Article

Human papillomavirus vaccine coverage among immigrant adolescents in Alberta: a population-based cohort study

Authors:
To read the full-text of this research, you can request a copy directly from the authors.

Abstract

Background Little is known about human papillomavirus (HPV) vaccination among immigrant children in Canada. We conducted a study in Alberta, Canada to assess HPV vaccine coverage among school-aged immigrant children compared with non-immigrant children. Methods This cohort study analysed population-based linked administrative health data to measure HPV vaccine coverage for 346 749 school-aged children, including 31 656 immigrants. Coverage was examined at 12 y of age from 2008 to 2018 for females, and from 2014 to 2018 for males and both sexes combined; vaccine series completion was considered receipt of three doses, with initiation (one or more dose) as a supplementary analysis. Multivariable logistic regression examined the association of vaccine coverage with migration status, adjusting for sociodemographic variables. Results Between 2014 and 2018, HPV vaccination coverage among immigrant children at age 12 y was significantly higher (52.58%) compared with non-immigrant children (47.41%). After controlling for place of residence, income quintile, biological sex and year, immigrant children had 1.10 greater odds (95% confidence interval 1.07 to 1.14) of receiving three doses of HPV vaccine compared with non-immigrant children. Immigrants from Asia and Africa had the highest coverage (60.25–68.78%), while immigrants from North America, Oceania and South America had the lowest coverage (39.97–48.36%). Conclusions It is encouraging that immigrant children had higher HPV vaccine coverage compared with non-immigrants. Among immigrants, routine immunization promotion strategies should be tailored based on the country of origin.

No full-text available

Request Full-text Paper PDF

To read the full-text of this research,
you can request a copy directly from the authors.

ResearchGate has not been able to resolve any citations for this publication.
Article
Full-text available
Human Papillomavirus (HPV) is associated with six cancers and widespread immunization with HPV vaccine could reduce the number of these cancers. Although HPV vaccination rates are available for the state of Illinois and the city of Chicago, data are limited for specific areas. We assessed rates of HPV vaccine initiation and completion among adolescents in central Illinois and identified factors associated with initiation and completion. This was a retrospective study of adolescents (aged 11–17) who receive care at the Southern Illinois University Medicine Department of Pediatrics. The outcome variables were HPV vaccination initiation (receipt of ≥ 1 dose) and completion (receipt of ≥ 2 or 3 doses, depending on age of initiation). Multivariable logistic regressions were used to identify factors associated with HPV vaccine uptake. A total of 9,351 adolescents were included in the study. Overall, HPV vaccine initiation was 46.2% and completion was 24.7%. In adjusted analyses, adolescents residing in rural areas were 38% and 24% less likely to initiate (aOR = 0.62; 95 CI: 0.54–0.72) and complete (aOR = 0.76; 95 CI: 0.65–0.88) the HPV vaccine compared with those residing in urban areas. Similarly, adolescents were less likely to initiate and complete the HPV vaccine if they were not update to date on the hepatitis A, meningococcal, or Tdap vaccinations. HPV vaccination rates in central Illinois were low, and far below the national average and the Illinois state average. Future directions should include interventions to increase HPV vaccine uptake, particularly in rural areas.
Article
Full-text available
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.
Article
Full-text available
Background: Our understanding about knowledge, attitudes and perceptions (KAP) of immigrants regarding human papillomavirus (HPV) vaccine is poor. We present the first systematic review on KAP of immigrant parents towards HPV vaccine offered to their children. Methods: Major bio-medical databases (Medline, Embase, Scopus and PsycINFO) were searched using a combination of keyword and database-specific terms. Following identification of studies, data were extracted, checked for accuracy, and synthesised. Quality of the studies was assessed using the Newcastle Ottawa Scale and the Joanna Briggs Institute Qualitative Assessment tool. Results: A total of 311 titles were screened against eligibility criteria; after excluding 292 titles/full texts, 19 studies were included. The included studies contained data on 2206 adults. Participants' knowledge was explored in 16 studies and ranged from none to limited knowledge. Attitudes about HPV vaccination were assessed in 13 studies and were mixed: four reported negative attitudes fearing it would encourage sexual activity; however, this attitude often changed once parents were given vaccine information. Perceptions were reported in 10 studies; most had misconceptions and concerns regarding HPV vaccination mostly influenced by cultural values. Conclusion: The knowledge of HPV-related diseases and its vaccine among immigrant parents in this study was generally low and often had negative attitude or perception. A well-designed HPV vaccine health educational program on safety and efficacy of HPV vaccination targeting immigrant parents is recommended.
