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Zigras T, Mayrand MH, Bouchard C, Salvador S, Eiriksson L, Almadin C, Kean S, Dean E, Malhotra U, Todd N, Fontaine D, Bentley J. Canadian Guideline on the Management of a Positive Human Papillomavirus Test and Guidance for Specific Populations. Curr Oncol 2023; 30:5652-5679. [PMID: 37366908 DOI: 10.3390/curroncol30060425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 05/26/2023] [Accepted: 05/29/2023] [Indexed: 06/28/2023] Open
Abstract
The purpose of this paper is to provide evidence-based guidance on the management of a positive human papilloma virus (HPV) test and to provide guidance around screening and HPV testing for specific patient populations. The guideline was developed by a working group in collaboration with the Gynecologic Oncology Society of Canada (GOC), Society of Colposcopists of Canada (SCC), and the Canadian Partnership Against Cancer. The literature informing these guidelines was obtained through a systematic review of relevant literature by a multi-step search process led by an information specialist. The literature was reviewed up to July 2021 with manual searches of relevant national guidelines and more recent publications. The quality of the evidence and strength of recommendations were developed using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) framework. The intended users of this guideline include primary care providers, gynecologists, colposcopists, screening programs, and healthcare facilities. The implementation of the recommendations will ensure an optimum implementation of HPV testing with a focus on the management of positive results. Recommendations for appropriate care for underserved and marginalized groups are made.
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Affiliation(s)
- Tiffany Zigras
- Trillium Health Partners, Department of Obstetrics and Gynecology, University of Toronto, Toronto, ON M5G 1E2, Canada
| | - Marie-Hélène Mayrand
- Département d'obstétrique-gynécologie, Université de Montréal, Montreal, QC H3C 3J7, Canada
| | - Celine Bouchard
- Clinique de Researche en Sante des femmes, Quebec City, QC G1V 3M7, Canada
| | - Shannon Salvador
- Department of Obstetrics and Gynecology, McGill University, Montreal, QC H3A 0G4, Canada
| | - Lua Eiriksson
- Department of Obstetrics and Gynecology, McMaster University, Hamilton, ON L8S 4L8, Canada
| | - Chelsea Almadin
- Health Innovation and Evaluation Hub, University of Montreal Hospital Research Centre, Montreal, QC H3Z 2H5, Canada
| | - Sarah Kean
- Department of Obstetrics, Gynecology and Reproductive Sciences, Winnipeg, MB R3J 3T7, Canada
| | - Erin Dean
- Department of Obstetrics, Gynecology and Reproductive Sciences, Winnipeg, MB R3J 3T7, Canada
| | - Unjali Malhotra
- Office of the Chief Medical Officer, First Nations Health Authority, West Vancouver, BC V7T 1A2, Canada
| | - Nicole Todd
- Department of Obstetrics and Gynecology UBC, Vancouver, BC V5Z 4E1, Canada
| | - Daniel Fontaine
- Department of Pathology and Laboratory Medicine, Valley Regional Hospital, Kentville, NS B4N 5E3, Canada
| | - James Bentley
- Department of Obstetrics and Gynecology, Dalhousie University, Halifax, NS B3H 4R2, Canada
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Zheng LL, Chen SF, Yang F, Wang WH, Xu C, Zheng LY. High-risk HPV prevalence and genotype distribution among women in Liaocheng, Shandong Province, China from 2016 to 2022. Front Public Health 2023; 11:1145396. [PMID: 37064671 PMCID: PMC10098111 DOI: 10.3389/fpubh.2023.1145396] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 03/01/2023] [Indexed: 04/18/2023] Open
Abstract
Human papilloma virus (HPV) infection and its associated disease are major problems affecting millions of individuals around the world. The distribution of HPV genotypes is specific to different areas and different populations. Therefore, understanding the prevalence and genotype distribution of HPV in different populations in different geographical regions is essential to optimize HPV vaccination strategies and to maximize vaccine effects. In this study, 34,076 women from January 2016 to July 2022 were retrospectively analyzed at Liaocheng People's Hospital. Of these, 7540 women were high-risk HPV positive and the infection rate was 22.13%. The top ten genotypes were as follows in descending order: HPV16, HPV52, HPV58, HPV53, HPV39, HPV59, HPV66, HPV51, HPV18, and HPV56 and the least frequent genotypes were, in order, HPV 26, HPV45, and HPV82. The HPV16 positive infection rate was 25.37% and was reduced with the increase in the number of individuals who had undergone HPV screening. The HPV52 infection rate increased with increasing numbers of individuals undergoing HPV screening, and then remained unchanged. The proportion of 20-29-year-olds among all positive women began to decrease since the vaccine was available in 2018. The 30-39-year-old group accounted for the highest percentage of positive women, and the 50-59-year-old group of HPV-positive women with cervical cancer accounted for most infections. This study confirmed that HPV16, HPV52, HPV 58, and HPV53 is widely distributed in this population and the total HR-HPV infection rate remains high in this region. Our findings indicate that prevention of HPV infection in this region still faces important challenges.
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Affiliation(s)
- Li-li Zheng
- Central Laboratory of Liaocheng Peoples' Hospital, Liaocheng, Shandong, China
| | - Shuang-feng Chen
- Central Laboratory of Liaocheng Peoples' Hospital, Liaocheng, Shandong, China
| | - Fei Yang
- Department of Clinical Laboratory Liaocheng City Dongchangfu District Maternal and Child Health Hospital, Liaocheng, Shandong, China
| | - Wei-hua Wang
- Central Laboratory of Liaocheng Peoples' Hospital, Liaocheng, Shandong, China
| | - Cong Xu
- Central Laboratory of Liaocheng Peoples' Hospital, Liaocheng, Shandong, China
| | - Li-yuan Zheng
- State Key Laboratory of Microbial Technology, and Marine Biotechnology Research Center, Shandong University, Qingdao, China
- *Correspondence: Li-yuan Zheng
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Wang WV, Kothari S, Skufca J, Giuliano AR, Sundström K, Nygård M, Koro C, Baay M, Verstraeten T, Luxembourg A, Saah AJ, Garland SM. Real-world impact and effectiveness of the quadrivalent HPV vaccine: an updated systematic literature review. Expert Rev Vaccines 2022; 21:1799-1817. [PMID: 36178094 DOI: 10.1080/14760584.2022.2129615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
INTRODUCTION Human papillomavirus (HPV) infection, which poses significant disease burden, is decreasing following implementation of vaccination programs. Synthesized evidence on HPV vaccine real-world benefit was published in 2016. However, long-term impact of vaccination, and how vaccination programs influence infection rates and disease outcomes, requires further examination. AREAS COVERED We systematically reviewed observational studies on HPV vaccination within MEDLINE, EMBASE, and Google Scholar from 2016 to 2020, involving 14 years of follow-up data. We identified 138 peer-reviewed publications reporting HPV vaccine impact or effectiveness. Outcomes of interest included rates of infection at different anatomical sites and incidence of several HPV-related disease endpoints. EXPERT OPINION The expansion of HPV vaccination programs worldwide has led to a reduction in genital infection and significant decreases in incidence of HPV-related disease outcomes. Therefore, the WHO has set goals for the elimination of cervical cancer as a public health concern. To track progress toward this requires an understanding of the effectiveness of different vaccination initiatives. However, the impact on males, and potential benefit of gender-neutral vaccination programs have not been fully explored. To present an accurate commentary on the current outlook of vaccination and to help shape policy therefore requires a systematic review of available data.
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Affiliation(s)
- Wei Vivian Wang
- Center for Observational and Real-World Evidence, Merck Sharp & Dohme LLC, Rahway, NJ, USA
| | - Smita Kothari
- Center for Observational and Real-World Evidence, Merck Sharp & Dohme LLC, Rahway, NJ, USA
| | - Jozica Skufca
- Epidemiology & Pharmacovigilance, P95, Leuven, Belgium
| | - Anna R Giuliano
- Center for Immunization and Infection Research in Cancer, Moffitt Cancer Center, Tampa, FL USA
| | - Karin Sundström
- Department of Laboratory Medicine, Karolinska Institutet, Sweden
| | - Mari Nygård
- Department of Research, Cancer Registry of Norway, Oslo, Norway
| | - Carol Koro
- Center for Observational and Real-World Evidence, Merck Sharp & Dohme LLC, Rahway, NJ, USA
| | - Marc Baay
- Epidemiology & Pharmacovigilance, P95, Leuven, Belgium
| | | | - Alain Luxembourg
- Center for Observational and Real-World Evidence, Merck Sharp & Dohme LLC, Rahway, NJ, USA
| | - Alfred J Saah
- Center for Observational and Real-World Evidence, Merck Sharp & Dohme LLC, Rahway, NJ, USA
| | - Suzanne M Garland
- Department of Obstetrics and Gynecology, The University of Melbourne, Royal Women's Hospital (RWH), Murdoch Childrens Research Institute, Melbourne, Australia
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Portnoy A, Nygård M, Trogstad L, Kim JJ, Burger EA. Impact of Delaying Effective and Cost-Effective Policy Decisions: An Example From Cervical Cancer Prevention in Norway. MDM Policy Pract 2022; 7:23814683211071093. [PMID: 35024449 PMCID: PMC8744166 DOI: 10.1177/23814683211071093] [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: 04/08/2021] [Accepted: 12/17/2021] [Indexed: 11/19/2022] Open
Abstract
Introduction. Delayed implementation of evidence-driven
interventions has consequences that can be formally evaluated. In Norway,
programs to prevent cervical cancer (CC)—screening and treatment of precancerous
lesions and prophylactic vaccination against human papillomavirus (HPV)
infection—have been implemented, but each encountered delays in policy
implementation. To examine the effect of these delays, we project the outcomes
that would have been achieved with timely implementation of two policy changes
compared with the de facto delays in implementation (in Norway).
