Factors Influencing Mexican Women's Decisions to Vaccinate Daughters Against HPV in the United States and Mexico

Acculturation and Health Beliefs: Interactions Between Host and Heritage Culture Underlie Latina/o Caregivers' Beliefs About HPV Vaccination

This study examined the interactive effects of acculturation (host culture acquisition) and enculturation (heritage culture retention) on Latina/o caregivers' beliefs about their child completing the human papillomavirus vaccine series. Participants were 161 caregiver-child dyads from Florida. Using multiple regression, caregiver knowledge and health beliefs (perceived threat, benefits, barriers, subjective norms, and self-efficacy) about series completion were predicted from caregivers' scores on acculturation, enculturation, and their interaction, controlling for sociodemographics. Acculturation and enculturation interacted to predict knowledge, benefits, barriers, and self-efficacy. Caregivers with high acculturation scores generally supported series completion, regardless of their enculturation score. However, when acculturation was low, caregivers who retained more (vs. less) of their heritage culture were more knowledgeable and held more favorable beliefs about series completion. Findings highlight the importance of independently assessing acculturation and enculturation in Latina/o immigrant populations. Overlooking enculturation may lead to incomplete conclusions about acculturation and health.

HPV vaccine uptake among daughters of Latinx immigrant mothers: Findings from a cluster randomized controlled trial of a community-based, culturally relevant intervention

OBJECTIVE

We examined the efficacy of a culturally relevant, community-based HPV vaccination intervention among Latinx immigrant mothers with daughters aged 9-12 in Alabama.

METHODS

We conducted a cluster-randomized controlled trial with "place of residence" (e.g., apartment complexes, trailer parks) as the unit of randomization that evaluated two interventions: 1) promotion of HPV vaccination and 2) promotion of healthy eating and appropriate nutrition label interpretation. Identical baseline/post/7-month follow up questionnaires were completed by all participants and both interventions consisted of four group sessions and one individual session. A total of 40 locations were randomized with 317 mother-daughter dyads enrolled in the study between May 2013 and October 2017.

RESULTS

A total of 278 mother-daughter dyads met full eligibility and initiated the intervention/control participation. Retention rate overall was 93.2% (92.6% for the intervention arm and 93.7% for the control arm). Daughters in the intervention arm were significantly more likely to receive one, two, and three doses of HPV vaccine than daughters in the control arm p < 0.001). In multivariate analyses, mothers in the intervention arm had a six times greater odds of vaccinating daughters with the first dose (OR = 5.96, 95% CI: 3.38, 10.49), eight times greater odds of vaccinating daughters with the second dose (OR = 8.09, 95% CI: 4.0, 16.35), and more than 16 times greater odds of completing the three-dose HPV vaccine series than mothers in the control arm after adjusting for mother's age, time in the U.S., income, and daughter's health insurance status (OR = 16.5, 95% CI: 5.73, 47.48). Only perceived risk of their daughters' future HPV infection remained significant as a predictor of three-dose HPV vaccination completion (OR = 0.69, 95% CI: 0.23, 2.1).

CONCLUSIONS

A theory-driven, culturally-relevant intervention developed through extensive formative assessments in collaboration with community members can effectively promote HPV vaccination among 9-12 years of age daughters of Latina immigrants.

Beliefs around childhood vaccines in the United States: A systematic review

BACKGROUND

While childhood vaccines are safe and effective, some parents remain hesitant to vaccinate their children, which has led to outbreaks of vaccine preventable diseases. The goal of this systematic review was to identify and summarize the range of beliefs around childhood vaccines elicited using open-ended questions, which are better suited for discovering beliefs compared to closed-ended questions.

METHODS

PubMed, Embase, and PsycINFO were searched using keywords for childhood vaccines, decision makers, beliefs, and attitudes to identify studies that collected primary data using a variety of open-ended questions regarding routine childhood vaccine beliefs in the United States. Study designs, population characteristics, vaccine types, and vaccine beliefs were abstracted. We conducted a qualitative analysis to conceptualize beliefs into themes and generated descriptive statistics.

RESULTS

Of 1727 studies identified, 71 were included, focusing largely on parents (including in general, and those who were vaccine hesitant or at risk of hesitancy). Seven themes emerged: Adverse effects was most prominent, followed by mistrust, perceived lack of necessity, pro-vaccine opinions, skepticism about effectiveness, desire for autonomy, and morality concerns. The most commonly described beliefs included that vaccines can cause illnesses; a child's immune system can be overwhelmed if receiving too many vaccines at once; vaccines contain harmful ingredients; younger children are more susceptible to vaccine adverse events; the purpose of vaccines is profit-making; and naturally developed immunity is better than that acquired from vaccines. Nearly a third of the studies exclusively assessed minority populations, and more than half of the studies examined beliefs only regarding HPV vaccine.

CONCLUSIONS

Few studies used open-ended questions to elicit beliefs about vaccines. Many of the studies that did so, focused on HPV vaccine. Concerns about vaccine safety were the most commonly stated beliefs about childhood vaccines, likely because studies were designed to capture barriers and challenges to vaccination.

Predictors of Human Papillomavirus Vaccine Completion Among Low-Income Latina/o Adolescents

PURPOSE

The purpose of this longitudinal study was to identify individual and interpersonal factors associated with human papillomavirus (HPV) vaccine series completion in a sample of low-income Latina/o adolescent girls and boys.

