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Stuetzle SCW, Willis M, Barnowska EJ, Bonkass AK, Fastenau A. Factors influencing vaccine hesitancy toward non-covid vaccines in South Asia: a systematic review. BMC Public Health 2025; 25:1246. [PMID: 40175957 PMCID: PMC11966902 DOI: 10.1186/s12889-025-22462-4] [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: 12/06/2024] [Accepted: 03/24/2025] [Indexed: 04/04/2025] Open
Abstract
Declared as one of the ten most pressing threats to global health in 2019, the complexity around vaccine acceptance and hesitancy has once again gained great momentum following the COVID-19 pandemic. Lack of vaccine acceptance may endanger the mission of improving vaccine uptake globally to tackle pandemics, reduce morbidity and mortality of preventable diseases and to prevent antibiotic resistance worldwide. Countries of the global south, including South Asian Association for Regional Cooperation (SAARC) countries are especially affected by the dangers of low vaccination uptake and continue to show decreases in coverage in recent years. This paper examines factors contributing to vaccine hesitancy in south Asia and the extent to which they are context and disease specific, guided by a modified version of the WHO SAGE 5 C model by Razai et al. Three databases were searched for peer-reviewed articles by using a comprehensive search strategy. Results from 44 quantitative, qualitative and mixed-method studies were included in the systematic review and appraised for quality, thematically analyzed and mapped onto the 5 C model. findings from India, Pakistan, Bangladesh, Nepal and Afghanistan showed vaccine hesitancy to be context and vaccine-specific within different settings of the countries. The main factors contributing to vaccine hesitancy can be identified as narrow confidence in vaccines, miscommunication, and lack of knowledge embedded into overarching constraints and contexts. To tackle vaccine hesitancy in SAARC countries, interventions need to be co-created by communities and mutual trust needs to be ensured, for instance through increased equity in knowledge distribution.
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Affiliation(s)
- Sophie C W Stuetzle
- Department of Global Health, Institute of Public Health and Nursing Research, University of Bremen, Bremen, Germany
- Marie Adelaide Leprosy Center, Karachi, Pakistan
| | - Matthew Willis
- Marie Adelaide Leprosy Center, Karachi, Pakistan.
- School of Medicine, Dentistry & Biomedical Sciences, Queen's University Belfast, Belfast, BT7 1NN, UK.
| | - Ewelina Julia Barnowska
- School of Medicine, Dentistry & Biomedical Sciences, Queen's University Belfast, Belfast, BT7 1NN, UK
| | | | - Anil Fastenau
- Department of Global Health, Institute of Public Health and Nursing Research, University of Bremen, Bremen, Germany
- German Leprosy and Tuberculosis Relief Association (DAHW), Wuerzburg, Germany
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Soni S, Amin S, Pundhir A, Ramotra RK. Assessment of 5A's of Human Papilloma Virus Vaccination: Awareness, Attitude, Apprehension, Action Expected and Acceptability Amongst Health Care Providers, Medical Students, Para-Medical and Administration Staff in AIIMS Rajkot. J Med Virol 2025; 97:e70231. [PMID: 39936884 DOI: 10.1002/jmv.70231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2024] [Revised: 01/28/2025] [Accepted: 01/29/2025] [Indexed: 02/13/2025]
Abstract
The study aims to assess awareness, attitude, apprehension, action expected from policy makers, and acceptability towards HPV vaccination amongst health care providers (HCP), medical students, paramedical staff and administrative personnel. A cross-sectional study was conducted with 501 participants, including HCP, medical students, paramedical and administrative staff. Their awareness, attitudes, apprehensions, actions expected from policymakers, and acceptability towards HPV vaccine were assessed through a Google Form survey. Of the 501 participants, 92.4% were aware of HPV vaccines, 24.6% had a thorough understanding of HPV, but only 5.8% had received the vaccine. Most participants held a positive attitude toward cervical cancer prevention and HPV vaccination, although 46.7% expressed apprehensions. Before viewing educational video, 278 participants (55.8%) were willing to receive the HPV vaccine, while 116 (44.2%) were not. After viewing the educational video, willingness increased to 394 participants (78.6%), and those unwilling decreased to 107 (21.4%). Factors such as age, gender, marital status, education, and professional role did not significantly predict knowledge or apprehension regarding HPV and the HPV vaccine. However, professional role and younger adult (20-39 years) groups were statistically significant predictors of a positive attitude as well as stronger expectations for action from policymakers towards HPV vaccine. The study reveals significant gaps in HPV vaccine awareness and uptake among medical professionals, paramedics, and administrative staff. It highlights the need for broad educational programs to address these knowledge gaps, emphasizing HPV's health impacts and preventive measures. Multimedia educational interventions effectively boost vaccine acceptance among the groups and the general public.