Methods. We used a multimodeling approach that combined HPV
transmission and cervical carcinogenesis to estimate the health outcomes and
timeline for CC elimination associated with the implementation of two CC
prevention policy decisions: a multicohort vaccination program of women up to
age 26 years with bivalent vaccine in 2009 compared with actual “delayed”
implementation in 2016, and a switch from cytology to primary HPV-based testing
in 2015 compared with “delayed” rollout in 2020. Results. Timely
implementation of two policy changes compared with current Norwegian prevention
policy timeline could have averted approximately 970 additional cases (range of
top 10 sets: 830–1060) and accelerated the CC elimination timeline by around 4
years (from 2039 to 2035). Conclusions. If delaying implementation
of effective and cost-effective interventions is being considered, the
decision-making process should include quantitative analyses on the effects of
delays.
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Affiliation(s)
- Allison Portnoy
- Center for Health Decision Science, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Mari Nygård
- Department of Research, Cancer Registry of Norway, Oslo, Norway
| | - Lill Trogstad
- The Norwegian Institute of Public Health, Oslo, Norway
| | - Jane J Kim
- Center for Health Decision Science, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Emily A Burger
- Center for Health Decision Science, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
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Wang W, Kothari S, Baay M, Garland SM, Giuliano AR, Nygård M, Velicer C, Tota J, Sinha A, Skufca J, Verstraeten T, Sundström K. Real-world impact and effectiveness assessment of the quadrivalent HPV vaccine: a systematic review of study designs and data sources. Expert Rev Vaccines 2021; 21:227-240. [PMID: 34845951 DOI: 10.1080/14760584.2022.2008243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Vaccine effectiveness and impact studies are typically observational, generating evidence after vaccine launch in a real-world setting. For human papillomavirus (HPV) vaccination studies, the variety of data sources and methods used is pronounced. Careful selection of study design, data capture and analytical methods can mitigate potential bias in such studies. AREAS COVERED We systematically reviewed the different study designs, methods, and data sources in published evidence (1/2007-3/2020), which assessed the quadrivalent HPV vaccine effectiveness and impact on cervical/cervicovaginal, anal, and oral HPV infections, anogenital warts, lesions in anus, cervix, oropharynx, penis, vagina or vulva, and recurrent respiratory papillomatosis. EXPERT OPINION The rapid growth in access to real-world data allows global monitoring of effects of different public health interventions, including HPV vaccination programs. But the use of data which are not collected or organized to support research also underscore a need to develop robust methodology that provides insight of vaccine effects and consequences of different health policy decisions. To achieve the WHO elimination goal, we foresee a growing need to evaluate HPV vaccination programs globally. A critical appraisal summary of methodology used will provide timely guidance to researchers who want to initiate research activities in various settings.
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Affiliation(s)
- Wei Wang
- Center for Observational and Real-world Evidence, Merck & Co. Inc., Kenilworth, NJ, USA
| | - Smita Kothari
- Center for Observational and Real-world Evidence, Merck & Co. Inc., Kenilworth, NJ, USA
| | - Marc Baay
- P95 Epidemiology & Pharmacovigilance, Leuven, Belgium
| | - Suzanne M Garland
- Department Obstetrics and Gynaecology, University of Melbourne, Centre Women's Infectious Diseases Research, Royal Women's Hospital, and Infection & Immunity Murdoch Children's Research Institute, Parkville, Australia
| | - Anna R Giuliano
- Center for Immunizaton and Infection Research in Cancer, Moffitt Cancer Center, Tampa, FL, USA
| | - Mari Nygård
- Department of Research, Cancer Registry of Norway, Oslo, Norway
| | - Christine Velicer
- Center for Observational and Real-world Evidence, Merck & Co. Inc., Kenilworth, NJ, USA
| | - Joseph Tota
- Center for Observational and Real-world Evidence, Merck & Co. Inc., Kenilworth, NJ, USA
| | - Anushua Sinha
- Center for Observational and Real-world Evidence, Merck & Co. Inc., Kenilworth, NJ, USA
| | - Jozica Skufca
- P95 Epidemiology & Pharmacovigilance, Leuven, Belgium
| | | | - Karin Sundström
- Department of Laboratory Medicine, Division of Pathology, Karolinska Institutet, Stockholm, Sweden
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Tang SY, Liao YQ, Hu Y, Shen HY, Wan YP, Wu YM. HPV Prevalence and Genotype Distribution Among Women From Hengyang District of Hunan Province, China. Front Public Health 2021; 9:710209. [PMID: 34805062 PMCID: PMC8602211 DOI: 10.3389/fpubh.2021.710209] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 08/19/2021] [Indexed: 11/13/2022] Open
Abstract
Most cervical cancers were closely associated with human papillomavirus (HPV) infections. Therefore, understanding the ecological diversity of HPV prevalence and genotype distribution among various populations in different geographical regions was essential for optimizing HPV vaccination and maximizing the vaccination effects. A total of 12,053 patient data from the three-level hospitals in Hengyang city were retrospectively analyzed. In this study, the HPV prevalence was 10.16% overall, and the multiple-type infection rate was 1.83%. The HR-HPV infection rate was 8.52%. The top six HPV genotypes were as follows in descending order: HPV16, HPV58, HPV52, HPV39, HPV51, and HPV53. The HPV prevalence in the group above 60 years old was the most, and their HR-HPV infection rate corresponded to the most too. The infection rates of HPV and HR-HPV among outpatients were both lower than those among the hospitalized-patients, respectively. Among the hospitalized-patients, the infection rates of HPV and HR-HPV among the 50–60 years group were the most in both. The HR-HPV ratio-in-positive among HPV-positive patients with the histopathologic examination was higher than that among those patients without. Among 52 HPV-positive patients with cervical squamous carcinoma, the ratio-in-positive of HPV16 was 61.54%. This study demonstrated that the HPV prevalence varied with age among women from Hengyang district of Hunan province in China and showed that HPV16, HPV58, HPV52, HPV39, HPV51, and HPV53 genotypes were more popularly distributed in this region, which could provide the experimental basis for Chinese public health measures on cervical cancer prevention.
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Affiliation(s)
- Shuang-Yang Tang
- Institute of Pathogenic Biology, School of Basic Medicine Sciences, Hengyang Medical School, University of South China, Hengyang, China
| | - Ya-Qi Liao
- Institute of Pathogenic Biology, School of Basic Medicine Sciences, Hengyang Medical School, University of South China, Hengyang, China
| | - Yu Hu
- Institute of Pathogenic Biology, School of Basic Medicine Sciences, Hengyang Medical School, University of South China, Hengyang, China
| | - Hai-Yan Shen
- Institute of Pathogenic Biology, School of Basic Medicine Sciences, Hengyang Medical School, University of South China, Hengyang, China
| | - Yan-Ping Wan
- Institute of Pathogenic Biology, School of Basic Medicine Sciences, Hengyang Medical School, University of South China, Hengyang, China
| | - Yi-Mou Wu
- Institute of Pathogenic Biology, School of Basic Medicine Sciences, Hengyang Medical School, University of South China, Hengyang, China
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Freire-Salinas J, Benito R, Azueta A, Gil J, Mendoza C, Nicolás M, García-Berbel P, Algarate S, Gómez-Román J. Genotype Distribution Change After Human Papillomavirus Vaccination in Two Autonomous Communities in Spain. Front Cell Infect Microbiol 2021; 11:633162. [PMID: 34631594 PMCID: PMC8493034 DOI: 10.3389/fcimb.2021.633162] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 08/27/2021] [Indexed: 11/13/2022] Open
Abstract
Context It has been more than 10 years since the human papillomavirus (HPV) vaccination program was initiated in most advanced countries. Thus, it seems necessary to change the uterine cervical cancer screening strategy. Molecular-based tests are considered essential in this scenario. Objective We aimed to review the distribution of the HPV genotypes after the introduction of the vaccination program with Cervarix® and Gardasil 4® in two autonomous communities in Spain, looking for possible changes in distribution and the occurrence of a herd effect. Design A cross-sectional study was performed in 45,362 samples that were processed in the Cantabria and Aragon communities during the period from 2002 to 2016. We compared the genotype distribution before and after the vaccination program was initiated. Results Genotypes HPV6 and HPV11 have decreased significantly after the introduction of the vaccine. HPV16 has had a decrease, but not a significant one in the statistical analysis. However, HPV31, HPV52, and HPV45 have increased in percentage. A replacement phenomenon with other genotypes not included in the vaccine has been observed in our population. Conclusions Continued surveillance is needed to provide further indication of any changes over time in the genotypes in circulation. This will be facilitated by monitoring the genotyping results from the new model of cervical screening using primary HPV DNA testing.
