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      Cervical cancer prevention in countries with the highest HIV prevalence: a review of policies

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          Abstract

          Introduction

          Cervical cancer (CC) is the leading cause of cancer-related death among women in sub-Saharan Africa. It occurs most frequently in women living with HIV (WLHIV) and is classified as an AIDS-defining illness. Recent World Health Organisation (WHO) recommendations provide guidance for CC prevention policies, with specifications for WLHIV. We systematically reviewed policies for CC prevention and control in sub-Saharan countries with the highest HIV prevalence.

          Methods

          We included countries with an HIV prevalence ≥ 10% in 2018 and policies published between January 1 st 2010 and March 31 st 2022. We searched Medline via PubMed, the international cancer control partnership website and national governmental websites of included countries for relevant policy documents. The online document search was supplemented with expert consultation for each included country. We synthesised aspects defined in policies for HPV vaccination, sex education, condom use, tobacco control, male circumcision,cervical screening, diagnosis and treatment of cervical pre-cancerous lesions and cancer, monitoring mechanisms and cost of services to women while highlighting specificities for WLHIV.

          Results

          We reviewed 33 policy documents from nine countries. All included countries had policies on CC prevention and control either as a standalone policy (77.8%), or as part of a cancer or non-communicable diseases policy (22.2%) or both (66.7%). Aspects of HPV vaccination were reported in 7 (77.8%) of the 9 countries. All countries (100%) planned to develop or review Information, Education and Communication (IEC) materials for CC prevention including condom use and tobacco control. Age at screening commencement and screening intervals for WLHIV varied across countries. The most common recommended screening and treatment methods were visual inspection with acetic acid (VIA) (88.9%), Pap smear (77.8%); cryotherapy (100%) and loop electrosurgical procedure (LEEP) (88.9%) respectively. Global indicators disaggregated by HIV status for monitoring CC programs were rarely reported. CC prevention and care policies included service costs at various stages in three countries (33.3%).

          Conclusion

          Considerable progress has been made in policy development for CC prevention and control in sub Saharan Africa. However, in countries with a high HIV burden, there is need to tailor these policies to respond to the specific needs of WLHIV. Countries may consider updating policies using the recent WHO guidelines for CC prevention, while adapting them to context realities.

          Supplementary Information

          The online version contains supplementary material available at 10.1186/s12889-022-13827-0.

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          Most cited references38

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          Global cancer statistics 2020: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries

          This article provides an update on the global cancer burden using the GLOBOCAN 2020 estimates of cancer incidence and mortality produced by the International Agency for Research on Cancer. Worldwide, an estimated 19.3 million new cancer cases (18.1 million excluding nonmelanoma skin cancer) and almost 10.0 million cancer deaths (9.9 million excluding nonmelanoma skin cancer) occurred in 2020. Female breast cancer has surpassed lung cancer as the most commonly diagnosed cancer, with an estimated 2.3 million new cases (11.7%), followed by lung (11.4%), colorectal (10.0 %), prostate (7.3%), and stomach (5.6%) cancers. Lung cancer remained the leading cause of cancer death, with an estimated 1.8 million deaths (18%), followed by colorectal (9.4%), liver (8.3%), stomach (7.7%), and female breast (6.9%) cancers. Overall incidence was from 2-fold to 3-fold higher in transitioned versus transitioning countries for both sexes, whereas mortality varied <2-fold for men and little for women. Death rates for female breast and cervical cancers, however, were considerably higher in transitioning versus transitioned countries (15.0 vs 12.8 per 100,000 and 12.4 vs 5.2 per 100,000, respectively). The global cancer burden is expected to be 28.4 million cases in 2040, a 47% rise from 2020, with a larger increase in transitioning (64% to 95%) versus transitioned (32% to 56%) countries due to demographic changes, although this may be further exacerbated by increasing risk factors associated with globalization and a growing economy. Efforts to build a sustainable infrastructure for the dissemination of cancer prevention measures and provision of cancer care in transitioning countries is critical for global cancer control.
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            Estimates of the global burden of cervical cancer associated with HIV

            Summary Background HIV enhances human papillomavirus (HPV)-induced carcinogenesis. However, the contribution of HIV to cervical cancer burden at a population level has not been quantified. We aimed to investigate cervical cancer risk among women living with HIV and to estimate the global cervical cancer burden associated with HIV. Methods We did a systematic literature search and meta-analysis of five databases (PubMed, Embase, Global Health [CABI.org], Web of Science, and Global Index Medicus) to identify studies analysing the association between HIV infection and cervical cancer. We estimated the pooled risk of cervical cancer among women living with HIV across four continents (Africa, Asia, Europe, and North America). The risk ratio (RR) was combined with country-specific UNAIDS estimates of HIV prevalence and GLOBOCAN 2018 estimates of cervical cancer to calculate the proportion of women living with HIV among women with cervical cancer and population attributable fractions and age-standardised incidence rates (ASIRs) of HIV-attributable cervical cancer. Findings 24 studies met our inclusion criteria, which included 236 127 women living with HIV. The pooled risk of cervical cancer was increased in women living with HIV (RR 6·07, 95% CI 4·40–8·37). Globally, 5·8% (95% CI 4·6–7·3) of new cervical cancer cases in 2018 (33 000 new cases, 95% CI 26 000–42 000) were diagnosed in women living with HIV and 4·9% (95% CI 3·6–6·4) were attributable to HIV infection (28 000 new cases, 20 000–36 000). The most affected regions were southern Africa and eastern Africa. In southern Africa, 63·8% (95% CI 58·9–68·1) of women with cervical cancer (9200 new cases, 95% CI 8500–9800) were living with HIV, as were 27·4% (23·7–31·7) of women in eastern Africa (14 000 new cases, 12 000–17 000). ASIRs of HIV-attributable cervical cancer were more than 20 per 100 000 in six countries, all in southern Africa and eastern Africa. Interpretation Women living with HIV have a significantly increased risk of cervical cancer. HPV vaccination and cervical cancer screening for women living with HIV are especially important for countries in southern Africa and eastern Africa, where a substantial HIV-attributable cervical cancer burden has added to the existing cervical cancer burden. Funding WHO, US Agency for International Development, and US President's Emergency Plan for AIDS Relief.
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              Incidence and progression of cervical lesions in women with HIV: a systematic global review.

