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Foster E, Malloy MJ, Jokubaitis VG, Wrede CDH, Butzkueven H, Sasadeusz J, Van Doornum S, Macrae F, Unglik G, Brotherton JML, van der Walt A. Increased risk of cervical dysplasia in females with autoimmune conditions-Results from an Australia database linkage study. PLoS One 2020; 15:e0234813. [PMID: 32555638 PMCID: PMC7302686 DOI: 10.1371/journal.pone.0234813] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 06/02/2020] [Indexed: 12/29/2022] Open
Abstract
Background Autoimmune conditions (AICs) and/or their treatment may alter risk of human papilloma virus (HPV) infection and females with AICs are therefore at an increased risk of cervical dysplasia. However, inclusion of these at-risk populations in cervical cancer screening and HPV-vaccination guidelines, are mostly lacking. This study aimed to determine the prevalence of cervical dysplasia in a wide range of AICs and compare that to HIV and immunocompetent controls to support the optimisation of cervical cancer preventive health measures. Methods Data linkage was used to match cervical screening episodes to emergency department records of females with AICs or HIV to immunocompetent controls over a 14-year period. The primary outcome was histologically confirmed high-grade cervical disease. Results, measured as rates by cytology and histology classification per 1,000 females screened, were analysed per disease group, and intergroup comparisons were performed. Results Females with inflammatory bowel disease (2,683), psoriatic and enteropathic arthropathies (1,848), multiple sclerosis (MS) (1,426), rheumatoid arthritis (1,246), systemic lupus erythematosus and/or mixed connective tissue disease (SLE/MCTD) (702), HIV (44), and 985,383 immunocompetent controls were included. SLE/MCTD and HIV groups had greater rates of high-grade histological and cytological abnormalities compared to controls. Increased rates of low-grade cytological abnormalities were detected in all females with AICs, with the exception of the MS group. Conclusions Females with SLE/MCTD or HIV have increased rates of high-grade cervical abnormalities. The increased low-grade dysplasia rate seen in most females with AICs is consistent with increased HPV infection. These findings support expansion of cervical cancer preventative programs to include these at-risk females.
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Butler TL, Anderson K, Condon JR, Garvey G, Brotherton JML, Cunningham J, Tong A, Moore SP, Maher CM, Mein JK, Warren EF, Whop LJ. Indigenous Australian women's experiences of participation in cervical screening. PLoS One 2020; 15:e0234536. [PMID: 32542004 PMCID: PMC7295213 DOI: 10.1371/journal.pone.0234536] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 05/27/2020] [Indexed: 01/09/2023] Open
Abstract
Aboriginal and Torres Strait Islander (collectively, Indigenous Australian) women experience a higher burden of cervical cancer than other women. The National Cervical Screening Program (NCSP) is failing to meet the needs of Indigenous Australian women, resulting in many women not regularly participating in cervical screening. However, one third of Indigenous Australian women do participate in cervical screening. The reasons that some women in this population commence and continue to screen remain unheard but could provide insights to support women who currently do not participate. We aimed to describe Indigenous Australian women’s experiences and views of participation in cervical screening by yarning (a culturally-appropriate interview technique) with 50 Indigenous Australian women aged 25–70 years who had completed cervical screening in the past five years, recruited via Primary Health Care Centres (PHCCs) from three jurisdictions. Aboriginal or Torres Strait Islander women researchers conducted the interviews. Thematic analysis identified six themes: screening as a means of staying strong and in control; overcoming fears, shame, and negative experiences of screening; needing to talk openly about screening; the value of trusting relationships with screening providers; logistical barriers; and overcoming privacy concerns for women employed at PHCCs. Despite describing screening as shameful, invasive, and uncomfortable, women perceived it as a way of staying healthy and exerting control over their health. This ultimately supported their participation and a sense of empowerment. Women valued open discussion about screening and strong relationships with health providers. We identified logistical barriers and specific barriers faced by women employed at PHCCs. This study is strengthened by a research approach that centred Indigenous Australian women’s voices. Understanding the experiences of Indigenous Australian women who participate in screening will help screening providers support women to start and continue to screen regularly. Recommendations for practice are provided.