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Affiliation(s)
- Javier Freire-Salinas
- Servicio de Anatomía Patológica, Hospital Universitario Marqués de Valdecilla, IDIVAL, Universidad de Cantabria, Santander, Spain
| | - Rafael Benito
- Servicio de Microbiología, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain
| | - Ainara Azueta
- Servicio de Anatomía Patológica, Hospital Universitario Marqués de Valdecilla, IDIVAL, Universidad de Cantabria, Santander, Spain
| | - Joaquina Gil
- Servicio de Microbiología, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain
| | - Claudia Mendoza
- Servicio de Microbiología, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain
| | - Montserrat Nicolás
- Servicio de Anatomía Patológica, Hospital Universitario Marqués de Valdecilla, IDIVAL, Universidad de Cantabria, Santander, Spain
| | - Pilar García-Berbel
- Servicio de Anatomía Patológica, Hospital Universitario Marqués de Valdecilla, IDIVAL, Universidad de Cantabria, Santander, Spain
| | - Sonia Algarate
- Servicio de Microbiología, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain
| | - Javier Gómez-Román
- Servicio de Anatomía Patológica, Hospital Universitario Marqués de Valdecilla, IDIVAL, Universidad de Cantabria, Santander, Spain
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Comparison of DNA and RNA sequencing of total nucleic acids from human cervix for metagenomics. Sci Rep 2021; 11:18852. [PMID: 34552145 PMCID: PMC8458301 DOI: 10.1038/s41598-021-98452-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 09/06/2021] [Indexed: 11/30/2022] Open
Abstract
Although metagenomics and metatranscriptomics are commonly used to identify bacteria and viruses in human samples, few studies directly compare these strategies. We wished to compare DNA and RNA sequencing of bacterial and viral metagenomes and metatranscriptomes in the human cervix. Total nucleic acids from six human cervical samples were subjected to DNA and RNA sequencing. The effect of DNase-treatment before reverse transcription to cDNA were also analyzed. Similarities and differences in the metagenomic findings with the three different sequencing approaches were evaluated. A higher proportion of human sequences were detected by DNA sequencing (93%) compared to RNA sequencing without (76%) and with prior DNase-treatment (11%). On the contrary, bacterial sequences increased 17 and 91 times. However, the number of detected bacterial genera were less by RNA sequencing, suggesting that only a few contribute to most of the bacterial transcripts. The viral sequences were less by RNA sequencing, still twice as many virus genera were detected, including some RNA viruses that were missed by DNA sequencing. Metatranscriptomics of total cDNA provided improved detection of mainly transcribed bacteria and viruses in cervical swabs as well as detection of RNA viruses, compared to metagenomics.
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Hansen BT, Campbell S, Nygård M. Regional differences in cervical cancer incidence and associated risk behaviors among Norwegian women: a population-based study. BMC Cancer 2021; 21:935. [PMID: 34412617 PMCID: PMC8377942 DOI: 10.1186/s12885-021-08614-w] [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: 03/08/2021] [Accepted: 07/10/2021] [Indexed: 12/09/2022] Open
Abstract
Background Cervical cancer incidence is influenced by screening and risk factors in the population. The main risk factor for cervical cancer is sexually transmitted human papillomavirus (HPV), which is sexually transmitted and thus associated with sexual behavior. Smoking, parity and hormonal contraceptive use may also be associated with cervical cancer risk. We compared incidence, screening coverage and risk behaviors for cervical cancer between health regions in Norway. Methods We obtained data on incidence of cervical cancer among Norwegian women during 1992–2016 and data on screening coverage from the Cancer Registry of Norway. We obtained data on sexual behavior and smoking from a population-based survey of 16,575 Norwegian women who were 18–45 years old in 2005. Results Cervical cancer incidence was higher in the northern and southeastern region than in the middle and western region (range in incidence per 100,000 person-years during 1992–2016; north: 10.5 to 14.6; southeast: 9.3 to 12.9; mid: 6.8 to 9.5; west: 8.4 to 10.0). The incidence decreased modestly in the north (average annual percentage change (95% confidence interval) − 1.0 (− 1.2 to − 0.7)) and southeast (− 0.7 (− 1.0 to − 0.3)), but did not change significantly in the mid (− 0.3 (− 1.0 to 0.4)) and west (− 0.3 (− 0.6 to 0.0)). Compared to the national average, women in the north had earlier sexual debut, more partners and higher prevalence of ever having had a sexually transmitted infection (STI), while the opposite was observed among women in the west. Women in the middle and southeastern regions tended to be similar to the national average for sexual behaviors. Although less pronounced, the prevalence of smoking showed regional patterns similar to that observed for sexual behaviors, while ever-use of hormonal contraceptives and cervical screening coverage was similar between regions. Conclusions There were regional differences in cervical cancer incidence during the era of nationally organized cervical screening in Norway. To some extent, these differences corresponded to regional differences in risk behavior for cervical cancer in the Norwegian female population. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08614-w.
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Affiliation(s)
- Bo T Hansen
- Department of Research, Cancer Registry of Norway, Postbox 5313 Majorstuen, 0304, Oslo, Norway.
| | - Suzanne Campbell
- Department of Research, Cancer Registry of Norway, Postbox 5313 Majorstuen, 0304, Oslo, Norway
| | - Mari Nygård
- Department of Research, Cancer Registry of Norway, Postbox 5313 Majorstuen, 0304, Oslo, Norway
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Skorstengaard M, Lynge E, Napolitano G, Blaakær J, Bor P. Risk of precancerous cervical lesions in women using a hormone-containing intrauterine device and other contraceptives: a register-based cohort study from Denmark. Hum Reprod 2021; 36:1796-1807. [PMID: 33974685 PMCID: PMC8213448 DOI: 10.1093/humrep/deab066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 02/24/2021] [Indexed: 12/16/2022] Open
Abstract
STUDY QUESTION Is the risk of high-grade precancerous cervical lesions and/or is the risk of lesion progression increased in users of a hormone-containing intrauterine device (HIUD) compared with users of other contraceptive methods. SUMMARY ANSWER Women starting use of HIUD had the same subsequent risk of cervical intraepithelial neoplasia 3+ (CIN3+) as copper IUD (CIUD) users, and both groups tended to have lower risks than oral contraceptives (OC) users. WHAT IS KNOWN ALREADY HIUDs may cause inflammatory and immunosuppressive changes that may potentially affect the risk of persistent human papillomavirus infection and precancerous cervical lesions. STUDY DESIGN, SIZE, DURATION A Danish population-based cohort study was conducted using register data from 2008 to 2011 on 26–50-year-old users of HIUD (n = 60 551), CIUD (n = 30 303), or OC (n = 165 627). PARTICIPANTS/MATERIALS, SETTING, METHODS Within each user group, women were divided into two groups; normal cytology or abnormal diagnosis before start of contraceptive use (baseline). Follow-up histology and cytology diagnoses were registered during the 5 years after baseline. Adjusted relative risks (aRR) and 95% CI were calculated for precancerous cervical lesions in HIUD users compared with CIUD and OC users. MAIN RESULTS AND THE ROLE OF CHANCE Women with normal cytology at baseline: at follow-up HIUD users had the same risk of CIN3 or higher (3+) as CIUD users; aRR 1.08 (95% CI 0.94–1.22). For the HIUD and CIUD groups compared with OCs, the risks of CIN3+ were lower: aRR 0.63 (95% CI 0.57–0.69) and aRR 0.58 (95% CI 0.52–0.65), respectively. The same was observed for CIN2 risks: aRR 0.86 (95% CI 0.76–0.96) and aRR 0.68 (95% CI 0.58–0.79) for HIUD and CIUD groups, respectively. Women with abnormal diagnosis at baseline: a lower progression risk, except for CIN2+ at baseline, was observed in HIUD users compared with OC users. Similar progression risks were found in HIUD and CIUD users. There were no differences between the three contraceptive groups in persistence or regression of present lesions. LIMITATIONS, REASONS FOR CAUTION We adjusted for age, education, and region of residence as a proxy for socio-economic factors. Data on smoking and sexual behavior were not available thus we cannot exclude some differences between the three user groups. WIDER IMPLICATIONS OF THE FINDINGS These findings suggest that women may safely use HIUDs. STUDY FUNDING/COMPETING INTEREST(S) A.P. Møller Foundation for the Advancement of Medical Science, Else and Mogens Wedell-Wedellborgs Fund, Direktør Emil C. Hertz og Hustru Inger Hertz Fund, and the Fund for Development of Evidence Based Medicine in Private Specialized Practices. EL is principle investigator for a study with HPV-test-kits provided by Roche. The other authors have nothing to declare. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- Malene Skorstengaard
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
- Correspondence address. Department of Public Health, University of Copenhagen, Øster Farimagsgade 5, DK 1014 København K, Denmark. Tel: + 45-27-20-23-83; E-mail: https://orcid.org/0000-0002-6395-9783
| | - Elsebeth Lynge
