scholarly journals Distribution of human papillomavirus types, cervical cancer screening history, and risk factors for infection in Manitoba

2012 ◽  
Vol 32 (4) ◽  
pp. 177-185 ◽  
Author(s):  
A.A. Demers ◽  
B. Shearer ◽  
A. Severini ◽  
R. Lotocki ◽  
E.V. Kliewer ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cervical Cancer ◽  
Human Papillomavirus ◽  
Cancer Screening ◽  
Pap Test ◽  
Hpv Infection ◽  
Sexual Partners ◽  
Hpv Typing ◽  
Number Of Sexual Partners ◽  
Screening History

Objectives We conducted a study to investigate the prevalence of human papillomavirus (HPV) infections in an opportunistic sample of women in Manitoba, Canada. We inquired about risk factors associated with HPV infections and linked the HPV typing results with the cervical cancer screening history of the participants. Methods The study population included 592 women attending Papanicolaou (Pap) test clinics. After signing a consent form, participants were given a self-administered questionnaire on risk factors and received a conventional Pap test. Residual cells from the Pap tests were collected and sent for HPV typing. Results The mean age of the population was 43 years. A total of 115 participants (19.4%) had an HPV infection, 89 of whom had a normal Pap test. Of those who were HPV-positive, 61 (10.3%) had high-risk (Group 1) HPV. HPV-16 was the most prevalent type (15/115: 13.0% of infections). The most consistent risk factors for HPV infection were young age, Aboriginal ethnicity, higher lifetime number of sexual partners and higher number of sexual partners in the previous year. Conclusion The prevalence of HPV types in Manitoba is consistent with the distributions reported in other jurisdictions. These data provide baseline information on type-specific HPV prevalence in an unvaccinated population and can be useful in evaluating the effectiveness of the HPV immunization program. An added benefit is in the validation of a proof of concept which links a population-based Pap registry to laboratory test results and a risk behaviour survey to assess early and late outcomes of HPV infection. This methodology could be applied to other jurisdictions across Canada where such capacities exist.

scholarly journals Prevalence of Human Papillomavirus Infection and Cervical Cancer Screening among Riverside Women of the Brazilian Amazon

2017 ◽  
Vol 39 (07) ◽  
pp. 350-357 ◽  
Author(s):  
Daniel Duarte ◽  
Rodrigo Vieira ◽  
Elza Brito ◽  
Maria Pinheiro ◽  
Jeniffer Monteiro ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cervical Cancer ◽  
Human Papillomavirus ◽  
Low Income ◽  
Pap Test ◽  
Brazilian Amazon ◽  
Hpv Infection ◽  
Cervical Lesions ◽  
Hpv 16 ◽  
Hpv 18

Purpose The aim of this study was to evaluate the overall and type-specific prevalence of human papillomavirus (HPV) infection among females living in riverside communities in the state of Pará, in the Eastern Brazilian Amazon. These communities are inhabited by low-income people, and are accessible only by small boats. Cervical cytology and risk factors for HPV infection were also assessed. Methods Cervical samples from 353 women of selected communities were collected both for Papanicolau (Pap) test and HPV detection. Conventional polymerase chain reaction (PCR) and real-time PCR were used to assess the overall and type-specific prevalence of HPV-16 and HPV-18, the main oncogenic types worldwide. Epidemiological questionnaires were used for the assessment of the risk factors for HPV infection. Results The mean age of the participants was 37 years (standard deviation [SD] ± 13.7). Most were married or with a fixed sexual partner (79%), and had a low educational level (80%) and family monthly income (< U$ 250; 53%). Overall, HPV prevalence was 16.4% (n = 58), with 8 cases of HPV-16 (2.3%) and 5 of HPV-18 (1.4%). Almost 70% of the women surveyed had never undergone the Pap test. Abnormal cytology results were found in 27.5% (n = 97) of the samples, with higher rates of HPV infection according to the severity of the lesions (p = 0.026). Conclusions The infections by HPV-16 and HPV-18 were not predominant in our study, despite the high prevalence of overall HPV infection. Nevertheless, the oncogenic potential of these types and the low coverage of the Pap test among women from riverside communities demonstrate a potential risk for the development of cervical lesions and their progression to cervical cancer, since the access to these communities is difficult and, in most cases, these women do not have access to primary care and public health services.

scholarly journals Prevalence and correlation of human papillomavirus genotypes with clinical factors in cervical samples from Mexican women