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Brotherton JML, Sundström K. More evidence suggesting that 1-dose human papillomavirus vaccination may be effective. Cancer 2020; 126:1602-1604. [PMID: 32037508 DOI: 10.1002/cncr.32696] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 11/23/2019] [Accepted: 12/11/2019] [Indexed: 11/09/2022]
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Dodd RH, Mac O, Brotherton JML, Cvejic E, McCaffery KJ. Levels of anxiety and distress following receipt of positive screening tests in Australia's HPV-based cervical screening programme: a cross-sectional survey. Sex Transm Infect 2020; 96:166-172. [PMID: 32001660 DOI: 10.1136/sextrans-2019-054290] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 12/17/2019] [Accepted: 01/11/2020] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE From December 2017, the Australian National Cervical Screening Program commenced 5 yearly primary human papillomavirus (HPV) screening; one of the first high-income countries to implement primary HPV screening. This study aimed to examine the psychosocial impact of self-reporting testing HPV positive in a sample of women screened since the renewal of the programme. METHODS Women in Australia aged 25-74 years who reported participating in cervical screening since December 2017 were recruited through an online market research company to complete a cross-sectional survey. The primary outcomes were anxiety and general distress. RESULTS 1004 women completed the online survey; 80.9% reported testing HPV negative (HPV-), 6.5% reported testing HPV positive (HPV+) and 12.9% did not know/remember their test result. Women who reported testing HPV+ had significantly poorer psychological outcomes on a range of measures. Those who reported testing HPV+ had higher anxiety scores (53.03 vs 43.58 out of 80, p<0.001), showed more general distress (3.94 vs 2.52 out of 12, p=0.004), concern about their test result (5.02 vs 2.37, p<0.001), expressed greater distress about their test result (7.06 vs 4.74, p<0.001) and cancer worry (quite or very worried 35.4% vs 11.6%, p<0.001) than women who reported testing HPV-. Concern regarding test results was also significantly higher in women who did not know/remember their test result (3.20 vs 2.37, p<0.001) compared with women who reported testing HPV-. Women who reported testing HPV+ had greater knowledge of HPV (9.25 vs 6.62, p<0.001) and HPV testing (2.44 vs 1.30, p<0.001) than women who reported testing HPV-. CONCLUSIONS Receipt of an HPV+ test result was associated with high levels of anxiety and distress, which reached clinical significance. Further work is needed to understand whether distress and concern could be reduced by ensuring all women receive high-quality standardised information with their results or by other interventions.
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Sultana F, Roeske L, Malloy MJ, McDermott TL, Saville M, Brotherton JML. Implementation of Australia's renewed cervical screening program: Preparedness of general practitioners and nurses. PLoS One 2020; 15:e0228042. [PMID: 31995585 PMCID: PMC6988932 DOI: 10.1371/journal.pone.0228042] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 01/06/2020] [Indexed: 11/30/2022] Open
Abstract
The National Cervical Screening Program (NCSP) in Australia underwent major changes on December 1st, 2017. The program changed from 2-yearly Pap testing for women aged 18–69 years to 5-yearly HPV testing for women aged 25–74 years including differential management pathways for oncogenic HPV 16/18 positive versus HPV non16/18 positive test results and the option of self-collection for under-screened women. We conducted a survey among cervical screening providers in primary care to assess their level of preparedness in undertaking cervical screening before (pre-renewal) and after (post-renewal) the new program was implemented. Surveys were conducted between 14th August and 30th November 2017 (pre-renewal) and 9th February and 26th October 2018 (post-renewal) among cervical screening providers who attended education sessions related to the new guidelines. Preparedness was assessed in three areas: 1) level of comfort implementing the new guidelines (7 questions), 2) level of confidence in their ability to convey information about the new guidelines (9 questions) and 3) level of agreement regarding access to resources to support implementation (11 questions). Proportions were calculated for each question response and pre- and post-renewal periods compared using generalised linear models. Open-ended questions related to anticipated barriers and ways to overcome barriers were also included in the questionnaires. Compared to the pre-renewal period, a higher proportion of practitioners in the post-renewal period were more comfortable offering routine screening to women ≥25 years (p = 0.005) and more confident explaining the rationale for not screening before 25 years (p = 0.015); confident explaining a positive HPV 16/18 (p = 0.04) and HPV non 16/18(p = 0.013) test result and were comfortable with not referring women with a positive HPV non 16/18 test result and low grade/negative cytology for colposcopy (p = 0.01). A higher proportion of Victorian practitioners in the post-renewal period sample were also comfortable (p = 0.04) and confident (p = 0.015) recommending self-collection to under-screened women and agreed that self-collection is a reliable test (p = 0.003). The most commonly reported suggestion was to provide information, education and communication materials to both patients and practitioners. Compared to the pre-renewal period, practitioners in the post-renewal period were better prepared to implement the renewed screening program. Healthcare providers require further support to implement the self-collection pathway.
