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Wang X, Pan J, Yan B, Zhang R, Yang T, Zhou X. Inequities in human papillomavirus vaccination among children aged 9-14 years old under constrained vaccine supply in China. Int J Equity Health 2024; 23:112. [PMID: 38822383 PMCID: PMC11141026 DOI: 10.1186/s12939-024-02199-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Accepted: 05/20/2024] [Indexed: 06/03/2024] Open
Abstract
BACKGROUND Inequities in access to human papillomavirus (HPV) vaccine are becoming a growing critical issue globally. Few studies investigate the factors determining HPV vaccine uptake disparities when vaccine supply is constrained, especially in low- and middle-income countries. The aim of this study was to investigate inequities of HPV vaccination and related factors under the constrained vaccine supply in China. METHODS A cross-sectional survey was conducted in a developed eastern coastal province and a developing western one in China between November and December 2022. Employing multistage stratified cluster random sampling, the study collected data from parents of children aged 9-14. Mixed-effects logistic regression models with school units as random effects were used for analysis. RESULTS From 4,127 eligible parents (as vaccine decision makers for girls), 1,346 (32.6%) intended to vaccinate their daughters against HPV, of which 836 (62.1%) attempted to schedule a vaccination appointment. Only 16.4% succeeded in booking an appointment. More than half of the intended parents expected the imported 9-valent HPV vaccine. There were significant disparities in HPV vaccine awareness, intention, and vaccination behavior across educational, income, geographic, ethnic, gender, and health literacy levels. Vaccine awareness and intentions were higher among parents with higher socioeconomic status; however, girls from lower socioeconomic families were more likely to receive the HPV vaccine and had a higher domestically produced vaccination rate. Significant disparities exist in vaccination intentions and actual vaccination behaviors, primarily due to large supply constraints of the HPV vaccine. CONCLUSIONS Sustained health education campaigns are needed to raise awareness of the HPV vaccine, improve health literacy, and decrease over-preference for the 9-valent HPV vaccine. A mother's HPV vaccination behavior was positively associated with increased intention and actual vaccination behavior for her daughter. This study advocates for complementary cervical cancer prevention programs targeting both mothers and daughters.
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Affiliation(s)
- Xiaomin Wang
- School of Public Health, Hangzhou Normal University, No. 2318 Yuhangtang Road, Yuhang District, Hangzhou, 311121, China
| | - Jiayi Pan
- Institute of Social Medicine, School of Medicine, Zhejiang University, 866 Yuhangtang Road, Xihu District, Hangzhou, 310058, China
| | - Bo Yan
- Institute of Social Medicine, School of Medicine, Zhejiang University, 866 Yuhangtang Road, Xihu District, Hangzhou, 310058, China
| | - Ran Zhang
- Department of Health Promotion, Education, and Behavior, Arnold School of Public Health, University of South Carolina, Columbia, SC, 29208, USA
| | - Tianchi Yang
- Institute of Immunization and Prevention, Ningbo Municipal Center for Disease Control and Prevention, No.1166, Fan Jiangan Road, Haishu District, Ningbo City, 315000, Zhejiang Province, China.
| | - Xudong Zhou
- Institute of Social Medicine, School of Medicine, Zhejiang University, 866 Yuhangtang Road, Xihu District, Hangzhou, 310058, China.
- The Second Affiliated Hospital, School of Medicine, Zhejiang University, 88 Jiefang Road, Hangzhou, 310009, China.
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Magana K, Strand L, Love M, Moore T, Peña A, Ito Ford A, Vassar M. Health inequities in human papillomavirus prevention, diagnostics and clinical care in the USA: a scoping review. Sex Transm Infect 2023; 99:128-136. [PMID: 36396174 DOI: 10.1136/sextrans-2022-055587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 10/31/2022] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Human papillomavirus (HPV) represents the most common STI in the USA. HPV inequities in prevention, diagnostics and clinical care persist. We define inequities as systematic, avoidable and unfair differences in health outcomes. OBJECTIVES The objectives of this scoping review are to chart existing data on HPV-related inequities, identify gaps in existing literature and guide future research to reduce these inequities. METHODS We completed a scoping review following guidelines from the Joanna Briggs Institute and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses scoping reviews extension. We performed a literature search on PubMed and Ovid Embase in July 2022 for articles pertaining to HPV and evaluating populations within the USA. We included English language publications from 2018 to 2022 evaluating at least one health inequity outlined by the National Institutes of Health. General publication characteristics and health inequity data were charted in a masked, duplicate fashion using a pilot-tested Google Form. We analysed frequencies of health inequities and summarised main findings from included studies. RESULTS Our final sample included 170 publications. The most common inequities examined were race/ethnicity (140 studies), sex or gender (97 studies), and income (69 studies). Many historically marginalised racial/ethnic groups had lower rates of HPV-related knowledge, vaccination and worse overall outcomes related to HPV. Compared with women, men had lower rates of HPV vaccination and provider recommendation, and higher rates of HPV-infection. Results regarding income were largely conflicting. CONCLUSION Findings from our review demonstrate clear gaps in HPV-related inequity research. Vaccine completion, provider recommendation and intersectionality should continue to be evaluated to implement targeted interventions.