Article
Full-text available
Problem/condition: Previous reports have shown that persons living in nonmetropolitan (rural or urban) areas in the United States have higher death rates from all cancers combined than persons living in metropolitan areas. Disparities might vary by cancer type and between occurrence and death from the disease. This report provides a comprehensive assessment of cancer incidence and deaths by cancer type in nonmetropolitan and metropolitan counties. Reporting period: 2004-2015. Description of system: Cancer incidence data from CDC's National Program of Cancer Registries and the National Cancer Institute's Surveillance, Epidemiology, and End Results program were used to calculate average annual age-adjusted incidence rates for 2009-2013 and trends in annual age-adjusted incidence rates for 2004-2013. Cancer mortality data from the National Vital Statistics System were used to calculate average annual age-adjusted death rates for 2011-2015 and trends in annual age-adjusted death rates for 2006-2015. For 5-year average annual rates, counties were classified into four categories (nonmetropolitan rural, nonmetropolitan urban, metropolitan with population <1 million, and metropolitan with population ≥1 million). For the trend analysis, which used annual rates, these categories were combined into two categories (nonmetropolitan and metropolitan). Rates by county classification were examined by sex, age, race/ethnicity, U.S. census region, and cancer site. Trends in rates were examined by county classification and cancer site. Results: During the most recent 5-year period for which data were available, nonmetropolitan rural areas had lower average annual age-adjusted cancer incidence rates for all anatomic cancer sites combined but higher death rates than metropolitan areas. During 2006-2015, the annual age-adjusted death rates for all cancer sites combined decreased at a slower pace in nonmetropolitan areas (-1.0% per year) than in metropolitan areas (-1.6% per year), increasing the differences in these rates. In contrast, annual age-adjusted incidence rates for all cancer sites combined decreased approximately 1% per year during 2004-2013 both in nonmetropolitan and metropolitan counties. Interpretation: This report provides the first comprehensive description of cancer incidence and mortality in nonmetropolitan and metropolitan counties in the United States. Nonmetropolitan rural counties had higher incidence of and deaths from several cancers related to tobacco use and cancers that can be prevented by screening. Differences between nonmetropolitan and metropolitan counties in cancer incidence might reflect differences in risk factors such as cigarette smoking, obesity, and physical inactivity, whereas differences in cancer death rates might reflect disparities in access to health care and timely diagnosis and treatment. Public health action: Many cancer cases and deaths could be prevented, and public health programs can use evidence-based strategies from the U.S. Preventive Services Task Force and Advisory Committee for Immunization Practices (ACIP) to support cancer prevention and control. The U.S. Preventive Services Task Force recommends population-based screening for colorectal, female breast, and cervical cancers among adults at average risk for these cancers and for lung cancer among adults at high risk; screening adults for tobacco use and excessive alcohol use, offering counseling and interventions as needed; and using low-dose aspirin to prevent colorectal cancer among adults considered to be at high risk for cardiovascular disease based on specific criteria. ACIP recommends vaccination against cancer-related infectious diseases including human papillomavirus and hepatitis B virus. The Guide to Community Preventive Services describes program and policy interventions proven to increase cancer screening and vaccination rates and to prevent tobacco use, excessive alcohol use, obesity, and physical inactivity.