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Tan JHJ, Malloy MJ, Brotherton JML, Saville M. Compliance with follow-up Test of Cure and outcomes after treatment for high-grade cervical intraepithelial neoplasia in Victoria, Australia. Aust N Z J Obstet Gynaecol 2020; 60:433-437. [PMID: 31950488 DOI: 10.1111/ajo.13115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 12/10/2019] [Indexed: 11/26/2022]
Abstract
BACKGROUND Test of Cure (ToC), a combination of testing for oncogenic human papillomavirus (HPV) and cytology, at 12 months post-treatment and annually thereafter, was approved in Australia in 2005 for follow-up of women treated for high-grade squamous intraepithelial lesions (HSIL) of the cervix. AIMS To determine among women resident in Victoria, Australia, the compliance with ToC and the incidence of recurrence up to five years after successful ToC. MATERIALS AND METHODS A retrospective analysis of women with HSIL (diagnosed at pre-treatment punch biopsy or at excision) who had excisional treatment between 1 January 2007 and 31 December 2011. De-identified data were retrieved from the Victorian Cervical Cytology Registry in Melbourne as at 24 April, 2015. Successful ToC is defined as the occurrence of two consecutive normal (negative) co-tests. Recurrence after treatment is defined by histologically detected HSIL or greater. RESULTS There were 8478 women who had excisional treatment for HSIL, with 448 (5.5%) experiencing recurrence. Only 2253 (26.6%) women successfully completed ToC, with a decreasing likelihood of ToC completion by time since year of treatment (32.0% in 2007 compared with 20.9% in 2011). Only one (0.08%) woman had HSIL on histology after successful ToC. From the 2007 cohort, 555 (32.0%) women completed ToC successfully and no HSIL recurrence occurred thereafter (median subsequent follow-up period of 4.7 years). CONCLUSIONS Our study confirmed that women who successfully complete ToC can be returned to five-year routine screening. However, more concerted efforts are needed to ensure that all women treated complete ToC.
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Subasinghe AK, Wark JD, Phillips S, Cornall A, Brotherton JML, Garland SM. Quadrivalent human papillomavirus vaccination successfully reduces the prevalence of vaccine-targeted genotypes in a young, vaccine-eligible-age sample of Australian females. Sex Health 2020; 17:510-516. [PMID: 33341122 DOI: 10.1071/sh20033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 10/26/2020] [Indexed: 12/26/2022]
Abstract
Background The prevalence of genital tract vaccine-type human papillomavirus (HPV) is on the decline due to high vaccine uptake through the national HPV immunisation program in Australia. The aim of this study was to investigate HPV vaccine coverage and factors associated with HPV in a vaccine-eligible sample of young Australian females. METHODS Females aged 16-25 years were recruited into the Young Female Health Initiative study, a young women's health study, via Facebook advertising from 2012 to 2017. Sexually active participants were asked to provide a self-collected vaginal swab for the detection of HPV DNA; positive samples were genotyped. Self-reported HPV vaccination status was confirmed by the National HPV Vaccination Program Register. Outcomes of the study were HPV acquisition and genotype, HPV vaccination status and factors associated with HPV. RESULTS Overall, 22.8% of samples (95% confidence interval (CI) 17.8-27.8%; n = 62/272) were positive for any HPV DNA, of which 19.1% (95% CI 14.4-23.8%; n = 52/272) were oncogenic types. HPV 16 was detected in three samples (1.1%; 95% CI -0.1%, 2.3%; two not HPV vaccinated and one vaccinated after sexual debut). Early sexual debut (<16 years) and multiple sexual partners were independently associated with an increased risk of any HPV. CONCLUSIONS In a community sample of vaccine-eligible-age females with a high vaccine uptake, the prevalence of vaccine-related HPV genotypes is extremely low. Early sexual debut and multiple sexual partners are positively associated with HPV, underscoring the importance of vaccination at the routinely recommended age of 12-13 years for best vaccine impact.