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Affiliation(s)
- Sweta Soni
- Department of Radiation Oncology, All India Institute of Medical Sciences, Rajkot, India
| | - Sarjil Amin
- Department of Radiation Oncology, All India Institute of Medical Sciences, Rajkot, India
| | - Ashish Pundhir
- Department of Community Medicine and Family Medicine, All India Institute of Medical Sciences, Kalyani, India
| | - Rohini Krishna Ramotra
- Department of Obstetrics and Gynecology, All India Institute of Medical Sciences, Rajkot, India
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Krishna E, Patil SK, Nirala SK, Naik BN, Kumar V, Singh CM, Kumar V. Understanding cervical cancer, human papillomavirus (HPV), and HPV vaccine acceptance in college-going students: Institutional-based cross-sectional study from Bihar State. J Family Med Prim Care 2025; 14:363-370. [PMID: 39989516 PMCID: PMC11845009 DOI: 10.4103/jfmpc.jfmpc_1277_24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2024] [Revised: 08/29/2024] [Accepted: 09/17/2024] [Indexed: 02/25/2025] Open
Abstract
Background Cervical cancer is the second leading cause of cancer-related deaths in Indian women, constituting a significant public health problem. Improving knowledge regarding cervical cancer, human papillomavirus (HPV), and HPV vaccines will help in increased vaccine acceptance and prevention of cervical cancer. Material and Methods This cross-sectional study was conducted among 801 college-going students of Patna, Bihar, using a predesigned, semistructured, self-administered questionnaire. Data analysis was performed using the SPSS version 20 (Statistical Package for Social Sciences) software. Results A total of 801 students participated in the study, and the mean (SD) age was 20.6 ± 2.2 years. The knowledge of students in the medical group was found to be higher than that in the nonmedical group. In the medical group, 93% of the students were aware of cervical cancer versus 71.3% students in the nonmedical group. Awareness regarding the etiological role of HPV in cervical cancer was 84.3% in the medical group compared to 16% in the nonmedical group. Most (82.5%) medical students knew of the existence of a vaccine against HPV in contrast to just 12.5% of the nonmedical group. Willingness to take the vaccine in the medical group was 84.3% versus 46.5% in the nonmedical group. Willingness to pay for the vaccine was reported by 55.6% and 7.5% in the medical and nonmedical groups, respectively. Conclusion The comparative results of the two groups identified specific areas where awareness campaigns should be intensified for both medical and nonmedical groups. This study further highlighted nonmedical students, which also represents the general population has very less knowledge about HPV and the HPV vaccine. The findings emphasize the importance of awareness campaigns and educational interventions to improve understanding and vaccine uptake among potential beneficiaries.
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Affiliation(s)
- Ekta Krishna
- Department of Community and Family Medicine, All India Institute of Medical Sciences, Patna, Bihar, India
| | - Shreyas Kumar Patil
- Department of Community and Family Medicine, All India Institute of Medical Sciences, Patna, Bihar, India
| | - Santosh Kumar Nirala
- Department of Community and Family Medicine, All India Institute of Medical Sciences, Patna, Bihar, India
| | - Bijaya Nanda Naik
- Department of Community and Family Medicine, All India Institute of Medical Sciences, Patna, Bihar, India
| | - Vijay Kumar
- Department of Community Medicine, Indira Gandhi Institute of Medical Sciences, Patna, Bihar, India
| | - Chanda Mani Singh
- Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Vijay Kumar
- Department of Radiology, Indira Gandhi Institute of Medical Sciences, Patna, Bihar, India
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Noreen K, Naeem Khalid S, Murad MA, Baig M, Khan SA. Uptake and determinants of HPV vaccination in South Asia: a systematic review and meta-analysis. Front Public Health 2024; 12:1453704. [PMID: 39722717 PMCID: PMC11668735 DOI: 10.3389/fpubh.2024.1453704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2024] [Accepted: 11/28/2024] [Indexed: 12/28/2024] Open
Abstract
Background Cervical cancer burden in South Asia is among the highest globally. Due to the lack of national immunization programs, the prevalence of human papillomavirus (HPV) infection and vaccine uptake remains unknown. This systematic review and meta-analysis aim to determine the prevalence of HPV vaccine uptake in South Asia. Methods We conducted a comprehensive search of MEDLINE (via PubMed), Embase, the Cochrane Library, and the Web of Science, covering the period from inception to May 20, 2024. We included observational studies reporting HPV vaccine uptake in South Asia, without any language filters or restrictions. The search strategy involved MeSH terms and relevant keywords related to "Papillomavirus Infections," "Vaccination," and "Uptake." MetaXL and STATA were used to perform a proportional meta-analysis and meta-regression analysis. Results Out of 3,913 articles identified, 17 articles (10,585 participants) were included in the systematic review. The pooled prevalence of vaccine uptake was 8% (95% CI 1-21). There was high heterogeneity between studies (I 2 = 100%). The pooled prevalence of adequate knowledge of the HPV vaccine was 41% (95% CI 28-55, I 2 = 99%). The pooled prevalence of a favorable attitude toward the HPV vaccine was 56% (95% CI 47-66, I 2 = 98%). In the univariate meta-regression model, good knowledge significantly predicted HPV vaccine uptake (p = 0.003), while no covariates were found to be significant predictors of attitudes toward HPV vaccine uptake. Conclusion The findings of this meta-analysis indicate a low pooled prevalence of HPV vaccine uptake (8%) in South Asian countries. The pooled prevalence of adequate knowledge and a favorable attitude toward the vaccine were 41 and 56%, respectively. In the univariate meta-regression model, knowledge of the HPV vaccine uptake was the only significant predictor of vaccine uptake. Systematic review registration Systematic review is registered at Prospero through the link https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42024547393.