Article
Background Migrants, a population vulnerable to communicable diseases, face multiple barriers in access to immunization programs. Individual studies suggest that they suffer immunization inequity compared to non-migrants, but the gap in vaccination has not been quantified. This systematic review assessed quantitatively the level of vaccination coverage among migrants, in comparison with non-migrants, collating the published literature. Methods Review protocol was prospectively registered (PROSPERO CRD42021228061). A literature search without language restrictions was conducted in PubMed, Scopus and Web of Science, from database inception to February 2021. This review included observational studies that provided the vaccination rates among migrant and non-migrant groups. Study quality was assessed using Newcastle-Ottawa scale. Data were synthesized pooling data from individual studies to generate summary odds ratio (OR) with 95% confidence interval (CI) using random effects model, assessing heterogeneity with I² statistic and publication bias with funnel asymmetry analysis. Findings There were 44 relevant studies (7,937,996 participants). Overall risk of bias was low in 13 (30%), moderate in 22 (50%) and high in 9 (20%) studies. Point estimates of individual ORs showed lower vaccination coverage among migrants in 36 of 39 meta-analyzable studies. Overall, the odds of vaccination coverage among migrants were lower compared to non-migrants (7,375,184 participants; summary OR 0.50; 95% CI 0.37–0.66; I² 99.9%). There was no funnel asymmetry. Interpretation Migrants are half as often vaccinated compared to non-migrants. Public health prevention programs need to prioritize vaccination equity, not just to protect migrants but also to protect the host communities.
Article
Background Studies of vaccine-preventable disease (VPD) burden and immunisation coverage among migrants compared to locally-born populations present a mixed picture on whether migrants experience disproportionate VPD rates and immunisation inequities, and what the associated factors are. We conducted a scoping review to explore differences in VPD burden and immunisation coverage between migrants and non-migrants worldwide. Methods We followed Arksey and O’Malley’s five stage scoping review method. We searched for empirical, peer-reviewed literature published in English that compared VPD burden and/or immunisation coverage between migrant and non-migrant groups published between 2006 and 2016 using MEDLINE, EMBASE, CINAHL, Sociological Abstracts, and Web of Science databases. Relevant information from the studies were charted in Microsoft Excel and results were summarised using a descriptive analytical method. Results Forty-five studies met the inclusion criteria (n = 13 reporting on VPD burden; n = 27 reporting on immunisation rates; n = 5 reporting on both). Studies that met the criteria only reported findings from high income countries or high-middle income countries. Accounting for results that were presented according to separate ethnic migrant sub-groups, almost all of the studies comparing VPD burden (n = 17, 89%) reported higher burden among migrants compared to non-migrants, while most studies measuring immunisation rates (n = 26, 70%) noted lower rates among migrants. Numerous factors contributed to these findings, including the influence of migrants’ nativity, socio-economic status, migration background, generation status, residential duration, cultural/personal beliefs, language proficiency and healthcare utilisation. Conclusions Considerable variability of study foci and methodologies limited our ability to make definitive conclusions and comparisons, but the literature suggests that migrant populations generally experience higher VPD burden and lower immunisation rates. The findings highlight a number of important considerations for future research and immunisation programme planning. Future research should explore factors that influence VPD burden and immunisation rates, and strategies to overcome barriers to vaccine uptake among migrants.
Article
Over 43 million immigrants live in the United States (U.S.). Foreign-born populations experience multiple disparities related to human papillomavirus (HPV), including higher cervical cancer mortality rates, yet little research has examined the prevalence of genital HPV infection among this population. We used data from 1,822 women and 1,622 men ages 20–59 in the U.S. who participated in the 2013–2014 National Health and Nutrition Examination Survey (NHANES). Participants reported their nativity status (foreign- vs. U.S.-born) and provided bio-specimens for HPV testing. We assessed nativity differences in the prevalence of three HPV infection outcomes (any HPV type, high-risk HPV type, and vaccine-preventable HPV type) using weighted logistic regression. Overall, 40% of women and 46% of men tested positive for any type of HPV. Compared to women born in the U.S., foreign-born women had a lower prevalence of infection with any HPV type (32% vs. 42%, p < .01). Compared to men born in the U.S., foreign-born men had a lower prevalence of all HPV infection outcomes (any type: 39% vs. 48%; high-risk: 22% vs. 34%; vaccine-preventable: 12% vs. 16%; all p < .05). Multivariable models attenuated several of these differences, though foreign-born men had lower odds of infection with a high-risk HPV type (OR = 0.75; 95% CI: 0.60–0.93, p < .01) after adjusting for covariates. Although lower than among their U.S.-born counterparts, HPV infection is prevalent among foreign-born women and men in the U.S. Findings can help inform strategic communication campaigns and targeted HPV vaccination and cervical cancer screening efforts for immigrant populations.