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Machalek DA, Garland SM, Brotherton JML, Bateson D, McNamee K, Stewart M, Rachel Skinner S, Liu B, Cornall AM, Kaldor JM, Tabrizi SN. Very Low Prevalence of Vaccine Human Papillomavirus Types Among 18- to 35-Year Old Australian Women 9 Years Following Implementation of Vaccination. J Infect Dis 2019; 217:1590-1600. [PMID: 29425358 DOI: 10.1093/infdis/jiy075] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 02/06/2018] [Indexed: 12/13/2022] Open
Abstract
Introduction A quadrivalent human papillomavirus vaccination program targeting females aged 12-13 years commenced in Australia in 2007, with catch-up vaccination of 14-26 year olds through 2009. We evaluated the program's impact on HPV prevalence among women aged 18-35 in 2015. Methods HPV prevalence among women aged 18-24 and 25-35 was compared with prevalence in these age groups in 2005-2007. For women aged 18-24, we also compared prevalence with that in a postvaccine study conducted in 2010-2012. Results For the 2015 sample, Vaccination Register-confirmed 3-dose coverage was 53.3% (65.0% and 40.3% aged 18-24 and 25-35, respectively). Prevalence of vaccine HPV types decreased from 22.7% (2005-2007) and 7.3% (2010-2012), to 1.5% (2015) (P trend < .001) among women aged 18-24, and from 11.8% (2005-2007) to 1.1% (2015) (P = .001) among those aged 25-35. Conclusions This study, reporting the longest surveillance follow-up to date, shows prevalence of vaccine-targeted HPV types has continued to decline among young women. A substantial fall also occurred in women aged 25-35, despite lower coverage. Strong herd protection and effectiveness of less than 3 vaccine doses likely contributed to these reductions.
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Velentzis LS, Brotherton JML, Canfell K. Recurrent disease after treatment for cervical pre-cancer: determining whether prophylactic HPV vaccination could play a role in prevention of secondary lesions. Climacteric 2019; 22:596-602. [PMID: 31030590 DOI: 10.1080/13697137.2019.1600500] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Existing modalities can effectively treat high-grade cervical intraepithelial neoplasia (CIN) but around 7% of treated women will develop recurrence of CIN grade 2 or above within 2 years of treatment. Post-treatment surveillance is therefore required to detect residual or recurrent disease. Since the implementation of human papillomavirus (HPV) vaccination programs in high-income countries, significant reductions in high-grade CIN have been recorded in vaccinated cohorts who were predominantly HPV-naïve at vaccination. There is still debate as to the extent of potential benefit from vaccination for women previously infected with HPV, given that HPV incidence in women falls with age and previously cleared infection provides at least some protection against reinfection. Whilst vaccination-induced antibodies could prevent type-specific new infections, it is unclear whether vaccination could also prevent reactivation of latent, previously acquired infection and subsequent disease. A review of the available evidence suggests a potential reduction in risk of recurrent disease if women diagnosed and treated for CIN are offered prophylactic vaccines. New modeled analyses and, ideally, a prospectively designed randomized controlled trial in women treated and then randomized to vaccination or placebo would provide much-needed additional evidence to support the effectiveness and cost-effectiveness of offering vaccination to women after treatment for CIN.
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Novakovic D, Cheng ATL, Zurynski Y, Booy R, Walker PJ, Berkowitz R, Harrison H, Black R, Perry C, Vijayasekaran S, Wabnitz D, Burns H, Tabrizi SN, Garland SM, Elliott E, Brotherton JML. A Prospective Study of the Incidence of Juvenile-Onset Recurrent Respiratory Papillomatosis After Implementation of a National HPV Vaccination Program. J Infect Dis 2019; 217:208-212. [PMID: 29136168 DOI: 10.1093/infdis/jix498] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 09/14/2017] [Indexed: 11/13/2022] Open
Abstract
Background Recurrent respiratory papillomatosis is a rare but morbid disease caused by human papillomavirus (HPV) types 6 and 11. Infection is preventable through HPV vaccination. Following an extensive quadrivalent HPV vaccination program (females 12-26 years in 2007-2009) in Australia, we established a method to monitor incidence and demographics of juvenile-onset recurrent respiratory papillomatosis (JORRP) cases. Methods The Australian Paediatric Surveillance Unit undertakes surveillance of rare pediatric diseases by contacting practitioners monthly. We enrolled pediatric otorhinolaryngologists and offered HPV typing. We report findings for 5 years to end 2016. Results The average annual incidence rate was 0.07 per 100000. The largest number of cases was reported in the first year, with decreasing annual frequency thereafter. Rates declined from 0.16 per 100000 in 2012 to 0.02 per 100000 in 2016 (P = .034). Among the 15 incident cases (60% male), no mothers were vaccinated prepregnancy, 20% had maternal history of genital warts, and 60% were first born; 13/15 were born vaginally. Genotyped cases were HPV-6 (n = 4) or HPV-11 (n = 3). Conclusion To our knowledge, this is the first report internationally documenting decline in JORRP incidence in children following a quadrivalent HPV vaccination program.