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Affiliation(s)
- Khola Noreen
- Department of Community Medicine, Rawalpindi Medical University, Rawalpindi, Pakistan
| | | | - Manal Abdulaziz Murad
- Department of Family and Community Medicine, Faculty of Medicine in Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mukhtiar Baig
- Department of Biochemistry, Faculty of Medicine in Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia
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Coursey K, Muralidhar K, Srinivas V, Jaykrishna P, Begum F, Ningaiah N, Lee SJ, Madhivanan P. Acceptability of HPV vaccination for cervical cancer prevention amongst emerging adult women in rural Mysore, India: a mixed-methods study. BMC Public Health 2024; 24:2139. [PMID: 39112938 PMCID: PMC11304586 DOI: 10.1186/s12889-024-19485-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 07/15/2024] [Indexed: 08/11/2024] Open
Abstract
BACKGROUND India has the highest number of estimated deaths from cervical cancer globally, with most cases attributed to Human papillomavirus (HPV). The World Health Organization recommends primary HPV vaccination for girls ages 9-14, with catch-up vaccination for young women ≥ 15 if feasible. India authorized a new, inexpensive HPV vaccine in 2022; given anticipated vaccine expansion, we conducted a mixed-methods study exploring acceptability of HPV catch-up vaccination for young emerging adult women in rural Mysore, India. METHODS Between September 2022-April 2023, participants were recruited with assistance from community health workers. In the qualitative phase, gender-stratified, audio-recorded focus group discussions (FGDs) were conducted in Kannada with emerging adults ages 18-26. FGDs were transcribed, translated, and analyzed using rapid approach to identify key HPV vaccination attributes. In the quantitative phase, a conjoint analysis was conducted to assess the impact of seven vaccination attributes on likelihood to vaccinate (LTV). Women ages 18-26 ranked LTV in eight hypothetical vaccination scenarios, and the relative impact of each attribute on LTV was calculated. All participants received education about cervical cancer, HPV, and HPV vaccination. RESULTS Fifty-two young adults (female = 31, male = 21) participated in seven FGDs, and 101 women participated in the conjoint analysis. Average age of the 153 participants was 22.5 years, 66.7% had married, and all had completed high school. Only 17.9% had heard of cervical cancer, and 2.7% knew of the HPV vaccine. FGDs identified seven HPV vaccination attributes: cost, vaccination location, family support, peer influence, dose number, side effects, and risk of acquiring HPV. In the conjoint analysis, all attributes except dose number significantly impacted LTV. Family support (impact score = 19.37, p < 0.0001) and peer influence (impact score = 18.01, p < 0.0001) had the greatest influence, followed by cost (impact score = 16.64, p < 0.0001) and HPV risk (impact score = 12.31, p < 0.0001). Vaccination location (government centers preferred) and side effects were also significant. CONCLUSION Participants had poor knowledge of cervical cancer and HPV. Social attributes (family support, peer influence) had greatest impacts on LTV, and future studies should explore family-based interventions and peer education. Providing free vaccines at government centers through India's national immunization program would maximize catch-up HPV vaccination for rural young women.
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Affiliation(s)
- Kate Coursey
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, 90095, USA.
| | - Kiranmayee Muralidhar
- Public Health Research Institute of India, Mysore, Karnataka, 570020, India
- JSS Academy of Higher Education and Research, Mysuru, Karnataka, 570004, India
| | - Vijaya Srinivas
- Public Health Research Institute of India, Mysore, Karnataka, 570020, India
| | | | - Fazila Begum
- Public Health Research Institute of India, Mysore, Karnataka, 570020, India
| | | | - Sung-Jae Lee
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, 90095, USA
| | - Purnima Madhivanan
- Public Health Research Institute of India, Mysore, Karnataka, 570020, India
- Department of Health Promotion Sciences, Zuckerman College of Public Health, University of Arizona, Mel & Enid, Tucson, AZ, 85724, USA
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Kaur KN, Niazi F, Nandi D, Taneja N. Gender-Neutral HPV Vaccine in India; Requisite for a Healthy Community: A Review. Cancer Control 2024; 31:10732748241285184. [PMID: 39344048 PMCID: PMC11440547 DOI: 10.1177/10732748241285184] [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] [Indexed: 10/01/2024] Open
Abstract
Human papillomavirus (HPV) affects approximately 80% of individuals, irrespective of gender, and is implicated in various cancers. Existing HPV vaccines, while safe and effective, do not sufficiently protect males when administered solely to females. This review, triggered by the urgent need to address this gap and reduce the associated stigma, aims to evaluate the introduction of a gender-neutral HPV vaccine, GARDASIL-9, in India. The primary objective is to assess the necessity and feasibility of incorporating the gender-neutral HPV vaccine into India's national immunization program. This integration is crucial to ensure equitable access for all children and to mitigate the substantial burden of HPV. A literature search was conducted using databases such as Google Scholar, PubMed, government websites, and relevant publications. Keywords included "gender-neutral vaccine", "HPV vaccine", and "Indian population". The central research question guiding this review is: How necessary and feasible is the inclusion of a gender-neutral HPV vaccine in India's national immunization schedule to ensure equitable access for all children and reduce the HPV burden? The review inclusion criteria comprised studies addressing the prevalence of HPV infections, HPV vaccination awareness among both genders, the cost-effectiveness of gender-neutral vaccines, current HPV vaccination status, and future perspectives specific to India. Studies not meeting these criteria were excluded. The review highlights that introducing a gender-neutral HPV vaccine in India is imperative. Including males in vaccination efforts significantly reduces the overall disease burden and helps in reducing the stigma associated with HPV. A comprehensive vaccination program, bolstered by education and awareness campaigns, and its inclusion in the national immunization schedule is essential. This approach ensures equitable access to the vaccine for all children, fostering a healthier community, preventing HPV-related cancers, and enhancing public health outcomes in India.