- Centre for Epidemiological Research, Nykøbing Falster Hospital, University of Copenhagen, Copenhagen, Denmark
| | - George Napolitano
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Jan Blaakær
- Department of Obstetrics and Gynecology, Odense University Hospital, Odense, Denmark
- Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Pinar Bor
- Department of Obstetrics and Gynecology, Randers Regional Hospital, Randers, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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11
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Badre-Esfahani S, Petersen LK, Tatari CR, Blaakær J, Andersen B, Seibæk L. Perceptions of cervical cancer prevention among a group of ethnic minority women in Denmark-A qualitative study. PLoS One 2021; 16:e0250816. [PMID: 34061863 PMCID: PMC8168878 DOI: 10.1371/journal.pone.0250816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 04/14/2021] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Cervical cancer screening (CCS) and human papillomavirus vaccination (HPVV) are effective measures against cervical cancer (CC). Attendance in HPVV and CCS provides the greatest protection, while combined non-attendance in HPVV and CCS provides little to no protection. It is hence concerning that some large ethnic minority groups show considerably lower HPVV and CCS attendance than other women-especially women from Middle-Eastern and North African (MENA) countries and Pakistan. Little is, however, known about the reasons for this low combined attendance pattern n. AIM To explore perceptions of and barriers to HPVV and CCS, among MENA and Pakistani women in Denmark. METHOD Focus group interviews were conducted. Data was transcribed verbatim, and analysed using systematic text condensation. FINDINGS Seventeen long-term resident women originating from six major MENA countries and Pakistan were included. Mean age was 36 years. We found that these women, across different age groups and descent, had sparse knowledge and understanding about CC, and their perceived relevance of disease prevention was low. Compared to HPVV, their barriers to CCS were more fixed and often linked to socio-cultural factors such as taboos related to female genitals and sexuality. Moreover, they presented unmet expectations and signs of mistrust in the healthcare system. However, at the end of the interviews, participants became more attentive toward CC prevention, particularly toward HPVV. CONCLUSION Elements of insufficient knowledge and understanding of CC and its prevention were found among a group of MENA and Pakistani women. Their socio-cultural background further represents a barrier particularly towards CCS. Additionally, negative experiences and unmet expectations lessen their trust in the healthcare system. All of which underlines the need for new tailored CC preventive strategies for this group. Based on our findings we suggest that future studies develop and evaluate interventions aiming to improve HPVV and CCS, including user-involvement.
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Affiliation(s)
- Sara Badre-Esfahani
- Department of Gynaecology and Obstetrics, Aarhus University Hospital, Aarhus N, Denmark
- Department of Public Health Programmes, Randers Regional Hospital, Randers NO, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Lone Kjeld Petersen
- Department of Gynaecology and Obstetrics, Odense University Hospital, Odense C, Denmark
- Open Patient data Explorative Network, University of Southern Denmark, Odense, Denmark
- Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Camilla Rahr Tatari
- Department of Public Health Programmes, Randers Regional Hospital, Randers NO, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Jan Blaakær
- Department of Gynaecology and Obstetrics, Odense University Hospital, Odense C, Denmark
- Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Berit Andersen
- Department of Public Health Programmes, Randers Regional Hospital, Randers NO, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Lene Seibæk
- Department of Gynaecology and Obstetrics, Aarhus University Hospital, Aarhus N, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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12
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Distribution of genetic alterations in high-risk early-stage cervical cancer patients treated with postoperative radiation therapy. Sci Rep 2021; 11:10567. [PMID: 34012039 PMCID: PMC8134569 DOI: 10.1038/s41598-021-90139-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Accepted: 05/05/2021] [Indexed: 12/12/2022] Open
Abstract
Somatic genetic alteration analysis was performed for post-hysterectomy high-risk early-stage uterine cervical cancer patients who underwent post-operative radiation therapy. Post-operative radiation therapy was performed for patients with pathological features of pelvic lymph node metastasis, parametrium invasion, or positive vaginal margin, which corresponded to the post-operative high-risk category. DNA was extracted from paraffin-embedded surgical specimens, and 50 somatic hotspot genetic alternations were detected using Ion AmpliSeq Cancer Hotspot Panel. The existence of actionable mutation was assessed based on OncoKB evidence level > 3A. Between January 2008 and November 2019, 89 patients who underwent abdominal radical hysterectomy followed by post-operative radiation therapy were identified. The follow-up period for living patients was 82.3 months (range 9.3-153.9), and the 5-year relapse-free survival and overall survival rates were 72.6% and 85.9%, respectively. The most frequently detected somatic mutation was PIK3CA (26 [29.2%] patients); however, no prognostic somatic genetic alterations were identified. Actionable mutations were detected in 30 (33.7%) patients. Actionable mutations were detected in approximately one-third of patients, suggesting that precision medicine can be offered to patients with post-operative high-risk uterine cervical cancer in the near future.
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13
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Systematic literature review of cross-protective effect of HPV vaccines based on data from randomized clinical trials and real-world evidence. Vaccine 2021; 39:2224-2236. [PMID: 33744051 DOI: 10.1016/j.vaccine.2020.11.076] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 11/07/2020] [Accepted: 11/30/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND The extent of cross-protection provided by currently licensed bivalent and quadrivalent HPV vaccines versus direct protection against HPV 31-, 33-, 45-, 52-, and 58-related disease is debated. A systematic literature review was conducted to establish the duration and magnitude of cross-protection in interventional and observational studies. METHODS PubMed and Embase databases were searched to identify randomized controlled trials (RCT) and observational studies published between 2008 and 2019 reporting on efficacy and effectiveness of HPV vaccines in women against non-vaccine types 31, 33, 45, 52, 58, and 6 and 11 (non-bivalent types). Key outcomes of interest were vaccine efficacy against 6- and 12-month persistent infection or genital lesions, and type-specific genital HPV prevalence or incidence. RCT data were analyzed for the according-to-protocol (bivalent vaccine) or negative-for-14-HPV-types (quadrivalent vaccine) efficacy cohorts. RESULTS Data from 23 RCTs and 33 observational studies evaluating cross-protection were extracted. RCTs assessed cross-protection in post-hoc analyses of small size subgroups. Among fully vaccinated, baseline HPV-naïve women, the bivalent vaccine showed statistically significant cross-protective efficacy, although with wide confidence intervals, against 6-month and 12-month persistent cervical infections and CIN2+ only consistently for HPV 31 and 45, with the highest effect observed for HPV 31 (range 64.6% [95% CI: 27.6 to 83.9] to 79.1% [97.7% CI: 27.6 to 95.9] for 6-month persistent infection; maximal follow-up 4.7 years). No cross-protection was shown in extended follow-up. The quadrivalent vaccine efficacy reached statistical significance for HPV 31 (46.2% [15.3-66.4]; follow-up: 3.6 years). Similarly, observational studies found consistently significant effectiveness only against HPV 31 and 45 with both vaccines. CONCLUSIONS RCTs and observational studies show that cross-protection is inconsistent across non-vaccine HPV types and is largely driven by HPV 31 and 45. Furthermore, existing data suggest that it wanes over time; its long-term durability has not been established.
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González JV, Deluca GD, Correa RM, Liotta DJ, Basiletti JA, Fellner MD, Colucci MC, Alzogaray OG, Katz N, Carmona JJ, Tappari NF, Berner E, Cramer V, Real P, López Kaufman CV, Kosoy GJ, Katabian L, Severino MS, Aboslaiman RE, Chami C, Totaro ME, Rogoski C, Giurgiovich AJ, Martínez GL, Plana LM, Vizzotti C, Picconi MA. Strong reduction in prevalence of HPV16/18 and closely related HPV types in sexually active adolescent women following the introduction of HPV vaccination in Argentina. ACTA ACUST UNITED AC 2020; 10:100208. [PMID: 33161174 PMCID: PMC7683272 DOI: 10.1016/j.pvr.2020.100208] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 10/07/2020] [Accepted: 10/28/2020] [Indexed: 02/06/2023]
Abstract
HPV16/18 decreased by >93% in vaccinated sexually active Argentine girls. Detected reduction of HPV31 and 45 would add to the success of immunization. No genotype replacement was observed. First HPV vaccination monitoring data reported from a Latin American country.