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Brotherton JML. The remarkable impact of bivalent HPV vaccine in Scotland. BMJ 2019; 365:l1375. [PMID: 30944088 DOI: 10.1136/bmj.l1375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Hall MT, Smith MA, Brotherton JML, Simms KT, Canfell K. Cancer elimination thresholds: one size does not fit all - Authors' reply. LANCET PUBLIC HEALTH 2019; 4:e87. [PMID: 30738508 DOI: 10.1016/s2468-2667(18)30258-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 11/26/2018] [Indexed: 12/24/2022]
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Smith MA, Brotherton JML, Hammond IG, Anderson L, Simms KT, Saville M, Canfell K. Inaccurate and fundamentally flawed analysis risks undermining confidence in cervical screening programs. J Am Soc Cytopathol 2018; 7:336-338. [PMID: 31043305 DOI: 10.1016/j.jasc.2018.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 08/13/2018] [Indexed: 06/09/2023]
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Staples C, Butler M, Nguyen J, Durrheim DN, Cashman P, Brotherton JML. Opportunities to increase rates of human papillomavirus vaccination in the New South Wales school program through enhanced catch-up. Sex Health 2018; 13:536-539. [PMID: 27568237 DOI: 10.1071/sh15132] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Accepted: 07/04/2016] [Indexed: 11/23/2022]
Abstract
Background The National Human Papillomavirus (HPV) Vaccination Program provides HPV vaccine to high school students through school-based vaccination. We aimed to: 1) assess the vaccine completion rates achieved when general practice is used for completing doses missed at school; 2) estimate the extent of under-notification by general practices of vaccine doses administered; and 3) assess the reasons reported by parents of students for non-completion of HPV vaccination. METHODS A postal survey was conducted of parents and carers of students and identified, using school-program records, as incompletely vaccinated in a large regional area of northern NSW vaccinated during 2010. Information about additional HPV vaccine doses received or reasons for non-completion were sought. Responses were analysed and records cross-checked against the National HPV Vaccination Program Register. RESULTS Of 660 parents or carers contacted, 207 (31.4%) responded. We found: 1) completion rates increased, an additional 122/207 (45.2%) students had completed all three doses of HPV through their general practitioner (GP); 2) under-notification of GP doses to the National HPV Vaccination Program Register was an issue with only 5/165 (3.0%) reported; 3) the main reason for non-completion was being unaware of the opportunity to catch-up at a GP. CONCLUSIONS Underreporting by GPs of HPV vaccine doses administered and failure to complete courses identifies two opportunities to increase HPV vaccine coverage. These could be addressed by extending provision of catch-up HPV doses in school and by developing practice software solutions for automatic notification of doses from GPs. Reasons given by parents for non-completion, mostly logistical barriers, indicate a high degree of acceptance of HPV vaccination.
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Toliman PJ, Kaldor JM, Badman SG, Phillips S, Tan G, Brotherton JML, Saville M, Vallely AJ, Tabrizi SN. Evaluation of self-collected vaginal specimens for the detection of high-risk human papillomavirus infection and the prediction of high-grade cervical intraepithelial lesions in a high-burden, low-resource setting. Clin Microbiol Infect 2018; 25:496-503. [PMID: 29906593 DOI: 10.1016/j.cmi.2018.05.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Revised: 05/08/2018] [Accepted: 05/12/2018] [Indexed: 12/20/2022]
Abstract
OBJECTIVES To compare the performance of self-collected vaginal (V) specimens with clinician-collected cervical (C) specimens for detection of high-risk human papillomavirus (hrHPV) and cervical disease using the Cepheid Xpert HPV, Roche Cobas 4800 HPV and Hologic Aptima HPV assays. METHODS Women aged 30-59 years (n = 1005) were recruited at two clinics in Papua New Guinea, and they provided specimens for testing at point-of-care using the Xpert HPV Test, and for subsequent testing using the Cobas HPV (n = 981) and Aptima HPV (n = 983) assays. Liquid-based cytology was performed on C specimens to predict underlying high-grade squamous intraepithelial lesions (HSIL). V specimen results of each assay were evaluated against a constructed reference standard and for detection of HSIL or worse. RESULTS There was substantial (κ >0.6) agreement in hrHPV detection between V and C specimens across all three assays. The sensitivity, specificity, and positive and negative predictive values of Xpert HPV using self-collected V specimens for the detection of HPV type 16 according to the constructed reference standard were 92.1%, 93.1%, 63.6% and 98.9%, respectively; compared with 90.4%, 94.3%, 67.8% and 98.7% for Cobas 4800 HPV; and 63.2%, 97.2%, 75.0% and 95.3% for Aptima HPV. Similar results were observed for all hrHPV types (combined) and for HPV types 18/45, on all three assays. The detection of any hrHPV using self-collected specimens had high sensitivity (86%-92%), specificity (87%-94%) and negative predictive value (>98%) on all assays for HSIL positivity. CONCLUSIONS Xpert HPV, using self-collected vaginal specimens, has sufficient accuracy for use in point-of-care 'test-and-treat' cervical screening strategies in high-burden, low-resource settings.