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Affiliation(s)
- Karuna Nidhi Kaur
- Division of Biomedical Informatics, Indian Council of Medical Research (ICMR), New Delhi, India
| | - Farah Niazi
- Laboratory of Disease Dynamics & Molecular Epidemiology, Amity Institute of Public Health, Amity University, Noida, India
| | - Dhruva Nandi
- Medical College Hospital & Research Centre, SRM Institute of Science & Technology, Kattankulathur, India
| | - Neha Taneja
- Community Medicine, National level Faculty Community Medicine Prepladder, New Delhi, India
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Di Giuseppe G, Angelillo S, Bianco A, Gallè F, Licata F, Liguori G, Napolitano F, Nobile CGA, Pavia M, Pelullo CP, Angelillo IF. Evaluating Knowledge, Attitudes, and Behaviors toward HPV Infection and Vaccination among University Students in Italy. Vaccines (Basel) 2023; 11:1517. [PMID: 37896921 PMCID: PMC10611138 DOI: 10.3390/vaccines11101517] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/18/2023] [Accepted: 09/21/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND This survey investigated the knowledge, attitudes, and behaviors towards HPV preventive measures among university students in Italy and their associated factors. METHODS The cross-sectional survey was conducted between November 2022 and April 2023. RESULTS Only 41.7% knew about HPV infection and the main preventive measures. Multilevel mixed-effects logistic regression analysis showed that females, those aged 25-30 years, those who have had oral sex, those who had received information about HPV infection and preventive measures from physicians, and those who needed additional information about HPV infection and preventive measures were more knowledgeable. Only 39.1% have received at least one HPV vaccination dose, whereas 29.2% and 31.7% had not been vaccinated or did not remember. Multilevel mixed-effects logistic regression analysis identified that female students enrolled in the field of health sciences, those who did not report a prior history of a sexually transmitted infection, and those with a higher knowledge about HPV infection and preventive measures were more willing to receive the HPV vaccination. CONCLUSIONS Despite some limitations, this was the first detailed survey on this topic conducted in the post-acute phase of COVID-19 among university students in Italy. The survey underlined the need to develop and to implement comprehensive educational programs and health interventions among students, to enhance their knowledge and modify their attitudes and improve the HPV vaccine uptake.
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Affiliation(s)
- Gabriella Di Giuseppe
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Silvia Angelillo
- Department of Health Sciences, University of Catanzaro "Magna Graecia", 88100 Catanzaro, Italy
| | - Aida Bianco
- Department of Health Sciences, University of Catanzaro "Magna Graecia", 88100 Catanzaro, Italy
| | - Francesca Gallè
- Department of Movement Sciences and Wellbeing, University of Naples "Parthenope", 80133 Naples, Italy
| | - Francesca Licata
- Department of Health Sciences, University of Catanzaro "Magna Graecia", 88100 Catanzaro, Italy
| | - Giorgio Liguori
- Department of Movement Sciences and Wellbeing, University of Naples "Parthenope", 80133 Naples, Italy
| | - Francesco Napolitano
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Carmelo Giuseppe Angelo Nobile
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata of Rende, 87036 Cosenza, Italy
| | - Maria Pavia
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Concetta Paola Pelullo
- Department of Movement Sciences and Wellbeing, University of Naples "Parthenope", 80133 Naples, Italy
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Escoffery C, Petagna C, Agnone C, Perez S, Saber LB, Ryan G, Dhir M, Sekar S, Yeager KA, Biddell CB, Madhivanan P, Lee S, English AS, Savas L, Daly E, Vu T, Fernandez ME. A systematic review of interventions to promote HPV vaccination globally. BMC Public Health 2023; 23:1262. [PMID: 37386430 PMCID: PMC10308645 DOI: 10.1186/s12889-023-15876-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 05/11/2023] [Indexed: 07/01/2023] Open
Abstract
BACKGROUND Despite the human papillomavirus (HPV) vaccine being a safe, effective cancer prevention method, its uptake is suboptimal in the United States (U.S.). Previous research has found a variety of intervention strategies (environmental and behavioral) to increase its uptake. The purpose of the study is to systematically review the literature on interventions that promote HPV vaccination from 2015 to 2020. METHODS We updated a systematic review of interventions to promote HPV vaccine uptake globally. We ran keyword searches in six bibliographic databases. Target audience, design, level of intervention, components and outcomes were abstracted from the full-text articles in Excel databases. RESULTS Of the 79 articles, most were conducted in the U.S. (72.2%) and in clinical (40.5%) or school settings (32.9%), and were directed at a single level (76.3%) of the socio-ecological model. Related to the intervention type, most were informational (n = 25, 31.6%) or patient-targeted decision support (n = 23, 29.1%). About 24% were multi-level interventions, with 16 (88.9%) combining two levels. Twenty-seven (33.8%) reported using theory in intervention development. Of those reporting HPV vaccine outcomes, post-intervention vaccine initiation ranged from 5% to 99.2%, while series completion ranged from 6.8% to 93.0%. Facilitators to implementation were the use of patient navigators and user-friendly resources, while barriers included costs, time to implement and difficulties of integrating interventions into the organizational workflow. CONCLUSIONS There is a strong need to expand the implementation of HPV-vaccine promotion interventions beyond education alone and at a single level of intervention. Development and evaluation of effective strategies and multi-level interventions may increase the uptake of the HPV vaccine among adolescents and young adults.