METHODS

Caregiver-adolescent dyads (N = 161) were recruited from a rural Federally Qualified Health Center in southwest Florida when the adolescent (aged 11-17 years) received the first dose of HPV vaccine. Dyads completed a baseline assessment that measured demographic and cultural characteristics, past medical history, provider-patient communication, HPV knowledge, health beliefs about completing the series, and the adolescent's experience receiving the first dose. Using multivariable logistic regression, we identified caregiver- and adolescent-related factors associated with series completion (receipt of three doses of HPV vaccine within 1 year of initiation) as indicated in the adolescent's medical record and state immunization registry.

RESULTS

Within 1 year of initiation, 57% (n = 92) completed the three-dose series. Missed opportunities for completion were observed for 20% of the sample who returned to the clinic. Caregiver-related predictors of completion included education, self-efficacy to complete the series, and knowledge of the required number of doses. Adolescent-related predictors included age, influenza vaccination within the past 2 years, having a chronic medical condition, reason for the baseline visit, and receipt of written information about HPV vaccination from a health care provider.

CONCLUSIONS

Findings highlight important opportunities for improving completion of the HPV vaccine series among Latina/o adolescents. Intervention efforts should involve health care providers and parent-adolescent dyads and prioritize evidence-based strategies for reducing missed opportunities for series completion.

Exploring HPV Knowledge, Awareness, Beliefs, Attitudes, and Vaccine Acceptability of Latino Fathers Living in the United States: An Integrative Review

To conduct an integrative review to identify and synthesize studies exploring human papillomavirus (HPV) knowledge, awareness, beliefs, attitudes, and acceptability of the HPV vaccine among Latino fathers living in the United States. The review methodology was informed by those developed by Whittemore and Knafl, which allow for the inclusion of qualitative, quantitative, and mixed methods studies. Using the preferred reporting items for systematic reviews meta-analyses guidelines, five electronic databases (PubMed, Medline, PsycINFO, CINAHL, Science Direct) were searched for peer-reviewed, full-text studies published in English with samples that included Latino fathers and examined knowledge, awareness, beliefs, attitudes about the HPV and the HPV vaccines. Studies that did not provide information on the inclusion of fathers in the sample were excluded. Identified eligible studies were analyzed and synthesized using the matrix method. Eleven eligible studies were identified. Most (n = 10) included mothers and fathers. One study included only fathers, and this study determined that although fathers held positive attitudes toward the HPV vaccine, a notable number of participants were unsure of or had not formed an opinion about the HPV vaccine. Fathers felt that a recommendation from their child's physician would impact whether they vaccinated their child. Moreover, of the ten studies including both parents, only two specifically compared fathers' and mothers' knowledge and awareness about the HPV and vaccine acceptability. These two studies determined that fathers were less aware of the HPV and had lower HPV vaccine-related knowledge than mothers. Nevertheless, all of the 11 examined studies, found moderate to high acceptability of the HPV vaccine among Latino parents despite uncertainty about possible vaccine risks and costs. Only 11 studies were identified that included Latino fathers. Of these studies, only one was conducted exclusively with Latino fathers and two compared fathers and mothers. Additional research focusing on Latino fathers is needed given the central role of the family in the Latino culture and the shared role fathers and mothers have in decision-making related to their children's health.

Clinician offering is a key factor associated with HPV vaccine uptake among Mexican mothers in the USA and Mexico: a cross-sectional study

OBJECTIVE

To compare the knowledge, beliefs, and practices regarding HPV vaccination among mothers of vaccine-eligible girls in Mexico and the USA.

METHODS

Similar samples of Mexican mothers with vaccine-eligible daughters were surveyed at two clinics in Cuernavaca, Morelos, from July to October 2012 (n = 200) and at two clinics in Oxnard, California, from August to November 2013 (n = 200).

RESULTS

Although mothers in the USA had less knowledge and more negative attitudes toward the vaccine than their counterparts in Mexico, vaccine uptake rates were higher in the USA (49% vs. 40%). US mothers were more likely to have discussed and been offered the HPV vaccine by a clinician than mothers in Mexico. In multivariate analyses, having been offered the HPV vaccine was the most important predictor of vaccine uptake.

CONCLUSIONS

Our results suggest that healthcare access or other system, clinic, or provider factors are the main drivers of vaccine receipt in this binational sample of Mexican mothers. Interventions and programs that encourage clinicians to offer the HPV vaccine should be developed to increase vaccine uptake in both countries.

HPV Knowledge and Vaccine Initiation Among Mexican-Born Farmworkers in North Carolina

The human papilloma virus (HPV) vaccine is an effective but underused cancer prevention tool. This study assessed knowledge of HPV and HPV vaccine initiation among Mexican-born farmworkers in North Carolina. Interviewer-administered questionnaires were conducted with 100 Latino farmworkers and 100 nonfarmworker Latino North Carolina residents in 2015 as part of an ongoing community-based participatory research project. Farmworkers had low levels of knowledge about HPV and the HPV vaccine. They had a similar amount of HPV and HPV vaccine knowledge compared to nonfarmworkers. Farmworkers and nonfarmworkers learned about the HPV vaccine from different sources. Adolescent children of farmworkers and nonfarmworkers had low HPV vaccine initiation. However, for children living in the United States with farmworker parents, vaccine initiation was high. To prevent HPV-related cancers and improve health equity, interventions are needed in order to increase HPV education and vaccine initiation among children of Mexican-born farmworkers and nonfarmworkers. Public health programs should look for partners outside the traditional health care setting to reach underserved populations. Other key strategies include promoting catch-up vaccines, improving patient-provider communication, and providing case management services.