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Pillsbury AJ, Quinn HE, Evans TD, McIntyre PB, Brotherton JML. Population-Level Herd Protection of Males From a Female Human Papillomavirus Vaccination Program: Evidence from Australian Serosurveillance. Clin Infect Dis 2018; 65:827-832. [PMID: 29017279 DOI: 10.1093/cid/cix436] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 05/07/2017] [Indexed: 12/24/2022] Open
Abstract
Background Australia instituted funded female human papillomavirus (HPV) immunization in 2007, followed by a targeted male vaccination program in 2013. To date, Australia is one of only several countries with a funded male HPV immunization program. In 2012-2013, we conducted a survey of HPV seroprevalence in males to assess whether or not a herd impact of female vaccination could be observed. Methods We conducted a cross-sectional study of de-identified residual diagnostic test serum samples from males aged 15-39 years from laboratories in 3 Australian states and calculated the proportion seropositive to HPV types 6, 11, 16, and 18. We compared type-specific results by age group against those from a baseline 2005 Australian HPV serosurvey. Results There were decreases in proportion seropositive for every HPV type across all age groups, many statistically significant. The largest decrease was observed for HPV-11, with decreases of 8- and 9-fold for ages 20-29 and 30-39 years, respectively. Despite substantial reductions in seroprevalence, at least 9% of males were seropositive for at least 1 of the 4 HPV types. Conclusions This is the first serosurvey confirming broad population-level impact in males from female HPV vaccination. Our research may assist policy makers considering implementing HPV vaccination programs.
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Diaz A, Baade PD, Valery PC, Whop LJ, Moore SP, Cunningham J, Garvey G, Brotherton JML, O’Connell DL, Canfell K, Sarfati D, Roder D, Buckley E, Condon JR. Comorbidity and cervical cancer survival of Indigenous and non-Indigenous Australian women: A semi-national registry-based cohort study (2003-2012). PLoS One 2018; 13:e0196764. [PMID: 29738533 PMCID: PMC5940188 DOI: 10.1371/journal.pone.0196764] [Citation(s) in RCA: 13] [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: 10/24/2017] [Accepted: 04/19/2018] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Little is known about the impact of comorbidity on cervical cancer survival in Australian women, including whether Indigenous women's higher prevalence of comorbidity contributes to their lower survival compared to non-Indigenous women. METHODS Data for cervical cancers diagnosed in 2003-2012 were extracted from six Australian state-based cancer registries and linked to hospital inpatient records to identify comorbidity diagnoses. Five-year cause-specific and all-cause survival probabilities were estimated using the Kaplan-Meier method. Flexible parametric models were used to estimate excess cause-specific mortality by Charlson comorbidity index score (0,1,2+), for Indigenous women compared to non-Indigenous women. RESULTS Of 4,467 women, Indigenous women (4.4%) compared to non-Indigenous women had more comorbidity at diagnosis (score ≥1: 24.2% vs. 10.0%) and lower five-year cause-specific survival (60.2% vs. 76.6%). Comorbidity was associated with increased cervical cancer mortality for non-Indigenous women, but there was no evidence of such a relationship for Indigenous women. There was an 18% reduction in the Indigenous: non-Indigenous hazard ratio (excess mortality) when comorbidity was included in the model, yet this reduction was not statistically significant. The excess mortality for Indigenous women was only evident among those without comorbidity (Indigenous: non-Indigenous HR 2.5, 95%CI 1.9-3.4), indicating that factors other than those measured in this study are contributing to the differential. In a subgroup of New South Wales women, comorbidity was associated with advanced-stage cancer, which in turn was associated with elevated cervical cancer mortality. CONCLUSIONS Survival was lowest for women with comorbidity. However, there wasn't a clear comorbidity-survival gradient for Indigenous women. Further investigation of potential drivers of the cervical cancer survival differentials is warranted. IMPACT The results highlight the need for cancer care guidelines and multidisciplinary care that can meet the needs of complex patients. Also, primary and acute care services may need to pay more attention to Indigenous Australian women who may not obviously need it (i.e. those without comorbidity).