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Affiliation(s)
- Cam Escoffery
- Rollins School of Public Health, Emory University, 1518 Clifton Road, NE, Atlanta, GA, 30322, 404-727-4701, USA.
| | - Courtney Petagna
- Rollins School of Public Health, Emory University, 1518 Clifton Road, NE, Atlanta, GA, 30322, 404-727-4701, USA
| | - Christine Agnone
- Rollins School of Public Health, Emory University, 1518 Clifton Road, NE, Atlanta, GA, 30322, 404-727-4701, USA
| | - Stephen Perez
- Rollins School of Public Health, Emory University, 1518 Clifton Road, NE, Atlanta, GA, 30322, 404-727-4701, USA
| | - Lindsay B Saber
- Rollins School of Public Health, Emory University, 1518 Clifton Road, NE, Atlanta, GA, 30322, 404-727-4701, USA
| | - Grace Ryan
- Department of Population and Quantitative Health Sciences, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Meena Dhir
- Rollins School of Public Health, Emory University, 1518 Clifton Road, NE, Atlanta, GA, 30322, 404-727-4701, USA
| | - Swathi Sekar
- Rollins School of Public Health, Emory University, 1518 Clifton Road, NE, Atlanta, GA, 30322, 404-727-4701, USA
| | - Katherine A Yeager
- Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, GA, USA
| | - Caitlin B Biddell
- Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, Durham, NC, USA
| | - Purnima Madhivanan
- Mel & Enid Zuckerman College of Public Health, University of Arizona, Tucson, USA
| | - Stephanie Lee
- Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, GA, USA
| | - Amanda S English
- Institute for Health Disparities, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Lara Savas
- Center for Health Promotion and Prevention Research, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Eliza Daly
- Prevention Research Center, College of Public Health, University of Iowa, Iowa City, IA, USA
| | - Thuy Vu
- Health Promotion Research Center, School of Public Health, University of Washington, Seattle, WA, USA
| | - Maria E Fernandez
- Center for Health Promotion and Prevention Research, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX, USA
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Kong J, Liang C, Fu D, Wang L, Yan X, Li S, Zhang H. Reliability and validity evaluation of the chinese revision of the attitude towards adult vaccination scale. BMC Public Health 2023; 23:883. [PMID: 37173680 PMCID: PMC10176303 DOI: 10.1186/s12889-023-15684-x] [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: 02/01/2023] [Accepted: 04/15/2023] [Indexed: 05/15/2023] Open
Abstract
BACKGROUND Although vaccination is one of the critical interventions to address global health issues, inadequate vaccination rates has become an international challenge. Vaccine hesitancy is the key to affecting inadequate vaccination rates. According to the WHO SAGE working group's definition, vaccine hesitancy refers to delaying or refusing vaccination and has been ranked as one of the top 10 health threats. There has yet to be a scale that evaluates vaccination attitudes among Chinese adults. However, an attitude quantity, the adult vaccination attitude scale, has been developed to assess adult vaccination attitudes and reasons for vaccine hesitancy. OBJECTIVE The Adult Attitudes to Vaccination Scale (ATAVAC) was initially developed by Professor Zoi Tsimtsiou et al. This study aimed to analyze the structure of the Chinese version of the ATAVAC and explore the relationship between adult vaccination attitudes, e-health literacy, and medical distrust. METHODS After obtaining author permission for the initial scales, the study was translated using the Brislin back-translation method. 693 adults were enrolled to the study. To validate this hypothesis, participants finished the socio-demographic questionnaire, the Chinese version of the ATAVAC, the electronic Health Literacy Scale (e-HEALS) and the Medical Mistrust Index (MMI). The exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were used to examine the underlying structure of the factors of the Chinese version of the Adult Vaccination Attitude Scale and to measure its reliability and validity. RESULTS The Cronbach's alpha coefficient for the Chinese version of the ATAVAC was 0.885, with Cronbach's alpha coefficients ranging from 0.850 to 0.958 for each dimension. The content validity index was 0.90, and the retest reliability was 0.943. The exploratory factor analysis (EFA) supported the 3-factor structure of the translation instrument, and the scale had good discriminant validity. The confirmatory factor analysis (CFA) revealed a degree of freedom of 1.219, a model fit index (GFI) of 0.979, a normative fit index (NFI) of 0.991, a Tucker-Lewis index (TLI) of 0.998, a comparability index (CFI) of 0.998 and a root mean square error of approximation (RMSEA) of 0.026. CONCLUSION The results show that the Chinese version of the ATAVAC has demonstrated good reliability and validity. Hence, it can be used as an effective tool to assess vaccination attitudes among Chinese adults.
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Affiliation(s)
- Jie Kong
- School of Nursing, Jinzhou Medical University, No 40, Section 3, Songpo Road, Jinzhou, 121001, China
| | - Chunguang Liang
- School of Nursing, Jinzhou Medical University, No 40, Section 3, Songpo Road, Jinzhou, 121001, China.