Article
Background: An overall increase has been reported in vaccination rates among adolescents during the past decade. Studies of vaccination coverage have shown disparities when comparing foreign-born and U.S.-born populations among children and adults; however, limited information is available concerning potential disparities in adolescents. Methods: The National Immunization Survey-Teen is a random-digit-dialed telephone survey of caregivers of adolescents aged 13-17 years, followed by a mail survey to vaccination providers that is used to estimate vaccination coverage among the U.S. population of adolescents. Using the National Immunization Survey-Teen data, we assessed vaccination coverage during 2012-2014 among adolescents for routinely recommended vaccines for this age group (≥1 dose tetanus and diphtheria toxoids and acellular pertussis [Tdap] vaccine, ≥1 dose quadrivalent meningococcal conjugate [MenACWY] vaccine, ≥3 doses human papillomavirus [HPV] vaccine) and for routine childhood vaccination catch-up doses (≥2 doses measles, mumps, and rubella [MMR] vaccine, ≥2 doses varicella vaccine, and ≥3 doses hepatitis B [HepB] vaccine). Vaccination coverage prevalence and vaccination prevalence ratios were estimated. Results: Of the 58,090 respondents included, 3.3% were foreign-born adolescents. Significant differences were observed between foreign-born and U.S.-born adolescents for insurance status, income-to-poverty ratio, education, interview language, and household size. Foreign-born adolescents had significantly lower unadjusted vaccination coverage for HepB (89% vs. 93%), and higher coverage for the recommended ≥3 doses of HPV vaccine among males, compared with U.S.-born adolescents (22% vs. 14%). Adjustment for demographic and socioeconomic factors accounted for the disparity in HPV but not HepB vaccination coverage. Conclusions: We report comparable unadjusted vaccination coverage among foreign-born and U.S.-born adolescents for Tdap, MenACWY, MMR, ≥2 varicella. Although coverage was high for HepB vaccine, it was significantly lower among foreign-born adolescents, compared with U.S.-born adolescents. HPV and ≥2-dose varicella vaccination coverage were low among both groups.
Article
Refugee children and their families may experience impaired access to healthcare; therefore, we aimed to uncover human papillomavirus (HPV) immunization patterns among a large group of refugee girls compared with Danish-born girls. We also examined possible predictors of uptake among refugee girls. We used a register-based cohort design where refugee girls (n=3264) who, between 1 January 1994 and 31 December 2010, obtained residency permits in Denmark, were included and matched on age and sex with Danish-born girls (n=19 584). Personal identification numbers were cross-linked to the National Danish Health Service Register, identifying all contacts for HPV-immunization in both the ordinary HPV-immunization program and in a catch-up program. We applied logistic regression to estimate the odds ratios (OR) of uptake. We found that refugee girls had significantly lower HPV immunization uptake compared with Danish-born girls in the ordinary immunization program (OR=0.44; 95% confidence interval: 0.37-0.51) and the catch-up program (OR=0.61; 95% confidence interval: 0.54-0.69). The difference in odds decreased after adjusting by family income, but remained significant for the ordinary immunization program. We also identified that region of origin, duration of residence, and income were predictors of uptake among refugee girls. The lower uptake of HPV immunization among refugee girls raises questions about the coverage of this immunization program across increasingly ethnic diverse societies. More efforts to secure equal uptake are needed.
Article
Human papillomavirus (HPV) infection and cervical cancer disproportionately affect low-income and minority women. HPV vaccines have the potential to either reduce or exacerbate racial disparities in HPV-related diseases and cervical cancers, depending on the equitability of vaccine uptake. This review aims to identify barriers and facilitators of equitable uptake of HPV vaccination among low-income and minority girls. This review discusses factors related to race, ethnicity, and income that are associated with initiation and completion rates of the 3-dose HPV vaccine series and presents targets for intervention. We reviewed relevant English-language literature to identify current vaccination rates and factors associated with vaccine uptake. Study findings related to race (black, Latino, Asian), and incomes were summarized. Current trends in the United States indicate low uptake among all adolescents, and that rates stagnated between 2011 and 2012. Low-income and minority adolescents are equally or more likely to start the HPV vaccination series than are white and higher-income adolescents, but are less likely to complete all 3 shots. Provider recommendation is a key factor in HPV vaccination, and minorities are less likely to report receiving recommendations for HPV vaccination. As black, Hispanic, and Asian populations continue to grow in the United States over the next several decades, it is imperative that we not only improve HPV vaccination rates overall, but also focus on high-risk populations to prevent an increase in cervical cancer disparities.