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Novakovic D, Brotherton JML. Reply to San Giorgi and Dikkers. J Infect Dis 2018; 217:1504-1505. [PMID: 29293995 DOI: 10.1093/infdis/jix675] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 12/20/2017] [Indexed: 11/14/2022] Open
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Mesher D, Soldan K, Lehtinen M, Beddows S, Brisson M, Brotherton JML, Chow EPF, Cummings T, Drolet M, Fairley CK, Garland SM, Kahn JA, Kavanagh K, Markowitz L, Pollock KG, Söderlund-Strand A, Sonnenberg P, Tabrizi SN, Tanton C, Unger E, Thomas SL. Population-Level Effects of Human Papillomavirus Vaccination Programs on Infections with Nonvaccine Genotypes. Emerg Infect Dis 2018; 22:1732-40. [PMID: 27648688 PMCID: PMC5038419 DOI: 10.3201/eid2210.160675] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
We analyzed human papillomavirus (HPV) prevalences during prevaccination and postvaccination periods to consider possible changes in nonvaccine HPV genotypes after introduction of vaccines that confer protection against 2 high-risk types, HPV16 and HPV18. Our meta-analysis included 9 studies with data for 13,886 girls and women ≤19 years of age and 23,340 women 20-24 years of age. We found evidence of cross-protection for HPV31 among the younger age group after vaccine introduction but little evidence for reductions of HPV33 and HPV45. For the group this same age group, we also found slight increases in 2 nonvaccine high-risk HPV types (HPV39 and HPV52) and in 2 possible high-risk types (HPV53 and HPV73). However, results between age groups and vaccines used were inconsistent, and the increases had possible alternative explanations; consequently, these data provided no clear evidence for type replacement. Continued monitoring of these HPV genotypes is important.
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Drolet M, Laprise JF, Brotherton JML, Donovan B, Fairley CK, Ali H, Bénard É, Martin D, Brisson M. The Impact of Human Papillomavirus Catch-Up Vaccination in Australia: Implications for Introduction of Multiple Age Cohort Vaccination and Postvaccination Data Interpretation. J Infect Dis 2017; 216:1205-1209. [PMID: 28968800 DOI: 10.1093/infdis/jix476] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 09/08/2017] [Indexed: 11/14/2022] Open
Abstract
We used transmission-dynamic modeling to estimate the added effectiveness of vaccinating multiple cohorts of females (12-26 years) in Australia compared with the theoretical introduction of routine-only (12-13 years) vaccination. Our results suggest that vaccinating multiple cohorts produced markedly faster direct/herd effects, and it added benefits that last for 20-70 years. Furthermore, the number needed to vaccinate to prevent 1 anogential warts (AGW) case or cervical cancer (CC) was similar for routine + catch-up (AGW = 9.9, CC = 678) and routine-only vaccination (AGW = 9.9, CC = 677), thus providing similar levels of efficiency per person vaccinated.
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Garland SM, Brotherton JML, Moscicki AB, Kaufmann AM, Stanley M, Bhatla N, Sankaranarayanan R, de Sanjosé S, Palefsky JM. HPV vaccination of immunocompromised hosts. PAPILLOMAVIRUS RESEARCH (AMSTERDAM, NETHERLANDS) 2017; 4:35-38. [PMID: 29179867 PMCID: PMC5883202 DOI: 10.1016/j.pvr.2017.06.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 06/02/2017] [Accepted: 06/02/2017] [Indexed: 01/04/2023]
Abstract
It is well-established that immunocompromised people are at increased risk of HPV-related disease compared with those who are immunocompetent. Prophylactic HPV sub-unit vaccines are safe and immunogenic in immunocompromised people and it is strongly recommended that vaccination occur according to national guidelines. When delivered to immunocompromised populations, HPV vaccines should be given as a 3-dose regimen.