| | - Dongmei Fu
- School of Nursing, Jinzhou Medical University, No 40, Section 3, Songpo Road, Jinzhou, 121001, China
| | - Liying Wang
- School of Nursing, Jinzhou Medical University, No 40, Section 3, Songpo Road, Jinzhou, 121001, China
| | - Xiangru Yan
- School of Nursing, Jinzhou Medical University, No 40, Section 3, Songpo Road, Jinzhou, 121001, China
| | - Sisi Li
- School of Medicine, Panjin Vocational and Technical College, Panjin, China
| | - Hui Zhang
- School of Medicine, Wuhan College of Arts and Science, Wuhan, China
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Krokidi E, Rao AP, Ambrosino E, Thomas PPM. The impact of health education interventions on HPV vaccination uptake, awareness, and acceptance among people under 30 years old in India: a literature review with systematic search. FRONTIERS IN REPRODUCTIVE HEALTH 2023; 5:1151179. [PMID: 37215327 PMCID: PMC10198780 DOI: 10.3389/frph.2023.1151179] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 04/12/2023] [Indexed: 05/24/2023] Open
Abstract
Background The HPV vaccine is used as one of the main prevention tools for HPV-related cancers globally, yet it is not part of the Indian National Immunization program. In light of the introduction of the indigenous vaccine, we examine the effectiveness of health education about uptake, acceptance, and awareness. Methods Research was performed in the following databases: PubMed, CINAHL, Scopus, and Embase to identify studies between 2008 and 2022. Studies were included if: they were conducted in India including primary data research and health education intervention, and participants were between 9 and 29 years old. Results Out of the 10.952 results, 7 studies were included. Four studies focused on adolescent girls, aged from 9 to 20 years old, and 3 on university students aged from 17 to 26 years. Five studies were implemented in urban areas and 2 in rural areas. Health education interventions proved to be effective in increasing uptake, awareness, and acceptance of the HPV vaccine. The barriers included among others: cost, lack of awareness, and cultural barriers. Conclusion Observations from this study outline immediate action for policymakers to educate and encourage the young population toward HPV vaccination. Future programs should be aimed at different population groups and be adjusted according to their special characteristics and needs. Attention should be given to the male population and marginalized groups. The involvement of various stakeholders proved to be beneficial, and it is highly recommended.
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Affiliation(s)
- Eleni Krokidi
- Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, Netherlands
- Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal, India
| | - Arathi P. Rao
- Department of Health Policy, Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal, India
| | - Elena Ambrosino
- Institute for Public Health Genomics, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, Netherlands
| | - Pierre P. M. Thomas
- Institute for Public Health Genomics, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, Netherlands
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Rajkhowa P, Patil DS, Dsouza SM, Narayanan P, Brand H. Evidence on factors influencing HPV vaccine implementation in South Asia: A scoping review. Glob Public Health 2023; 18:2288269. [PMID: 38063361 DOI: 10.1080/17441692.2023.2288269] [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: 06/08/2023] [Accepted: 11/08/2023] [Indexed: 12/18/2023]
Abstract
Cervical cancer is a significant public health concern globally, with low and middle-income countries bearing the highest burden, specifically the South Asian region. Therefore, the current scoping review aimed to highlight the factors influencing the implementation of human papillomavirus (HPV) vaccination in South Asia. Adopting the 'Arksey and O'Malley and Levac et al.' methodology, multiple electronic databases were searched to identify relevant records. The results were narratively synthesised and discussed, adopting the Consolidated Framework for Implementation Research (CFIR) model. We identified 527 records, which were assessed for eligibility based on title, abstract, and full text by three reviewers, followed by data extraction of 29 studies included for analysis in the review. Implementing HPV vaccination programs in South Asia faces various challenges, such as economic, health system, financial, health literacy, and sociocultural factors that hinder their successful implementation. To successfully implement the vaccine, a tailored risk communication strategy is necessary for these countries. Knowledge gained from the experience of South Asian nations in implementing the HPV vaccine can assist in policymaking in similar healthcare for advancing the implementation of HPV vaccination.
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Affiliation(s)
- Priyobrat Rajkhowa
- Department of Health Policy, Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal, Karnataka, India
- Department of International Health, Care and Public Health Research Institute - CAPHRI, Faculty of Health Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
| | - Divya Sussana Patil
- Public Health Evidence South Asia, Department of Health Information, Prasanna School of Public Health (PSPH), Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Sherize Merlin Dsouza
- Department of Health Policy, Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal, Karnataka, India
- Department of International Health, Care and Public Health Research Institute - CAPHRI, Faculty of Health Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
| | - Prakash Narayanan
- Department of Health Policy, Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Helmut Brand
- Department of Health Policy, Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal, Karnataka, India
- Department of International Health, Care and Public Health Research Institute - CAPHRI, Faculty of Health Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
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Marfo EA, King KD, Adjei CA, MacDonald SE. Features of human papillomavirus vaccination education strategies in low- and middle-income countries: a scoping review. Public Health 2022; 213:61-67. [PMID: 36371953 DOI: 10.1016/j.puhe.2022.09.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 09/05/2022] [Accepted: 09/17/2022] [Indexed: 11/13/2022]
Abstract
OBJECTIVE We aimed to describe studies on human papillomavirus (HPV) vaccination education strategies from low- and middle-income countries in the published literature that could be applicable in Sub-Sahara Africa. STUDY DESIGN This scoping review was guided by Arksey and O'Malley's methodological framework advanced by Levac et al. METHODS We searched four electronic health sciences databases for relevant reports published between January 2006 and January 2021. Two reviewers screened for inclusion and extracted data for analysis and synthesis. Descriptive statistics and narrative descriptions were used to summarize the findings. RESULTS The database search retrieved 1757 reports, of which 48 were from low- and middle-income countries and met the inclusion criteria. Of these, there were 39 interventional studies (81.3%). Less than one-fifth of the studies (n = 9) reported a theoretical basis for their strategies. Most strategies sought to improve knowledge and awareness about HPV (75%, n = 36), whereas outcomes for the remaining studies were related to increasing HPV vaccine acceptability. HPV education strategies (1) primarily targeted females, (2) were mostly provided by health professionals, and (3) used various modalities of learning, including in-person sessions, text-based materials, media, theater, and online delivery. CONCLUSIONS HPV educational strategies are underresearched in most LMICs, suggesting the need for more primary observational, interventional, and experimental research, as well as program evaluations, focused on HPV educational strategies and theoretically informed. Once additional studies are added to the body of evidence, it will be valuable to review and synthesize diverse sources of evidence to determine what educational strategies are most useful and have the greatest impact on HPV vaccination in these settings, particularly Sub-Saharan Africa.