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Affiliation(s)
- Joaquín Víctor González
- Servicio Virus Oncogénicos, Laboratorio Nacional y Regional de Referencia para HPV, Instituto Nacional de Enfermedades Infecciosas -ANLIS "Dr. Malbrán", Av. Velez Sársfield 563, C1282AFF, Buenos Aires, Argentina.
| | - Gerardo Daniel Deluca
- Facultad de Medicina, Universidad Nacional Del Nordeste, Mariano Moreno 1240, W3400ACX, Corrientes, Argentina.
| | - Rita Mariel Correa
- Servicio Virus Oncogénicos, Laboratorio Nacional y Regional de Referencia para HPV, Instituto Nacional de Enfermedades Infecciosas -ANLIS "Dr. Malbrán", Av. Velez Sársfield 563, C1282AFF, Buenos Aires, Argentina.
| | - Domingo Javier Liotta
- Laboratorio de Biología Molecular Aplicada, Facultad de Ciencias Exactas, Quimicas y Naturales, Universidad Nacional de Misiones, Av. Mariano Moreno 1375, N3300, Posadas, Misiones, Argentina; Instituto Nacional de Medicina Tropical- ANLIS "Dr. Malbrán", Neuquén y Jujuy S/n, N3370, Puerto Iguazú, Misiones, Argentina.
| | - Jorge Alejandro Basiletti
- Servicio Virus Oncogénicos, Laboratorio Nacional y Regional de Referencia para HPV, Instituto Nacional de Enfermedades Infecciosas -ANLIS "Dr. Malbrán", Av. Velez Sársfield 563, C1282AFF, Buenos Aires, Argentina.
| | - María Dolores Fellner
- Servicio Virus Oncogénicos, Laboratorio Nacional y Regional de Referencia para HPV, Instituto Nacional de Enfermedades Infecciosas -ANLIS "Dr. Malbrán", Av. Velez Sársfield 563, C1282AFF, Buenos Aires, Argentina.
| | - María Celeste Colucci
- Servicio Virus Oncogénicos, Laboratorio Nacional y Regional de Referencia para HPV, Instituto Nacional de Enfermedades Infecciosas -ANLIS "Dr. Malbrán", Av. Velez Sársfield 563, C1282AFF, Buenos Aires, Argentina.
| | - Olga Gabriela Alzogaray
- Centro Integral de Salud La Banda, Av. San Martín 449, G4300, La Banda, Santiago Del Estero, Argentina.
| | - Nathalia Katz
- Dirección de Control de Enfermedades Inmunoprevenibles, Ministerio de Salud de La Nación, Rivadavia 875, C1002AAG, Buenos Aires, Argentina.
| | - Juan José Carmona
- Servicio Ginecología, Hospital Escuela de Agudos "Ramón Madariaga", Av. Marconi 3736, N3300, Posadas, Misiones, Argentina.
| | - Néstor Fabián Tappari
- Servicio Ginecología, Hospital Escuela de Agudos "Ramón Madariaga", Av. Marconi 3736, N3300, Posadas, Misiones, Argentina.
| | - Enrique Berner
- Servicio de Adolescencia, Hospital General de Agudos "Dr. Cosme Argerich", Gral. Urquiza 609, C1221 ADC, Buenos Aires, Argentina.
| | - Viviana Cramer
- Servicio de Adolescencia, Hospital General de Agudos "Dr. Cosme Argerich", Gral. Urquiza 609, C1221 ADC, Buenos Aires, Argentina.
| | - Paula Real
- Servicio de Adolescencia, Hospital General de Agudos "Dr. Cosme Argerich", Gral. Urquiza 609, C1221 ADC, Buenos Aires, Argentina.
| | - Carlota Viviana López Kaufman
- Sección Adolescencia, Hospital General de Agudos "Bernardino Rivadavia", Av. Gral. Las Heras 2670, C1425ASQ, Buenos Aires, Argentina.
| | - Gabriela Judit Kosoy
- Sección Adolescencia, Hospital General de Agudos "Bernardino Rivadavia", Av. Gral. Las Heras 2670, C1425ASQ, Buenos Aires, Argentina.
| | - Lucía Katabian
- Sección Adolescencia, Hospital General de Agudos "Bernardino Rivadavia", Av. Gral. Las Heras 2670, C1425ASQ, Buenos Aires, Argentina.
| | - María Silvia Severino
- Servicio Adolescencia, Hospital General de Agudos "Carlos Durand", Av. Díaz Vélez 5044, C1405DCS, Buenos Aires, Argentina.
| | | | - Cecilia Chami
- Sub Programa Salud Integral Del Adolescente, Ministerio de Salud de Santiago Del Estero, Av. Belgrano Sur 2050, Santiago Del Estero, G4200, Argentina.
| | - María Elina Totaro
- Laboratorio de Biología Molecular Aplicada, Facultad de Ciencias Exactas, Quimicas y Naturales, Universidad Nacional de Misiones, Av. Mariano Moreno 1375, N3300, Posadas, Misiones, Argentina.
| | - Carolina Rogoski
- Servicio Ginecología, Hospital Escuela de Agudos "Ramón Madariaga", Av. Marconi 3736, N3300, Posadas, Misiones, Argentina.
| | - Alejandra Julia Giurgiovich
- Consultorio de Adolescencia, Hospital Zonal General de Agudos "Evita Pueblo", Calle 136 3008, B1884, Berazategui, Provincia de Buenos Aires, Argentina.
| | - Gloria Lilian Martínez
- Consultorio de Adolescencia, Hospital Zonal General de Agudos "Evita Pueblo", Calle 136 3008, B1884, Berazategui, Provincia de Buenos Aires, Argentina.
| | - Liliana Marisol Plana
- Consultorio de Adolescencia, Hospital Zonal General de Agudos "Evita Pueblo", Calle 136 3008, B1884, Berazategui, Provincia de Buenos Aires, Argentina.
| | - Carla Vizzotti
- Secretaría de Acceso a La Salud, Ministerio de Salud de La Nación, Av. 9 de Julio 1925, C1073ABA, Buenos Aires, Argentina.
| | - María Alejandra Picconi
- Servicio Virus Oncogénicos, Laboratorio Nacional y Regional de Referencia para HPV, Instituto Nacional de Enfermedades Infecciosas -ANLIS "Dr. Malbrán", Av. Velez Sársfield 563, C1282AFF, Buenos Aires, Argentina.
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15
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Partanen VM, Heinävaara S, Waldstrøm M, Elfström KM, Tropé A, Ágústsson ÁI, Thorsteinsdottir S, Skare GB, Lönnberg S. Adherence to international recommendations in the governance and organisation of Nordic cervical cancer screening programmes. Acta Oncol 2020; 59:1308-1315. [PMID: 32955963 DOI: 10.1080/0284186x.2020.1821089] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
INTRODUCTION Screening has been the primary reason for the decline in the incidence and mortality of cervical cancer in the Nordic countries since the beginning of screening in the 1960s. Recently, the incidence of cervical cancer has increased in the Nordic countries indicating the need to look closely at possibilities for further improvement in screening. This article provides an overview of cervical cancer screening programmes in the Nordic countries and whether the programmes adhere to international recommendations. MATERIALS AND METHODS Relevant and unambiguous screening recommendations were extracted from applicable literature and classified into legal framework, governance, organisation, and monitoring and evaluation. The up-to-date status of screening programmes and adherence to selected recommendations was gathered from official documentation and co-authors representing cervical cancer screening programmes in all the Nordic countries. RESULTS A total of 168 recommendations were extracted and 54 of them were considered to be unambiguous and relevant. Forty-nine recommendations were included after synthesising similar recommendations. All Nordic countries adhere to recommendations related to legal framework, but adherence was lower with recommendations related to governance and organisation of screening. Monitoring and evaluation are also areas where adherence to recommendations could be improved. CONCLUSIONS The Nordic cervical cancer screening programmes have substantially decreased cancer burden despite not fully adhering to many of the recommendations. The presented gaps in adherence suggest that there is room for improvement in the screening programmes. Establishing clearer governance structures would still increase the ability to manage changes such as implementing HPV testing as the primary screening method or modifying the programme when HPV vaccinated cohorts of women enter the target age for screening.