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Brotherton JML. Confirming cross-protection of bivalent HPV vaccine. THE LANCET. INFECTIOUS DISEASES 2017; 17:1227-1228. [DOI: 10.1016/s1473-3099(17)30539-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 08/15/2017] [Indexed: 10/18/2022]
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Chow EPF, Wigan R, McNulty A, Bell C, Johnson M, Marshall L, Regan DG, Owen L, Brotherton JML, Bradshaw CS, Fairley CK, Russell D, Chen MY. Early sexual experiences of teenage heterosexual males in Australia: a cross-sectional survey. BMJ Open 2017; 7:e016779. [PMID: 29038178 PMCID: PMC5652582 DOI: 10.1136/bmjopen-2017-016779] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE There are limited data on the patterns of early sexual behaviours among Australian teenage heterosexual boys. This study describes the nature and onset of early sexual experiences in this population through a cross-sectional survey. DESIGN A cross-sectional survey between 2014 and 2015 SETTING: Major sexual health clinics and community sources across Australia PARTICIPANTS: Heterosexual men aged 17-19 years RESULTS: There were 191 men in the study with a median age of 19.1 years. Median age at first oral sex was 16.4 years (IQR: 15.5-17.7) and 16.9 years (IQR: 16.0-18.0) for first vaginal sex. Most men had engaged in oral sex (89.5%) and vaginal sex (91.6%) in the previous 12 months with 32.6% reporting condom use at last vaginal sex. Of the total lifetime female partners for vaginal sex reported by men as a group (n=1187): 54.3% (n=645) were the same age as the man, 28.3% (n=336) were a year or more younger and 17.4% (n=206) were a year or more older. Prior anal sex with females was reported by 22% with 47% reporting condom use at last anal sex. Median age at first anal sex was 18.2 years (IQR: 17.3-18.8). Anal sex with a female was associated with having five or more lifetime female sexual partners for oral and vaginal sex. CONCLUSIONS These data provide insights into the trajectory of sexual behaviours experienced by teenage heterosexual boys following sexual debut, findings which can inform programme promoting sexual health among teenage boys.
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Brotherton JML, Bloem PN. Population-based HPV vaccination programmes are safe and effective: 2017 update and the impetus for achieving better global coverage. Best Pract Res Clin Obstet Gynaecol 2017; 47:42-58. [PMID: 28986092 DOI: 10.1016/j.bpobgyn.2017.08.010] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 08/27/2017] [Indexed: 01/11/2023]
Abstract
Persistent oncogenic human papillomavirus (HPV) is the cause of cervical cancer, as well as cancers of the anus, penis, vulva, vagina and oropharynx. There is good evidence that prophylactic HPV vaccines are immunogenic and effective against targeted-type HPV infections and type-specific genital lesions, including high-grade cervical intraepithelial neoplasia (CIN), when administered prior to HPV infection. There is good evidence that HPV vaccines are safe in population usage, with the most frequent adverse event being injection-site reactions. There is evidence to support some cross-protection against non-targeted types occurring following the administration of HPV vaccines. There is limited evidence suggesting that HPV vaccines may be beneficial in preventing future disease in women treated for high-grade CIN. This chapter focuses on the accumulated evidence regarding the global use of the three licensed HPV vaccines including safety, immunogenicity, duration of protection, effectiveness, coverage to date and barriers to higher coverage.
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Brotherton JML, Tabrizi SN, Phillips S, Pyman J, Cornall AM, Lambie N, Anderson L, Cummings M, Payton D, Scurry JP, Newman M, Sharma R, Saville M, Garland SM. Looking beyond human papillomavirus (HPV) genotype 16 and 18: Defining HPV genotype distribution in cervical cancers in Australia prior to vaccination. Int J Cancer 2017; 141:1576-1584. [PMID: 28677147 DOI: 10.1002/ijc.30871] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 04/27/2017] [Accepted: 06/12/2017] [Indexed: 01/08/2023]
Abstract
Australia has implemented a high-coverage HPV vaccination program but has not, to date, established the distribution of HPV types that occur in cervical cancers in Australia. This information is important for determining the potential for cervical cancer prevention with both current and broader spectrum HPV vaccines. We analysed 847 cervical cancers diagnosed 2005 to 2015 in tertiary centres in the three most populous Australian states with resolution of specimens containing multiple HPV types using laser-capture microdissection. Archived FFPE tissue was reviewed by specialist pathologists, sandwich sectioned, and initially whole-tissue sections genotyped for HPV. Samples were first genotyped using SPF10-LiPA25 (version 1). Negative samples were screened with DNA ELISA kit HPV SPF10, followed by genotyping with SPF+ LiPA if ELISA positive. If still negative, samples were tested on a qPCR assay targeting the E6 region of HPV16, 18, 45 and 33. Of the 847 cancers (65.1% squamous, 28.7% adenocarcinoma, 4.3% adenosquamous, 2.0% other), 92.9% had HPV detected. Of the HPV-positive cancers, 607 of 787 (77.1%) contained HPV16 or 18, 125 of 787 (15.9%) contained HPV31/33/45/52 or 58, and 55 (7.0%) another HPV type. There was a strong correlation between HPV type and age, with younger women most likely to have HPV16/18 detected and least likely HPV negative. Our findings indicate that cervical cancers diagnosed in Australia more frequently contain HPV16/18 than in international series. This could be due to cervical screening in Australia increasing the proportion of adenocarcinomas, in which types 18 and 16 more strongly predominate, due to prevention of squamous cancers.
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