Article
To examine the association between race/ethnicity and human papillomavirus (HPV) vaccine initiation and to determine how access to health care influences this relationship. We used nationally representative data from the National Survey of Family Growth to assess HPV vaccine initiation in 2,168 females aged 15-24 years. A series of regression analyses were performed to determine the independent effect of race/ethnicity on HPV vaccine initiation after controlling for sociodemographic variables and health care access measures. Age-stratified regression analyses were also performed to assess whether the relationship between race/ethnicity and HPV vaccine initiation differed among females aged 15-18 and 19-24 years. There were significant racial/ethnic disparities in HPV vaccination; United States (US)-born Hispanics, foreign-born Hispanics, and African-Americans were less likely to have initiated vaccination than were whites (p < .001). Adjusting for sociodemographic characteristics attenuated the disparity for both US-born and foreign-born Hispanics (adjusted odds ratio [AOR], .76; 95% confidence interval [CI], .50-1.16; and AOR, .67; 95% CI, .37-1.19) but not for African-Americans (AOR, .47, 95% CI, .33-.66). Adding health care access measures further attenuated the disparity for US-born and foreign-born Hispanics (AOR, .85, 95% CI, .54-1.34; and AOR, .84, 95% CI, .45-1.55). However, African-Americans remained less likely than whites to have initiated vaccination (AOR, .49, 95% CI, .36-.68). These racial/ethnic trends were similar for females aged 15-18 and 19-24 years. Lower rates of HPV vaccination among African-American females do not appear to be explained by differential access to health care. More research is necessary to elucidate factors contributing to HPV vaccination in this population.
Article
Human papillomavirus (HPV) vaccination is a safe and effective primary prevention strategy for cervical cancer. Little is known about correlates of HPV vaccination among Hispanic adolescents living in the United States. The purpose of this study was to (1) examine relationships between both U.S./American and Latina acculturation and variables typically associated with HPV vaccine uptake (e.g., physician recommendation); and (2) identify predictors of HPV vaccine uptake among daughters of Latina mothers. Latina mothers (N = 200) recruited from a Federally Qualified Health Center serving low-income families in Florida completed a semistructured interview that assessed awareness of and knowledge about HPV and HPV-vaccines, vaccination beliefs, whether their daughter's physician had recommended the HPV vaccine, health history, U.S./American and Latina acculturation, mother and daughter demographics, and daughter's HPV vaccination status. Only 18% of daughters had received at least one dose of the vaccine. Higher levels of U.S./American acculturation were associated with greater odds of vaccine uptake and other common predictors of HPV vaccination (e.g., physician recommendation, vaccine awareness). A multivariate logistic regression analysis identified three independent predictors of vaccine uptake: physician recommendation, daughter's age, and low worry about how to pay for the vaccine. Despite generally favorable views of HPV vaccination, observed rates of vaccine uptake in this sample were substantially lower than national estimates. Latina mothers who are more integrated into U.S. society may be more likely to vaccinate their daughters against HPV. Findings provide promising directions for future HPV vaccination interventions with Hispanic adolescents.
Children with an immigrant background: bridging cultures
  • Statistics Canada
Vaccine coverage in Canadian children: results from the 2019 childhood National Immunization Coverage survey (cNICS)
  • Public Health Agency of Canada
Human papillomavirus vaccines: WHO position paper (2022 update)
  • World Health Organization
Dictionary, Census of Population, 2016
  • Statistics Canada
Vaccination coverage goals and vaccine preventative disease reduction targets by 2025
  • Government of Canada
Disparities and trends in routine adult vaccination rates among disaggregated Asian American subgroups, National Health Interview Survey 2006–2018
  • Wang
12 COVID-19 vaccination strategies for your community. A field guide to support the work of health departments and community organizations
  • Centers for Disease Control and Prevention
Human papillomavirus 9-valent vaccine
  • Alberta Health Services
Human papillomavirus (HPV)
  • Government of Canada