccination. Vaccinators generally believe in the security, efficacy and usefulness of vaccines given to young children. However, 41% of nurses do not fully agree with these opinions. More than 94% of pediatricians completely disagree that "certain practices (homeopathy, good eating habits and a healthy lifestyle) can eliminate the need for vaccination", compared with 85% of general practitioners and only 60% of nurses. Less than 25% of doctors recall children who are late in getting their immunizations; approximately 45% of vaccinators are in complete agreement with simultaneous injections of two vaccines; many circumstances are incorrectly seen as contra indications for vaccination. Public health authorities should target systematic interventions towards vaccinators to improve this situation and to increase nurses' conviction regarding the benefits of vaccination.

Insights on immunizations from caregivers of children receiving Medicaid-funded services

ISSUES AND PURPOSE

Despite numerous programs aimed at improving immunization rates among American children, under-immunization remains a significant problem. This study was conducted to gain insight into parents'/guardians' knowledge and attitudes regarding childhood immunizations.

DESIGN AND METHODS

Thirteen African-American mothers and grandmothers participated in semistructured, audiotaped focus-group interviews.

RESULTS

Four major themes emerged: health knowledge and beliefs about immunizations, system barriers that impede obtaining immunizations, facilitators that enhance obtaining immunizations, and suggestions for change.

PRACTICE IMPLICATIONS

Immunizations are one of the most important health advantages available to children. Therefore, nurses must become aware of the problem of underimmunization and work to address some of the concerns caregivers have identified in this study. The health and lives of the nation's children depend on it.

Low-income mothers' perceptions of health in their children with growth delay

ISSUES AND PURPOSE

Parental characteristics are the strongest predictor of poor health for children. This study examined how low-income mothers of children with growth delay define health for their children, and the behaviors they use to monitor their children's health.

DESIGN AND METHODS

Naturalistic design using Kleinman's Explanatory Model approach and interviews with 22 mothers.

RESULTS

Mothers consider nutritious food as a primary contributor to their children's health and consider healthy children to be chubby. Other indicators of health include children's energy levels, provision of nutritious food, and physical and mental activity balanced with rest.

PRACTICE IMPLICATIONS

A mother's explanatory model of health for her child can guide health promotion targeted to the mother's beliefs.

Parent reports on willingness to accept childhood immunizations during urgent care visits

OBJECTIVES

To 1) describe whether parents would be willing to accept childhood immunizations at urgent care visits; and 2) identify predictors of parents' willingness to accept childhood immunizations at urgent care visits.

DESIGN AND PARTICIPANTS

Cross-sectional telephone survey of parents of children aged 18 to 24 months who were underimmunized according to a computerized immunization tracking system and who had recently made an urgent care visit in a regional group-model health maintenance organization in Northern California. Chart review was conducted to confirm immunization status and to identify contraindications to vaccination.

RESULTS

Of the 424 eligible participants, 351 (83%) completed interviews. Children with contraindications to vaccination and children who were actually up-to-date at the time of the urgent care visit were excluded, leaving 263 families in the final analysis. Among these parents, 75% said they would have been willing to have their child immunized at the urgent care visit in question if the physician had suggested it. An additional 11% said they would have accepted vaccination if the physician told them that the shot would be safe and strongly encouraged them to accept it. Overall, 86% reported they theoretically would have accepted an immunization during the urgent care visit. In the multivariate analysis, the strongest predictors of stated willingness to accept shots at the urgent care visit were the parent: 1) not being aware that their child was underimmunized (odds ratio [OR] 3.5, 95% confidence interval [CI], 1.6-7.7); 2) perceiving that the child was not very sick at the visit (OR 1.8, 95% CI, 1.1-3.0); 3) being less concerned about the risk of shots (OR 1.8, 95% CI, 1.2-2.5); and 4) being of nonwhite race (OR 3.6, 95% CI, 1.6-7.7). Income and education were not significantly associated with reported willingness to accept immunization.

CONCLUSIONS

We conclude that most parents of underimmunized toddlers report being willing to accept immunizations during urgent care visits if the clinician recommends it. More effective ways of alerting providers in urgent care settings when immunizations are due, such as indications on a chart or registration form, hold promise for improving immunization coverage rates.