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Affiliation(s)
- E A Marfo
- Faculty of Nursing, University of Alberta, Edmonton, Alberta, Canada.
| | - K D King
- Faculty of Nursing, University of Alberta, Edmonton, Alberta, Canada
| | - C A Adjei
- School of Nursing and Midwifery, University of Ghana, Legon, Accra, Ghana
| | - S E MacDonald
- Faculty of Nursing, University of Alberta, Edmonton, Alberta, Canada
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Huang Y, Chen C, Wang L, Wu H, Chen T, Zhang L. HPV Vaccine Hesitancy and Influencing Factors among University Students in China: A Cross-Sectional Survey Based on the 3Cs Model. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:14025. [PMID: 36360905 PMCID: PMC9657119 DOI: 10.3390/ijerph192114025] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/25/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
The burden of disease caused by cervical cancer ranked second among female tumors in China. The HPV vaccine has been proven to be a cost-effective measure to prevent cervical cancer, but the vaccination rate remained low to date among university students. This study aimed to understand the status quo of HPV vaccine hesitancy among university students across China during the COVID-19 pandemics and systematically analyze determinants of HPV vaccine hesitancy based on the WHO 3Cs model. Cross-sectional data were collected using an online survey of female university students in four cities across China in June 2022. Multinomial logistic regression was adopted to determine factors influencing vaccine hesitancy based on the 3Cs model with three dimensions, namely complacency, convenience, and confidence. Among 1438 female university students surveyed in this study, 89.7% did not hesitate to vaccinate against HPV, only 8.9% hesitated to some extent, and 1.4% refused to vaccinate. The actual vaccination rate for the HPV vaccine was 34.2%. Based on the 3Cs model, this study found that the trust on the efficacy of vaccines, risk perception of being infected by HPV, price, and distance/time were influencing factors of vaccine hesitancy. Knowledge of the HPV vaccine and sociodemographic characteristics, such as education levels, were also statistically relevant. Therefore, it is recommended that relevant scientific knowledge on cervical cancer and the HPV vaccine should be spread on campus, the vaccination appointment procedure should be simplified, and the affordability of vaccination should be increased through strategic purchasing or providing subsidies, so as to reduce HPV vaccine hesitancy.
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Affiliation(s)
- Yan Huang
- Center for Chinese Public Administration Research, School of Government, Sun Yat-sen University, Guangzhou 510275, China
| | - Cheng Chen
- School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China
- National Institute of Hospital Administration, National Health Commission, Beijing 100044, China
| | - Lei Wang
- School of Public Administration and Emergency Management, Institute of Public Policy, Jinan University, Guangzhou 510632, China
| | - Huamei Wu
- Shanghai Urban Construction Vocational College, Shanghai 200438, China
| | - Ting Chen
- School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Luying Zhang
- School of Public Health, Fudan University, Shanghai 200032, China
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Shah PM, Ngamasana E, Shetty V, Ganesh M, Shetty AK. Knowledge, Attitudes and HPV Vaccine Intention Among Women in India. J Community Health 2022; 47:484-494. [PMID: 35182294 DOI: 10.1007/s10900-022-01072-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/25/2022] [Indexed: 11/28/2022]
Abstract
In India, cervical cancer associated with human papillomavirus (HPV) infection is a leading cause of cancer-related mortality among women. However, uptake of the vaccine in India is low. We assessed knowledge and attitudes towards HPV, assess participants' willingness to accept the vaccination for themselves and their children, and determine factors associated with intention to receive the HPV vaccine among women in Mangalore, India. This cross-sectional study surveyed a convenient sample of 237 women aged 18-45 years using a semi-structured questionnaire. All respondents reported being aware of HPV infection. However, 22.36% (n = 53) of the respondents have never heard about genital warts and 18.57% (n = 44) have never heard about HPV vaccine. Participants displayed good general knowledge of HPV infection (median score, 1.26; Interquartile Range (IQR): 1.04-1.52) and average knowledge of HPV vaccine (e.g., median score, 1.18; IQR: 0.73-1.45). HPV general knowledge and vaccine knowledge were associated with intention to receive the HPV vaccine and recommend it to children. Participant awareness of the HPV vaccine predicted vaccine intent for themselves. Participants' willingness to recommend the vaccine for their children was associated with older age, married status, having one or more children, and having a college education. Lack of awareness about genital warts was strongly associated with participants' refusal to get the HPV vaccine or recommend it for their own children (Relative Risk Ratio RRR: 12.21; 95% C.I.: 2.33-63.99). Our study validated the questionnaire as a reliable tool for assessing HPV and HPV vaccine knowledge, attitudes, awareness, and vaccine intentions in women aged 18-45 years. Public health education should focus on increasing awareness of genital warts as a sequela of HPV, as well as promote awareness of role and safety of HPV vaccination in -children.
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Affiliation(s)
- Pooja M Shah
- Department of Pediatrics, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Emery Ngamasana
- Department of Public Health Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Veena Shetty
- Department of Microbiology, NITTE (Deemed To Be University), K.S. Hegde Medical College and Hospital, Mangalore, India.
| | | | - Avinash K Shetty
- Department of Pediatrics, Wake Forest School of Medicine, Winston-Salem, NC, USA.