              Global data on cervical lesion incidence and progression in HIV-positive women are essential for understanding the natural history of cervical neoplasia and informing screening policy. A systematic review was performed summarizing the incidence and progression of cervical lesions in HIV-positive women. Of 5882 HIV-positive women from 15 studies, incidence ranged from 4.9 to 21.1 cases per 100 woman-years for any cervical lesion and 0.4 to 8.8 cases per 100 woman-years for high-grade cervical lesions. HIV-positive women showed a median three-fold higher incidence of cervical lesions compared to HIV-negative women. Of 1099 HIV-positive women from 11 studies, progression from low- to high-grade lesions ranged from 1.2 to 26.2 cases per 100 woman-years. Both incidence and progression rates increased with lower CD4 counts. The effect of antiretroviral therapy on the natural history of cervical neoplasia remains unclear. HIV-positive women have higher incidence and progression of cervical neoplasia. Cervical cancer screening should be integrated into HIV treatment programmes.
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                Author and article information

                Contributors
                serra.asangbeh@swisstph.ch
                Journal
                BMC Public Health
                BMC Public Health
                BMC Public Health
                BioMed Central (London )
                1471-2458
                10 August 2022
                10 August 2022
                2022
                : 22
                : 1530
                Affiliations
                [1 ]GRID grid.416786.a, ISNI 0000 0004 0587 0574, Swiss Tropical and Public Health Institute, ; Allschwil, Switzerland
                [2 ]GRID grid.6612.3, ISNI 0000 0004 1937 0642, University of Basel, ; Basel, Switzerland
                [3 ]GRID grid.5734.5, ISNI 0000 0001 0726 5157, Graduate School for Cellular and Biomedical Sciences, , University of Bern, ; Bern, Switzerland
                [4 ]GRID grid.5734.5, ISNI 0000 0001 0726 5157, Graduate School for Health Sciences, , University of Bern, ; Bern, Switzerland
                [5 ]GRID grid.5734.5, ISNI 0000 0001 0726 5157, Institute of Social and Preventive Medicine (ISPM), , University of Bern, ; Bern, Switzerland
                [6 ]GRID grid.415722.7, ISNI 0000 0004 0598 3405, Malawi Ministry of Health, ; Lilongwe, Malawi
                [7 ]GRID grid.415807.f, Principal Health Officer, Ministry of Health, ; Gaborone, Botswana
                [8 ]International Training and Education Center for Health (I-TECH) Namibia, Windhoek, Namibia
                [9 ]Newlands Clinic, Harare, Zimbabwe
                [10 ]SolidarMed, Chiure, Mozambique
                [11 ]GRID grid.11951.3d, ISNI 0000 0004 1937 1135, Clinical HIV Research Unit, , Wits Health Consortium, Women’s Cancer Research Department, ; Johannesburg, South Africa
                [12 ]Department of Obstetrics and Gynecology, Women and Newborn Hospital, Lusaka, Zambia
                [13 ]GRID grid.462829.3, Botswana-Harvard AIDS Institute Partnership, ; Gaborone, Botswana
                [14 ]GRID grid.62560.37, ISNI 0000 0004 0378 8294, Division of Global Health Equity, , Brigham and Women’s Hospital, ; Boston, Massachusetts USA
                [15 ]Elizabeth Glaser Paediatric AIDS Foundation, Maseru, Lesotho
                [16 ]GRID grid.17703.32, ISNI 0000000405980095, Early Detection, Prevention and Infections Branch, International Agency for Research On Cancer, ; Lyon, France
                [17 ]GRID grid.463475.7, Ministry of Health, ; Mbabane, Eswatini
                Article
                13827
                10.1186/s12889-022-13827-0
                9367081
                35948944
                f7ff70ad-3191-41f9-97f4-51caba4ae497
                © The Author(s) 2022

                Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver ( http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

                History
                : 10 January 2022
                : 29 June 2022
                Funding
                Funded by: Swiss Government Excellence Scholarship (ESKAS No. 2019.0741) for the academic year(s) 2019-2021.
                Funded by: The European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 801076, through the SSPH+ Global PhD Fellowship Programme in Public Health Sciences (GlobalP3HS) of the Swiss School of Public Health.
                Funded by: The Swiss Programme for Research on Global Issues for Development (r4d programme)
                Categories
                Research
                Custom metadata
                © The Author(s) 2022

                Public health
                cervical cancer,wlhiv,national policies,prevention and control,sub saharan africa
                Public health
                cervical cancer, wlhiv, national policies, prevention and control, sub saharan africa

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