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Affiliation(s)
| | | | - Marianne Waldstrøm
- Department of Pathology, Vejle Hospital, Lillebaelt Hospital, Region of Southern Denmark, Vejle, Denmark
| | - Klara Miriam Elfström
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
- Regional Cancer Center Stockholm-Gotland, Stockholm, Sweden
| | - Ameli Tropé
- Section for Cervical Cancer Screening, Cancer Registry of Norway, Oslo, Norway
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16
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Nygård M, Hansen BT, Kjaer SK, Hortlund M, Tryggvadóttir L, Munk C, Lagheden C, Sigurdardottir LG, Campbell S, Liaw KL, Dillner J. Human papillomavirus genotype-specific risks for cervical intraepithelial lesions. Hum Vaccin Immunother 2020; 17:972-981. [PMID: 32990181 PMCID: PMC8018444 DOI: 10.1080/21645515.2020.1814097] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Prevalence of different HPV genotypes is changing after HPV vaccination. The associated risks are needed for optimizing cervical cancer screening.To estimate HPV type-specific prevalence, odds ratio (OR), and positive predictive value (PPV) for cervical cytological abnormalities, we determined 41 different HPV genotypes in cervical samples from a population-based sample of 8351 women aged 18-51 years before HPV vaccination era (V501-033; NCT01077856).Prevalence of HPV16 was 4.9% (95% CI: 4.4-5.5) with the PPV for high-grade cytology 11.2%, and OR 11.9 (95% CI: 8.5-16.5). Carcinogenic HPVs included in the nonavalent vaccine (HPV16,18,31,33,45,52,58) had a population prevalence of 14.4% (95% CI: 13.5-15.4), with PPV of 8.0% (95% CI: 6.8-9.3) and OR 23.7 (95% CI: 16.0-63.5) for high-grade cytology. HPV types currently included in most screening tests, but not vaccinated against (HPV35,39,51,56,59,66,68) had a joint prevalence of 8.5% (95% CI: 7.8-9.2) with PPV of 4.4% (95% CI: 3.3-5.7) and OR of 2.9 (95% CI: 2.0-4.0) for high-grade cytology. The other 27 non-carcinogenic genotypes had a prevalence of 11.8%, PPV of 2.9% (95% CI:2.1-3.9), and OR 1.5 (95% CI: 1.1-2.2.) for high-grade cytology.These results suggest that HPV screening tests in the post-vaccination era might perform better if restricted to the HPV types in the nonavalent vaccine and screening for all 14 HPV types might result in suboptimal balance of harms and benefits.
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Affiliation(s)
- Mari Nygård
- Department of Research, Cancer Registry of Norway, Oslo, Norway
| | - Bo T Hansen
- Department of Research, Cancer Registry of Norway, Oslo, Norway
| | - Susanne K Kjaer
- Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark.,Gynecologic Clinic, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Maria Hortlund
- Formerly at WHO HPV LabNet Global Reference Laboratory, Clinical Microbiology, Skåne University Hospital, Malmö, Sweden.,International HPV Reference Center, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Laufey Tryggvadóttir
- Icelandic Cancer Registry, Icelandic Cancer Society, Reykjavik, Iceland.,Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - Christian Munk
- Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Camilla Lagheden
- Formerly at WHO HPV LabNet Global Reference Laboratory, Clinical Microbiology, Skåne University Hospital, Malmö, Sweden.,International HPV Reference Center, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | | | | | - Kai-Li Liaw
- Merck Research Laboratories, Merck Sharp & Dohme, Kenilworth, NJ, USA
| | - Joakim Dillner
- Formerly at WHO HPV LabNet Global Reference Laboratory, Clinical Microbiology, Skåne University Hospital, Malmö, Sweden.,International HPV Reference Center, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
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17
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Bogani G, Chiappa V, Pinelli C, Lopez S, Signorelli M, Taverna F, Lombardo C, Ditto A, Raspagliesi F. Trends in prevalence in human papillomavirus types and their association with cervical dysplasia: an analysis on 15 138 women over 20 years. Eur J Cancer Prev 2020; 29:452-457. [PMID: 32740171 DOI: 10.1097/cej.0000000000000565] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
To investigate trends in prevalence of various human papillomavirus types in order to assess the unmet clinical needs for women affected by human papillomavirus-related disease. Data of consecutive 15 138 patients undergoing human papillomavirus DNA testing from 1998 to 2018 were retrospectively identified. Human papillomavirus types were classified at high-risk according to the classification of the International Agency for Research on Cancer. The International Agency for Research on Cancer included seven human papillomavirus types covered by nine-valent vaccine and five not yet covered by any available vaccines. Overall, 4159 (65.3%), 1500 (23.5%) and 714 (11.2%) women had human papillomavirus types covered by nine-valent vaccination, not covered by nine-valent vaccination and co-infections of human papillomavirus types of both groups. At least one high-risk human papillomavirus type(s) was detected in 1241 patients with genital dysplasia: 832 (67.1%), 291 (23.4%) and 118 (9.5%) women had human papillomavirus types covered by nine-valent vaccination, not covered by nine-valent vaccination and co-infections of human papillomavirus types of both groups. Over the twenty-year study period, the number of human papillomavirus types not covered by nine-valent vaccine increased dramatically (from 4 to 16%; P < 0.001, P for trend). Similarly, looking at patients with genital dysplasia, high-risk human papillomavirus types not covered by nine-valent vaccine increased from 3 to 13% (P < 0.001, P for trend). Our data highlight that human papillomavirus types covered by nine-valent vaccine represent are the main types associated with genital dysplasia. However, over the study period, we observed an increasing prevalence of confections and high-risk human papillomavirus types not covered by the nine-valent vaccine, thus suggesting the need of developing more complete vaccines against human papillomavirus.
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Affiliation(s)
- Giorgio Bogani
- Gynecologic Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Milan, Italy
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18
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Authors' reply. Vaccine 2020; 38:5741. [PMID: 32732067 DOI: 10.1016/j.vaccine.2020.01.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 12/31/2019] [Accepted: 01/17/2020] [Indexed: 11/21/2022]
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19
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Sasieni P, Castanon A. Evidence of HPV vaccination efficacy comes from more than clinical trials. Vaccine 2020; 38:5569-5571. [PMID: 32654905 DOI: 10.1016/j.vaccine.2020.06.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 06/25/2020] [Accepted: 06/29/2020] [Indexed: 11/28/2022]
Affiliation(s)
- Peter Sasieni
- King's College London, Faculty of Life Sciences & Medicine, School of Cancer & Pharmaceutical Sciences, Cancer Prevention Group, Innovation Hub, Guys Cancer Centre, Guys Hospital, Great Maze Pond, London SE1 9RT, United Kingdom
| | - Alejandra Castanon
- King's College London, Faculty of Life Sciences & Medicine, School of Cancer & Pharmaceutical Sciences, Cancer Prevention Group, Innovation Hub, Guys Cancer Centre, Guys Hospital, Great Maze Pond, London SE1 9RT, United Kingdom.
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20
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Kann H, Hortlund M, Eklund C, Dillner J, Faust H. Human papillomavirus types in cervical dysplasia among young HPV-vaccinated women: Population-based nested case-control study. Int J Cancer 2020; 146:2539-2546. [PMID: 31868230 DOI: 10.1002/ijc.32848] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 11/18/2019] [Accepted: 12/10/2019] [Indexed: 11/11/2022]
Abstract
Human papillomavirus (HPV) vaccines protect against infections with the most oncogenic HPV types, cervical intraepithelial neoplasia (CIN) and cervical cancer. We investigated whether development of cervical intraepithelial neoplasia (CIN) lesions in HPV-vaccinated women is associated with vaccine-targeted HPV types or not. Linkage of the Swedish vaccination and cervical screening registries identified all females born 1980-2000 who had been HPV vaccinated before December 31, 2014 (n = 305,320) and had attended cervical screening in 2006-2018 (n = 79,491). We further selected women HPV vaccinated below 17 years of age and screened in the capital region (n = 5,874). Among those, 125 developed CIN and had a cervical cryopreserved sample available (42.5% of all eligible CIN cases). After 1:2 matching to disease-free HPV vaccinated controls (n = 242), samples were analyzed for HPV DNA and associations between HPV type and CIN diagnosis were estimated with conditional logistic regression. Vaccine-targeted HPV types were rare among both CIN cases (2.4% HPV16, 0.8% HPV18) and their matched controls (0.4% HPV16 and 18). No woman had HPV6 or 11. The CIN lesions were associated with the nonvaccine HPV types 31, 33, 42, 45, 51, 52, 56, 59 and 66. CIN lesions among young HPV vaccinated women are mostly attributable to infection with nonvaccine HPV types. The phenomenon may be important for surveillance and design of cervical cancer control strategies.