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Affiliation(s)
- Kimberly Magana
- Office of Medical Student Research, Oklahoma State University Center for Health Sciences, Tulsa, Oklahoma, USA
| | - Laura Strand
- Office of Medical Student Research, Oklahoma State University Center for Health Sciences, Tulsa, Oklahoma, USA
| | - Mitchell Love
- Office of Medical Student Research, Oklahoma State University Center for Health Sciences, Tulsa, Oklahoma, USA
| | - Ty Moore
- Office of Medical Student Research, Oklahoma State University Center for Health Sciences, Tulsa, Oklahoma, USA
| | - Andriana Peña
- Office of Medical Student Research, Oklahoma State University Center for Health Sciences, Tulsa, Oklahoma, USA
| | - Alicia Ito Ford
- Office of Medical Student Research, Oklahoma State University Center for Health Sciences, Tulsa, Oklahoma, USA.,Department of Psychiatry and Behavioral Sciences, Oklahoma State University Center for Health Sciences, Tulsa, Oklahoma, USA
| | - Matt Vassar
- Office of Medical Student Research, Oklahoma State University Center for Health Sciences, Tulsa, Oklahoma, USA.,Department of Psychiatry and Behavioral Sciences, Oklahoma State University Center for Health Sciences, Tulsa, Oklahoma, USA
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Ejezie CL, Osaghae I, Ayieko S, Cuccaro P. Adherence to the Recommended HPV Vaccine Dosing Schedule among Adolescents Aged 13 to 17 Years: Findings from the National Immunization Survey-Teen, 2019–2020. Vaccines (Basel) 2022; 10:vaccines10040577. [PMID: 35455325 PMCID: PMC9026751 DOI: 10.3390/vaccines10040577] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/06/2022] [Accepted: 04/06/2022] [Indexed: 11/16/2022] Open
Abstract
The 9-valent human papillomavirus (9-vHPV) vaccine uptake rate among adolescents has improved over the years; however, little is known about the adherence to the recommended dosing schedule. This study examines the prevalence and factors associated with adherence to the recommended 9vHPV vaccination dosing schedule among adolescents aged 13 to 17 years. The cross-sectional study was conducted using the 2019–2020 National Immunization Survey-Teen. The parents of 34,619 adolescents were included in our analyses. The overall up-to-date (UTD) prevalence was 57.1%. The UTD prevalence was 60.0% among females and 54.2% among males. Adolescents aged 16 years had the highest UTD prevalence of 63.0%. The UTD prevalence was 61.6% among Hispanics and 54.7% among non-Hispanic Whites. Overall, compared to females, males had 14% lower odds of UTD. The odds of UTD were 1.91 times, 2.08 times, and 1.98 times higher among adolescents aged 15–17 years, respectively, compared to those aged 13 years. Moreover, region, poverty, insurance status, mothers’ educational level, and provider recommendation were associated with UTD. Our findings show that adherence to the recommended 9vHPV vaccine schedule is low in the US. Targeted public health efforts are needed to improve the rates of adherence to the recommended 9vHPV dose schedule.
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Affiliation(s)
- Chinenye Lynette Ejezie
- Department of Health Promotion and Behavioral Sciences, The University of Texas School of Public Health, 1200 Pressler St, Houston, TX 77030, USA; (S.A.); (P.C.)
- Department of Investigational Cancer Therapeutics, The University of MD Anderson Cancer Center, Houston, TX 77030, USA
- Correspondence: ; Tel.: +1-(832-513-3925)
| | - Ikponmwosa Osaghae
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
- Department of Epidemiology, Human Genetics & Environmental Sciences, The University of Texas School of Public Health, Houston, TX 77030, USA
| | - Sylvia Ayieko
- Department of Health Promotion and Behavioral Sciences, The University of Texas School of Public Health, 1200 Pressler St, Houston, TX 77030, USA; (S.A.); (P.C.)
| | - Paula Cuccaro
- Department of Health Promotion and Behavioral Sciences, The University of Texas School of Public Health, 1200 Pressler St, Houston, TX 77030, USA; (S.A.); (P.C.)
