Dataset Information

Incidence of HPV and HPV related dysplasia in elderly women in Sweden.

ABSTRACT: BACKGROUND:About one-third of the cervical cancer cases in Sweden occur in women over the age of 60. The primary aim of this study was to analyze the incidence of HPV, and HPV related dysplasia, in elderly women who had an HPV negative test at the age of 60 years or older. METHODS:From October 2004 to June 2019, 1784 women aged 60-90 years were sampled for an HPV test when attending an outpatient gynecology clinic. Of these women, 827 HPV-negative women had two or more HPV tests at intervals of three months to eleven years (mean 3.2 years). The women with positive results had a repeat HPV test and cytology after 2.5 months on average. Those with a positive repeat HPV test were examined by colposcopy and biopsy. FINDINGS:The overall prevalence of HPV was 5.4%, (95%CI 4.4-6.6, 96/1784). The incidence of HPV in the 827 women, who were HPV negative in their first test, was 2.4% (95%CI 1.5-3.8, n = 20). At the repeat test 1.2% remained positive (95%CI 0.6-2.3, n = 10). HPV-related dysplasia diagnosed by histology was found in 1.2% (95%CI 0.6-2.3, n = 10) of the 827 women. CIN2+ was found in 0.5% (95%CI 0.2-1.3, n = 4). In the repeat HPV test 52.6% 10/19) were HPV positive. The time between an HPV negative test and an HPV positive test and CIN2+ was on average 45.5 months (range 10-85 months). The positive predictive value (PPV) for CIN2+ was 20.0% in the first positive HPV test and 40.0% in the repeat HPV test. The women with CIN2+ had normal cytology. No cancer or glandular dysplasia was detected. INTERPRETATION:In this study older HPV-negative women were at risk of becoming HPV positive. Among the women who were HPV positive in a repeat test, there was a high risk of dysplasia.

SUBMITTER: Lanner L

PROVIDER: S-EPMC7083300 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Incidence of HPV and HPV related dysplasia in elderly women in Sweden.

Lannér Lars L Lindström Annika Kristina AK

PloS one 20200320 3

<h4>Background</h4>About one-third of the cervical cancer cases in Sweden occur in women over the age of 60. The primary aim of this study was to analyze the incidence of HPV, and HPV related dysplasia, in elderly women who had an HPV negative test at the age of 60 years or older.<h4>Methods</h4>From October 2004 to June 2019, 1784 women aged 60-90 years were sampled for an HPV test when attending an outpatient gynecology clinic. Of these women, 827 HPV-negative women had two or more HPV tests a ...[more]

PMID: 32196503

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Project description:ObjectiveCosts associated with HPV-related diseases such as cervical dysplasia, cervical cancer, and genital warts have not been evaluated in Sweden. These costs must be estimated in order to determine the potential savings if these diseases were eradicated and to assess the combined cost-effectiveness of HPV vaccination and cervical cancer screening. The present study aimed to estimate prevention, management, and treatment costs associated with cervical dysplasia, cervical cancer, and genital warts from a societal perspective in Sweden in 2009, 1 year before the quadrivalent HPV vaccination program was implemented.Methods and materialsData from the Swedish cervical cancer screening program was used to calculate the costs associated with prevention (cytological cervical cancer screening), management (colposcopy and biopsy following inadequate/abnormal cytological results), and treatment of CIN. Swedish official statistics were used to estimate treatment costs associated with cervical cancer. Published epidemiological data were used to estimate the number of incident, recurrent, and persistent cases of genital warts; a clinical expert panel assessed management and treatment procedures. Estimated visits, procedures, and use of medications were used to calculate the annual cost associated with genital warts.ResultsFrom a societal perspective, total estimated costs associated with cervical cancer and genital warts in 2009 were €106.6 million, of which €81.4 million (76%) were direct medical costs. Costs associated with prevention, management, and treatment of CIN were €74 million; screening and management costs for women with normal and inadequate cytology alone accounted for 76% of this sum. The treatment costs associated with incident and prevalent cervical cancer and palliative care were €23 million. Estimated costs for incident, recurrent and persistent cases of genital warts were €9.8 million.ConclusionPrevention, management, and treatment costs associated with cervical dysplasia, cervical cancer, and genital warts are substantial. Defining these costs is important for future cost-effectiveness analyses of the quadrivalent HPV vaccination program in Sweden.

Project description:The objective of this study was to investigate the hypothesis that HPV vaccination administered in patients with low-grade (LG) cytology shortly after an initial colposcopic assessment could prospectively alter HPV-related biomarkers. This was a prospective pilot observational study involving women attending a colposcopy clinic for evaluation of abnormal LG cytology that were advised to undergo HPV vaccination and proceeded accordingly. These women were compared with a matched unvaccinated group. Women requiring cervical biopsies or CIN treatment were excluded. A full three-dose HPV vaccination was undertaken with either the 2-valent or the 4-valent anti-HPV VLP vaccine. LBC samples were obtained prior and after the completion of the vaccination regimen and tested for HPV DNA genotyping (CLART-2 HPV test) and E6 and E7 mRNA (NASBA technique). Alterations of HPV-related biomarkers at a colposcopy reassessment appointment 12 months later. The p-values, relative risk (RR), absolute relative risk (ARR), number needed to treat (NNT) and 95% confidence intervals for each biomarker in each group were assessed. A total of 309 women were included in the analysis. One hundred fifty-two women received the vaccine. HPV vaccination reduced in a statistically significant manner (p < 0.05) HPV DNA positivity rates for genotypes 16, 18, and 31, RR = 1.6 (95% CI: 1.1 to 2.3), RR = 1.7 (95% CI: 1.1 to 2.8), and RR = 1.8 (95% CI: 1.0 to 2.9), in women who only tested DNA-positive for HPV16, 18, and 31 genotypes, respectively, prior to vaccination. A less pronounced, statistically insignificant reduction was shown for women who tested positive for both HPV DNA and mRNA E6 and E7 expression for HPV16, 18, and 33 subtypes. Statistically significant reduction in HPV mRNA positivity was solely documented for genotype 31 (p = 0.0411). HPV vaccination appears to significantly affect the rates of HPV16, 18, and 31 DNA-positive infections in the population testing HPV DNA-positive for the aforementioned genotypes. The above findings deserve verification in larger cohorts.

Dataset Information

Incidence of HPV and HPV related dysplasia in elderly women in Sweden.

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Incidence of HPV and HPV related dysplasia in elderly women in Sweden.

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