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Affiliation(s)
- Hanna Kann
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Maria Hortlund
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Carina Eklund
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Joakim Dillner
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Helena Faust
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
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21
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Skorstengaard M, Lynge E, Suhr J, Napolitano G. Conservative management of women with cervical intraepithelial neoplasia grade 2 in Denmark: a cohort study. BJOG 2020; 127:729-736. [PMID: 31880054 PMCID: PMC7383715 DOI: 10.1111/1471-0528.16081] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/18/2019] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Assess the progression, persistence, and regression of cervical intraepithelial neoplasia grade 2 (CIN2) after new guidelines on conservative treatment, compared with previous practice. DESIGN Nationwide register-based cohort study. SETTING Denmark. POPULATION Women aged 18-44 years diagnosed with CIN2 on biopsy: 6721 in 2008-2011 and 6399 in 2014-2017. METHODS Register data were retrieved from before (2008-2011) and after (2014-2017) the introduction of new guidelines. Histology diagnoses at second visit were used to assess progression (CIN3+), persistence (CIN2), or regression (CIN1/normal). MAIN OUTCOME MEASURES Proportion of CIN2 by type of management. Relative risk (RR) and corresponding 95% confidence intervals (95% CIs) for progression, persistence, and regression at second visit in 2014-2017, versus 2008-2011. RESULTS The proportion of CIN2 managed conservatively increased from 29.6% in 2008-2011 to 53.3% in 2014-2017 (RR 1.81, 95% CI 1.73-1.89). Time to second visit increased by 2 months. Regression increased from 23.5 to 30.2% (RR 1.29, 95% CI 1.22-1.36), whereas persistence and progression decreased, from 42.6 to 34.9% (RR 0.82, 95% CI 0.78-0.86) and from 28.0 to 22.8% (RR 0.81, 95% CI 0.77-0.86), respectively. In 2008-2011, women managed conservatively had a regression rate of 41.8%, persistence rate of 40.9%, and progression rate of 16.6%. In 2014-2017, these rates were 46.7, 35.5, and 17.1%, respectively. CONCLUSION After implementation of the new guidelines, conservative management became more frequent, and is now used for more than half of women with CIN2. Lesion regression became more frequent, now experienced by 47% of women managed conservatively. Similar regression rates were seen in women younger and older than 30 years, suggesting that conservative management is justifiable for women of childbearing age. TWEETABLE ABSTRACT In Denmark, more than half of women with CIN2 are managed conservatively, and half of these women experience lesion regression.
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Affiliation(s)
- M Skorstengaard
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - E Lynge
- Nykøbing Falster Hospital, University of Copenhagen, Copenhagen, Denmark
| | - J Suhr
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - G Napolitano
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
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Latsuzbaia A, Arbyn M, Tapp J, Fischer M, Weyers S, Pesch P, Mossong J. Effectiveness of bivalent and quadrivalent human papillomavirus vaccination in Luxembourg. Cancer Epidemiol 2019; 63:101593. [DOI: 10.1016/j.canep.2019.101593] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 08/23/2019] [Accepted: 08/28/2019] [Indexed: 01/17/2023]
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Enerly E, Flingtorp R, Christiansen IK, Campbell S, Hansen M, Myklebust TÅ, Weiderpass E, Nygård M. An observational study comparing HPV prevalence and type distribution between HPV-vaccinated and -unvaccinated girls after introduction of school-based HPV vaccination in Norway. PLoS One 2019; 14:e0223612. [PMID: 31600341 PMCID: PMC6786612 DOI: 10.1371/journal.pone.0223612] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 09/24/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Many countries have initiated school-based human papillomavirus (HPV) vaccination programs. The real-life effectiveness of HPV vaccines has become increasingly evident, especially among girls vaccinated before HPV exposure in countries with high vaccine uptake. In 2009, Norway initiated a school-based HPV vaccination program for 12-year-old girls using the quadrivalent HPV vaccine (Gardasil®), which targets HPV6, 11, 16, and 18. Here, we aim to assess type-specific vaginal and oral HPV prevalence in vaccinated compared with unvaccinated girls in the first birth cohort eligible for school-based vaccination (born in 1997). METHODS This observational, cross-sectional study measured the HPV prevalence ratio (PR) between vaccinated and unvaccinated girls in Norway. Facebook advertisement was used to recruit participants and disseminate information about the study. Participants self-sampled vaginal and oral specimens using an Evalyn® Brush and a FLOQSwab™, respectively. Sexual behavior was ascertained through a short questionnaire. RESULTS Among the 312 participants, 239 (76.6%) had received at least one dose of HPV vaccine prior to sexual debut. 39.1% of vaginal samples were positive for any HPV type, with similar prevalence among vaccinated and unvaccinated girls (38.5% vs 41.1%, PR: 0.93, 95% confidence interval [CI]: 0.62-1.41). For vaccine-targeted types there was some evidence of lower prevalence in the vaccinated (0.4%) compared to the unvaccinated (6.8%) group (PR: 0.06, 95%CI: 0.01-0.52). This difference remained after adjusting for sexual behavior (PR: 0.04, 95%CI: 0.00-0.42). Only four oral samples were positive for any HPV type, and all of these participants had received at least one dose of HPV vaccine at least 1 year before oral sexual debut. CONCLUSION There is evidence of a lower prevalence of vaccine-targeted HPV types in the vagina of vaccinated girls from the first birth cohort eligible for school-based HPV vaccination in Norway; this was not the case when considering all HPV types or types not included in the quadrivalent HPV vaccine.
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Affiliation(s)
- Espen Enerly
- Department of Research, Cancer Registry of Norway, Oslo, Norway
- * E-mail:
| | | | - Irene Kraus Christiansen
- Department of Microbiology and Infection Control, National HPV Reference Laboratory, Akershus University Hospital, Lørenskog, Norway
| | | | - Mona Hansen
- Department of Microbiology and Infection Control, National HPV Reference Laboratory, Akershus University Hospital, Lørenskog, Norway
| | - Tor Åge Myklebust
- Department of Registration, Cancer Registry of Norway, Oslo, Norway
- Department of Research and Innovation, Møre and Romsdal Hospital Trust, Ålesund, Norway
| | - Elisabete Weiderpass
- International Agency for Research on Cancer (IARC), World Health Organization, Lyon, France
| | - Mari Nygård
- Department of Research, Cancer Registry of Norway, Oslo, Norway
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Abi Jaoude J, Saad H, Farha L, Dagher H, Khair D, Kaafarani MA, Jamaluddine Z, Cherfan P. Barriers, Attitudes and Clinical Approach of Lebanese Physicians Towards HPV Vaccination; A Cross- Sectional Study. Asian Pac J Cancer Prev 2019; 20:3181-3187. [PMID: 31653171 PMCID: PMC6982667 DOI: 10.31557/apjcp.2019.20.10.3181] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVES HPV infection is associated with the development of cervical and oropharyngeal cancer. HPV vaccination prevents cervical cancer, but is still not part of Lebanon's routine vaccination schedule. As such, understanding physicians' practice towards HPV vaccination is essential. MATERIAL AND METHODS We conducted a cross-sectional study in Greater Beirut, Lebanon to assess the barriers, attitudes and clinical approach of Lebanese physicians towards HPV vaccination. We also aimed to analyze the factors associated with physicians' barriers to HPV vaccination. RESULTS In total, 228 physicians completed the survey. Our results show that physicians and parents consider the cost of HPV vaccination to be a main barrier (58.9% and 80.7% respectively). Also, parents tend to have concerns about vaccine safety (78.1%), efficacy (68.6%), and lack education concerning HPV infection (81.8%). Furthermore, female physicians tend to have fewer barriers when compared to male physicians (aOR = 0.39; p-value = 0.007). Additionally, physicians who completed residency programs in the USA also showed fewer barriers when compared to physicians who completed Lebanese residency programs (aOR = 0.24; p-value = 0.040). Finally, physicians with higher knowledge score have fewer barriers when compared to those with lower knowledge scores (aOR = 0.42; p-value = 0.018). CONCLUSIONS Physician gender, residency program and level of knowledge play a role in HPV vaccine barriers and recommendation in Lebanon. Future improvements in cost and awareness about HPV might improve vaccination rates. Creating uniform practices towards HPV vaccine is warranted to improve patient care.
