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Nogueira-Rodrigues A, Flores MG, Macedo Neto AO, Braga LAC, Vieira CM, de Sousa-Lima RM, de Andrade DAP, Machado KK, Guimarães APG. HPV vaccination in Latin America: Coverage status, implementation challenges and strategies to overcome it. Front Oncol 2022; 12:984449. [PMID: 36387151 PMCID: PMC9645205 DOI: 10.3389/fonc.2022.984449] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 10/10/2022] [Indexed: 12/24/2022] Open
Abstract
Cervical cancer remains a leading cause of morbidity and mortality amongst females in Latin America (LATAM). Cervical cancer is a preventable disease and HPV vaccination is a main key strategy towards its elimination. This study analyzes HPV vaccine implementation current status and the main barriers to achieve adequate coverage in the region. Data from the nineteen sovereign states of LATAM (comprised of all Portuguese and Spanish-speaking nations located south of the United States) were collected, including year of HPV vaccine implementation, gender and age targets, the number of doses included in the public program and coverage by dose. Sixteen out of the 19 evaluated countries have already implemented HPV vaccination programs. However, despite its proven efficacy and safety, HPV vaccine uptake in LATAM has been lower than expected. There is an evident decline in adhesion, mainly regarding the second dose. Several reasons are probably involved, of note: limited knowledge of HPV and HPV vaccine, misguided safety concerns, high cost, cultural barriers, and the Covid19 pandemic. Proper strategies to overcome these barriers are needed to ensure successful uptake. Effective policies are: adopting the one dose schedule, delivering the vaccine on both health center and schools, and advising health professionals to recommend the vaccine. Further research regarding HPV vaccine hesitancy in Latin America is needed.
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Affiliation(s)
- Angélica Nogueira-Rodrigues
- Department of Internal Medicine, Federal University of Minas Gerais, Belo Horizontel, Brazil
- *Correspondence: Angélica Nogueira-Rodrigues,
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Perdomo S, López J, Torres-Ibargüen MZ, Puerto-Jiménez DN, de Vries E. Modelling the Reduction in Cancer Incidence After Variations in the Prevalence of Tobacco Consumption in Colombia in the Period 2016-2050. Cancer Control 2022; 29:10732748221121390. [DOI: 10.1177/10732748221121390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Objective To evaluate the potential impact of tobacco reduction on future cancer incidence in Colombia Introduction Colombia has implemented multiple actions that led to reducing smoking prevalence in recent years. However, the numbers of cancer cases and deaths associated with smoking exposure remain high highlighting the importance of maintaining efforts to reduce and keep smoking prevalence low. Methods We performed a theoretical modeling exercise, projecting expected changes in the incidence of four cancers between 2016 and 2050 under two simulated scenarios of smoking reduction. Results A cumulative decline of 10% in the prevalence of smoking, a percentage in line with current cigarette taxation policies, will decrease cancer incidence in 2050 by 3.2%, .5%, .2% and .2% of lung, liver, cervical and colorectal cancer incidence, respectively. Complete elimination of tobacco consumption will reduce these by 39.1%, 6.1%, 2.2% and 2.3% respectively, by 2050. Conclusion These results highlight the importance of continuity and reinforcement of current tobacco control programs, including increasing taxation, to further reduce the prevalence of tobacco smoking and reduce cancer cases and deaths in the coming decades.
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Affiliation(s)
- Sandra Perdomo
- Faculty of Medicine, Nutrition, Genetics and Metabolism Group, Universidad El Bosque, Bogotá, Colombia
- Genomic Epidemiology Branch, International Agency for Research on Cancer, Lyon, France
| | - Julián López
- Faculty of Medicine, Nutrition, Genetics and Metabolism Group, Universidad El Bosque, Bogotá, Colombia
- Grupo de Investigación en Salud Pública, Universidad del Rosario, Bogotá, Colombia
| | | | | | - Esther de Vries
- Department of Clinical Epidemiology and Biostatistics, Faculty of Medicine, Pontificia Universidad Javeriana, Bogotá, Colombia
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Sargazi N, Takian A, Yaseri M, Daroudi R, Ghanbari Motlagh A, Nahvijou A, Zendehdel K. Mothers' preferences and willingness-to-pay for human papillomavirus vaccines in Iran: A discrete choice experiment study. Prev Med Rep 2021; 23:101438. [PMID: 34189022 PMCID: PMC8220373 DOI: 10.1016/j.pmedr.2021.101438] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 05/22/2021] [Accepted: 05/31/2021] [Indexed: 11/05/2022] Open
Abstract
The relative importance for serious side effects was the highest among all attributes. Mothers express more WTP for the quadrivalent vaccine compared to bivalent due to its protection against genital warts. Quadrivalent vaccination could be the most suitable candidate for implementation in the national immunization schedule.
This study aimed to identify mothers’ preferences and willingness-to-pay (WTP) for human papillomavirus (HPV) vaccines (in this case, bivalent and quadrivalent) in Iran. We used a discrete choice experiment (DCE) method to present mothers with choices between two hypothetical profiles of vaccines, described by combinations of five attributes, each with two or three levels. We analyzed the DCE results using conditional logistic regression and measured WTP estimates for each attribute. Our response rate was 53.96%, while the completion rate for questioner was 93.57%. We identified protection against cervical cancer, protection against genital warts, protection duration, serious side effects, and cost to influence mothers’ preferences for HPV vaccination. The relative importance for serious side effects was the highest among all attributes. Mothers’ WTP for bivalent and quadrivalent HPV vaccines was in US $ −432 (US $1 = IRR 42,000) and US $ 380, respectively. Quadrivalent vaccination could be the most suitable candidate for implementing the national immunization schedule. The reason is that mothers express more WTP for the quadrivalent vaccine than bivalent due to its protection against genital warts.
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Affiliation(s)
- Nasrin Sargazi
- Department of Health Management, Policy and Economics, School of Public Health, Tehran University of Medical Sciences, Tehran (TUMS), Iran
| | - Amirhossein Takian
- Department of Health Management, Policy and Economics, School of Public Health, Tehran University of Medical Sciences, Tehran (TUMS), Iran.,Department of Global Health and Public Policy, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.,Health Equity Research Center (HERC), Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Yaseri
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Rajabali Daroudi
- Department of Health Management, Policy and Economics, School of Public Health, Tehran University of Medical Sciences, Tehran (TUMS), Iran
| | - Ali Ghanbari Motlagh
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Mortazavi (Jorjiani) Radiation Oncology Center, Imam Hossein Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Azin Nahvijou
- Cancer Research Center of Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Kazem Zendehdel
- Cancer Research Center of Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran.,Cancer Biology Research Center, of Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran.,Breast Diseases Research Center, Cancer Institute of Iran, Tehran University of Medical Sciences, Tehran, Iran
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