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LaMori J, Feng X, Pericone CD, Mesa-Frias M, Sogbetun O, Kulczycki A. Real-world evidence on adherence and completion of the two-dose recombinant zoster vaccine and associated factors in U.S. adults, 2017-2021. Vaccine 2022; 40:2266-2273. [PMID: 35292160 DOI: 10.1016/j.vaccine.2022.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/28/2022] [Accepted: 03/02/2022] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Poor compliance with adult vaccination recommendations contributes to substantial disease burden. Evidence on adherence, completion, and completion timeliness for the 2-dose recombinant herpes zoster vaccine (RZV) and factors associated with these outcomes is limited and not readily generalizable for the entire U.S. METHODS This retrospective, observational study examined adherence, completion, and the impact of sociodemographic, clinical and geographical factors among U.S. adults ≥ 50 years receiving RZV (4/20/2017 to 3/31/2021), using a large, geographically representative administrative claims database. Continuous enrollment in a medical benefit plan for six months prior to and following the index date (first observed vaccine dose) was required. Adherence was defined as receipt of the 2nd dose within 2-6 months, per label recommendation. Completion (receipt of all doses) was assessed at 6, 12, 18, and 24 months. RESULTS Among 726,352 adults included, the adherence rate was 71.8%. Among 208,311 adults with 24-month follow-up, the completion rate was 72.3% after 6 months and 86.2% after 24 months. Logistic regression showed low adherence/completion was associated with younger age, Black or Hispanic race/ethnicity, lower income, lower educational attainment, and possessing commercial rather than Medicare healthcare insurance. Recipients identified using pharmacy claims had much higher adherence (74.0%) than those identified using medical claims (48.0%). CONCLUSIONS Adherence and completion rates for RZV are suboptimal, especially for adults aged 50-64, racial/ethnic minorities, individuals with lower socio-economic status and those without Medicare insurance. More research and public health efforts are needed to understand and address potential barriers to RZV uptake, adherence and completion.
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Affiliation(s)
- Joyce LaMori
- Janssen Scientific Affairs, Titusville, NJ, USA.
| | - Xue Feng
- Janssen Scientific Affairs, Titusville, NJ, USA
| | | | | | | | - Andrzej Kulczycki
- Department of Health Policy & Organization, University of Alabama at Birmingham, Birmingham, AL, USA.
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Bernstein TA, Broome M, Millman J, Epstein J, Derouin A. Promoting Strategies to Increase HPV Vaccination in the Pediatric Primary Care Setting. J Pediatr Health Care 2022; 36:e36-e41. [PMID: 35120779 DOI: 10.1016/j.pedhc.2021.10.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 10/07/2021] [Accepted: 10/31/2021] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Evaluation of a quality improvement project designed to improve HPV vaccine uptake in a pediatric primary care setting for young adolescents. METHOD Three strategies were implemented in one private pediatric practice to promote HPV vaccine uptake for 11- and 12-year-old adolescents. 1) a standardized vaccine policy change was made to include HPV vaccine with other adolescent vaccines, 2) a pre-visit email was sent to parents of teens to provide factual vaccine information in preparation for the visit, and 3) a provider communication initiative was implemented to ensure all providers communicated consistent messages and delivered an effective cancer prevention recommendation for HPV vaccination. A pre/post design was used to compare vaccine rates. Data was obtained via the electronic health records. RESULTS The post-intervention group demonstrated HPV vaccine rates increased substantially from 17.8% to 63.6%. DISCUSSION Strategically implementing standardized clinical vaccine policies and presumprive provider communication practices has implications for significantly increasing HPV vaccine uptake among teens and may be key to preventing cancer among future generations.
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Affiliation(s)
| | - Marion Broome
- Dean and Vice-Chancellor for Nursing Affairs, School of Nursing, Duke University, Associate Vice-President for Academic Nursing, Duke University School of Nursing, Durham, NC
| | | | - Jessica Epstein
- Pediatrician, Greenwich Pediatric Associates, Old Greenwich, CT
| | - Anne Derouin
- Professor and Assistant Dean, MSN program at Duke University School of Nursing, Durham, NC
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