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Affiliation(s)
| | - Halim Saad
- Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Loulwa Farha
- Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Hiba Dagher
- Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Diana Khair
- Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | | | - Zeina Jamaluddine
- Center for Research on Population and Health, Faculty of Health Sciences, American University of Beirut, Beirut, Lebanon
| | - Patrick Cherfan
- Faculty of Medicine, American University of Beirut, Beirut, Lebanon
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Letter to the editor. Vaccine 2019; 37:6133. [DOI: 10.1016/j.vaccine.2019.04.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 03/19/2019] [Accepted: 04/08/2019] [Indexed: 10/26/2022]
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Drolet M, Bénard É, Pérez N, Brisson M. Population-level impact and herd effects following the introduction of human papillomavirus vaccination programmes: updated systematic review and meta-analysis. Lancet 2019; 394:497-509. [PMID: 31255301 PMCID: PMC7316527 DOI: 10.1016/s0140-6736(19)30298-3] [Citation(s) in RCA: 553] [Impact Index Per Article: 110.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 01/25/2019] [Accepted: 01/28/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND More than 10 years have elapsed since human papillomavirus (HPV) vaccination was implemented. We did a systematic review and meta-analysis of the population-level impact of vaccinating girls and women against human papillomavirus on HPV infections, anogenital wart diagnoses, and cervical intraepithelial neoplasia grade 2+ (CIN2+) to summarise the most recent evidence about the effectiveness of HPV vaccines in real-world settings and to quantify the impact of multiple age-cohort vaccination. METHODS In this updated systematic review and meta-analysis, we used the same search strategy as in our previous paper. We searched MEDLINE and Embase for studies published between Feb 1, 2014, and Oct 11, 2018. Studies were eligible if they compared the frequency (prevalence or incidence) of at least one HPV-related endpoint (genital HPV infections, anogenital wart diagnoses, or histologically confirmed CIN2+) between pre-vaccination and post-vaccination periods among the general population and if they used the same population sources and recruitment methods before and after vaccination. Our primary assessment was the relative risk (RR) comparing the frequency (prevalence or incidence) of HPV-related endpoints between the pre-vaccination and post-vaccination periods. We stratified all analyses by sex, age, and years since introduction of HPV vaccination. We used random-effects models to estimate pooled relative risks. FINDINGS We identified 1702 potentially eligible articles for this systematic review and meta-analysis, and included 65 articles in 14 high-income countries: 23 for HPV infection, 29 for anogenital warts, and 13 for CIN2+. After 5-8 years of vaccination, the prevalence of HPV 16 and 18 decreased significantly by 83% (RR 0·17, 95% CI 0·11-0·25) among girls aged 13-19 years, and decreased significantly by 66% (RR 0·34, 95% CI 0·23-0·49) among women aged 20-24 years. The prevalence of HPV 31, 33, and 45 decreased significantly by 54% (RR 0·46, 95% CI 0·33-0·66) among girls aged 13-19 years. Anogenital wart diagnoses decreased significantly by 67% (RR 0·33, 95% CI 0·24-0·46) among girls aged 15-19 years, decreased significantly by 54% (RR 0·46, 95% CI 0.36-0.60) among women aged 20-24 years, and decreased significantly by 31% (RR 0·69, 95% CI 0·53-0·89) among women aged 25-29 years. Among boys aged 15-19 years anogenital wart diagnoses decreased significantly by 48% (RR 0·52, 95% CI 0·37-0·75) and among men aged 20-24 years they decreased significantly by 32% (RR 0·68, 95% CI 0·47-0·98). After 5-9 years of vaccination, CIN2+ decreased significantly by 51% (RR 0·49, 95% CI 0·42-0·58) among screened girls aged 15-19 years and decreased significantly by 31% (RR 0·69, 95% CI 0·57-0·84) among women aged 20-24 years. INTERPRETATION This updated systematic review and meta-analysis includes data from 60 million individuals and up to 8 years of post-vaccination follow-up. Our results show compelling evidence of the substantial impact of HPV vaccination programmes on HPV infections and CIN2+ among girls and women, and on anogenital warts diagnoses among girls, women, boys, and men. Additionally, programmes with multi-cohort vaccination and high vaccination coverage had a greater direct impact and herd effects. FUNDING WHO, Canadian Institutes of Health Research, Fonds de recherche du Québec - Santé.
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Affiliation(s)
- Mélanie Drolet
- Centre de recherche du CHU de Québec-Université Laval, Québec, QC, Canada
| | - Élodie Bénard
- Centre de recherche du CHU de Québec-Université Laval, Québec, QC, Canada; Département de médecine sociale et préventive, Faculté de médecine, Université Laval, Québec, QC, Canada
| | - Norma Pérez
- Centre de recherche du CHU de Québec-Université Laval, Québec, QC, Canada
| | - Marc Brisson
- Centre de recherche du CHU de Québec-Université Laval, Québec, QC, Canada; Département de médecine sociale et préventive, Faculté de médecine, Université Laval, Québec, QC, Canada; Department of Infectious Disease Epidemiology, Imperial College, London, UK.
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Chernyshov PV, Humenna I. Human papillomavirus: vaccination, related cancer awareness, and risk of transmission among female medical students. ACTA DERMATOVENEROLOGICA ALPINA PANNONICA ET ADRIATICA 2019. [DOI: 10.15570/actaapa.2019.19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Egli-Gany D, Spaar Zographos A, Diebold J, Masserey Spicher V, Frey Tirri B, Heusser R, Dillner J, Petignat P, Sahli R, Low N. Human papillomavirus genotype distribution and socio-behavioural characteristics in women with cervical pre-cancer and cancer at the start of a human papillomavirus vaccination programme: the CIN3+ plus study. BMC Cancer 2019; 19:111. [PMID: 30700274 PMCID: PMC6354352 DOI: 10.1186/s12885-018-5248-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 12/26/2018] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND The Swiss Federal Office of Public Health has recommended vaccination against human papillomavirus (HPV) to prevent cervical cancer since 2008. To establish monitoring of the future public health impact of vaccination, baseline population-based data are required. The objectives of this study were to examine the distribution of oncogenic HPV genotypes in biopsies with cervical intraepithelial neoplasia stage 3 or more severe lesions (CIN3+) at the beginning of HPV vaccination programmes and to compare sociodemographic and behavioural factors of women with CIN3+ with women in the Swiss general population. METHODS We conducted a retrospective and prospective cross-sectional study with women diagnosed with CIN3+ in Switzerland. Ten pathology institutes from six cantons and three language regions participated. We conducted HPV typing on formaldehyde fixed-paraffin embedded specimens from 2014 and 2015. Women enrolled in 2015 were asked to complete a questionnaire. We described frequencies of HPV types. We also compared demographic characteristics and socioeconomic status in the CIN3 + plus group with the Swiss National Cohort in 2014 and compared risk factors for HPV infection with the Swiss Health Survey in 2012. RESULTS We included 768 biopsies from 767 women. Four hundred and seventy-five (61.8%) biopsies were positive for HPV 16 and/or 18, 687 (89.5%) were positive for oncogenic HPV genotypes 16, 18, 31, 33, 45, 52, and/or 58 and five (0.7%) were HPV negative. Twenty-eight (10.3%) of the 273 women who completed the patient questionnaire reported having received at least one dose of an HPV vaccine. When compared with Swiss women in the six study cantons, fewer women in the CIN3+ plus study group were of Swiss nationality, more were born abroad and more were single. The study group also had a higher proportion of women with ≥2 partners in the last year, current smokers and was younger at age of first sexual intercourse. CONCLUSIONS Introduction of the nonavalent vaccine could cover approximately 90% of CIN3+ lesions in Swiss women compared with around 60% with the quadrivalent vaccine. Surveillance of HPV genotype distribution in CIN3+, together with information about vaccination and CIN3+ incidence will allow monitoring of the public health impact of vaccination programmes. TRIAL REGISTRATION ClinicalTrials.gov, NCT02323997 . Registered 24 December 2014.
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Affiliation(s)
- Dianne Egli-Gany
- Institute of Social and Preventive Medicine, University of Bern, Mittelstrasse 43, 3012 Bern, Switzerland
| | - Anne Spaar Zographos
- Federal Office of Public Health, Schwarzenburgstrasse 157, 3003 Bern, Switzerland
| | - Joachim Diebold
- Institute of Pathology, Cantonal Hospital Lucerne, Spitalstrasse, 6000 Luzern 16, Switzerland
| | | | - Brigitte Frey Tirri
- Department of Gynaecology and Obstetrics, Kantonsspital Baselland, Rheinstrasse 26, 4410 Liestal, Switzerland
| | - Rolf Heusser
- National Institute for Cancer Epidemiology and Registration, Hirschengraben 82, 8001 Zurich, Switzerland
| | - Joakim Dillner
- WHO HPV LabNet Global Reference Laboratory, Department of Clinical Microbiology, Center for Cervical Cancer Prevention, Skåne University Hospital, Malmö, Karolinska Institute and Hospital, SE-171, 77 Stockholm, Sweden
| | - Patrick Petignat
- Department of Gynaecology and Obstetrics, Geneva University Hospitals, Boulevard de la Cluse 30, 1205 Genève, Switzerland
| | - Roland Sahli
- Institute of Microbiology, Lausanne University Hospital and University of Lausanne, Rue du Bugnon 48, 1011 Lausanne, Switzerland
| | - Nicola Low
- Institute of Social and Preventive Medicine, University of Bern, Mittelstrasse 43, 3012 Bern, Switzerland
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