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Zahumensky J, Psenkova P, Melnikova L, Drabiscakova P, Nadzamova A, Kacerovsky M, Simetka O, Dosedla E. Religion Affects Future Female Doctors' Approach to HPV Vaccination in Czech and Slovak Republics. JOURNAL OF CANCER EDUCATION : THE OFFICIAL JOURNAL OF THE AMERICAN ASSOCIATION FOR CANCER EDUCATION 2021; 36:880-891. [PMID: 33791949 DOI: 10.1007/s13187-021-01995-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/09/2021] [Indexed: 06/12/2023]
Abstract
The objective of this study is to summarize the factors, including religion, affecting an individual's decision to get vaccinated or reject vaccination. Anonymous questionnaire-based electronic study is conducted in all faculties of medicine in Czech and Slovak republics. One thousand four hundred and six (1406) questionnaires were analyzed. Responders not practicing any religion received vaccination more often and would recommend vaccination more often. Catholic religion was the most important demographic factor affecting the rate of vaccination. In the group of Catholic female students, 21.9% were vaccinated. In the group of non-Catholic female students, 55.5% were vaccinated. In conclusion, female medical students' approach to vaccination depends, among other factors, on their individual beliefs.
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Affiliation(s)
- Jozef Zahumensky
- 2nd Department of Gynecology and Obstetrics, University Hospital Bratislava and Comenius University, Ruzinovska 6, 82606, Bratislava, Slovakia
| | - Petra Psenkova
- 2nd Department of Gynecology and Obstetrics, University Hospital Bratislava and Comenius University, Ruzinovska 6, 82606, Bratislava, Slovakia.
| | - Livia Melnikova
- 2nd Department of Gynecology and Obstetrics, University Hospital Bratislava and Comenius University, Ruzinovska 6, 82606, Bratislava, Slovakia
| | - Paula Drabiscakova
- 2nd Department of Gynecology and Obstetrics, University Hospital Bratislava and Comenius University, Ruzinovska 6, 82606, Bratislava, Slovakia
| | - Alexandra Nadzamova
- 2nd Department of Gynecology and Obstetrics, University Hospital Bratislava and Comenius University, Ruzinovska 6, 82606, Bratislava, Slovakia
| | - Marian Kacerovsky
- Department of Obstetrics and Gynecology, University Hospital Hradec Kralove, Sokolska 581, 50005, Hradec Kralove, Czech Republic
| | - Ondrej Simetka
- Department of Gynecology and Obstetrics, University Hospital Ostrava, 17. listopadu 1790/5, 70852, Ostrava, Czech Republic
| | - Erik Dosedla
- Department of Obstetrics and Gynecology, Pavel Jozef Safarik University, 1st Private Hospital Kosice-Saca Inc., Trieda SNP 1, 04011, Kosice-Saca, Slovakia
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Shetty S, Shetty V, Badiger S, Shetty AK. An exploratory study of undergraduate healthcare student perspectives regarding human papillomavirus and vaccine intent in India. WOMEN'S HEALTH 2021; 17:17455065211055304. [PMID: 34713762 PMCID: PMC8558803 DOI: 10.1177/17455065211055304] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Objective: Safe and effective human papillomavirus vaccines are available against cervical cancer and other human papillomavirus–associated diseases. Vaccine uptake is low in India given lack of universal vaccination programme. This exploratory study describes the medical, dental and nursing undergraduate student perspectives about human papillomavirus and intentions to receive the vaccine. Methods: Using a cross-sectional, explorative study design, we conducted two focus group discussions among a convenience sample of male (n = 11) and female (n = 9) student group aged ⩾18 years, respectively, at a medical college in South India. The focus group discussion sessions were recorded, transcribed and analysed using thematic content analysis. Results: Over half of the students showed adequate knowledge of cervical cancer and human papillomavirus. Medical students had much in-depth knowledge of cervical cancer, vaccine cost and its side effects compared to dental and nursing students. Human papillomavirus vaccine knowledge was relatively less among males compared to females; most male participants were unaware of the availability of the human papillomavirus vaccine. Intention to receive the vaccine was higher among females than males. All the participants had positive attitude in creating awareness in the community and making the vaccine cost-effective. Cultural concerns and high vaccine cost were cited major barriers for vaccine uptake. Suggestion of physician recommendation in promotion of human papillomavirus vaccine uptake was an emerging theme. Conclusion: Educating male students and those enrolled in dental and nursing courses about human papillomavirus vaccine, addressing cultural concerns and advocating provider recommendation for promoting vaccine uptake are potential strategies to improve future human papillomavirus vaccine intent among students and recommendations to patients in their role as future healthcare provider.
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Affiliation(s)
- Seemitha Shetty
- K S Hegde Medical Academy (KSHEMA) and NITTE (Deemed to be University), Mangaluru, India
| | - Veena Shetty
- K S Hegde Medical Academy (KSHEMA) and NITTE (Deemed to be University), Mangaluru, India
- Department of Microbiology, K S Hegde Medical Academy (KSHEMA) and NITTE (Deemed to be University), Mangaluru, India
| | - Sanjeev Badiger
- K S Hegde Medical Academy (KSHEMA) and NITTE (Deemed to be University), Mangaluru, India
- Department of Community Medicine, K S Hegde Medical Academy (KSHEMA) and NITTE (Deemed to be University), Mangaluru, India
| | - Avinash K Shetty
- Department of Pediatrics, Wake Forest School of Medicine and Brenner Children’s Hospital, Winston-Salem, NC, USA
- Office of Global Health and Department of Pediatrics, Wake Forest School of Medicine and Brenner Children’s Hospital, Winston-Salem, NC, USA
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