2020 ◽  
pp. 153537022095974
Author(s):  
Fabiola Hernández-Rosas ◽  
Erika Orozco-Hernández ◽  
Liliana Maza-Sánchez ◽  
Pamela Citlalli Salgado-García ◽  
Enrique Navarro-Vidal ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cervical Cancer ◽  
Cancer Screening ◽  
Hpv Infection ◽  
Sexual Partners ◽  
Mexican Women ◽  
Hpv Dna ◽  
Screening Strategies ◽  
Hpv Genotypes ◽  
Cytological Abnormalities

In the last decade, the inclusion of HPV DNA testing in cervical cancer screening has provided one of the best strategies for the prevention and timely detection of HPV. We conducted a high-throughput HPV genotyping study based on MALDI-TOF mass spectrometry to determine the prevalence of 24 HPV genotypes, including oncogenic genotypes, in Mexican women and correlated the results with cytological findings and clinical variables. We likewise identified the risk factors in patients with the HPV infection. Our study included 1000 women from Sonora, Mexico, who participated in cervical cancer screening campaigns and who underwent a Pap smear and HPV DNA test. The results showed that the overall prevalence of HPV was 27.2%, 18.5% with single, and 8.7% multiple infections. The low-risk HPV genotype 6 (8.5%) and oncogenic genotypes 31 (8.1%) and 53 (4.4%) were the most prevalent in the study population. The number of lifetime sexual partners, previous STIs, and age at first intercourse was significantly associated with HPV infection ( P ≤ 0.05). Smoking (OR = 1.5609; 95% IC 1.062–2.292) and more than three lifetime sexual partners (OR = 1.609; 95% IC = 1.124–2.303) represented risk factors for HPV infection. Cytological abnormalities were found in 3.4% of the HPV-positive samples. CIN 1–3 occurred in 0.6% of high-risk HPV cases. In general, the prevalence of the HPV genotypes is high in Mexican women with normal cytological findings. This issue highlights the importance of HPV research in seemingly healthy women and could help guide screening strategies for cervical cancer prevention in Mexico. Impact statement We are submitting data regarding the prevalence and type distribution of the HPV infection and the risk factors associated with it, which may provide a valuable reference to reinforce screening strategies, and to maintain HPV genotype surveillance in Mexico. We discuss the overall prevalence of HPV infection as detected in normal cytological samples stratified by age, different types of infection, and oncogenic capacity. One of the most important findings was that common HPV genotypes detected in healthy women were the genotype numbers: 6, 31, 16, and 56, likewise, smoking and having a history of more than three sexual partners over their lifetime, represented the main risk factors in this study. Furthermore, we found a low frequency of cytological abnormalities and CIN 1–3 in women with HR-HPV.

scholarly journals Impact of human papillomavirus (HPV) self-collection on subsequent cervical cancer screening completion among under-screened US women: MyBodyMyTest-3 protocol for a randomized controlled trial

Trials ◽  
2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Lisa P. Spees ◽  
Andrea C. Des Marais ◽  
Stephanie B. Wheeler ◽  
Michael G. Hudgens ◽  
Sarah Doughty ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Human Papillomavirus ◽  
Cancer Screening ◽  
Cervical Cancer Screening ◽  
Cancer Incidence ◽  
Perceived Risk ◽  
Pap Test ◽  
Hpv Testing ◽  
Cervical Cancer Incidence ◽  
Incidence And Mortality

Abstract Background Screening substantially reduces cervical cancer incidence and mortality. More than half of invasive cervical cancers are attributable to infrequent screening or not screening at all. The current study, My Body My Test (MBMT), evaluates the impact of mailed kits for self-collection of samples for human papillomavirus (HPV) testing on completion of cervical cancer screening in low-income, North Carolina women overdue for cervical cancer screening. Methods/design The study will enroll at least 510 US women aged 25–64 years who report no Pap test in the last 4 years and no HPV test in the last 6 years. We will randomize participants to an intervention or control arm. The intervention arm will receive kits to self-collect a sample at home and mail it for HPV testing. In both the intervention and control arms, participants will receive assistance in scheduling an appointment for screening in clinic. Study staff will deliver HPV self-collection results by phone and assist in scheduling participants for screening in clinic. The primary outcome is completion of cervical cancer screening. Specifically, completion of screening will be defined as screening in clinic or receipt of negative HPV self-collection results. Women with HPV-negative self-collection results will be considered screening-complete. All other participants will be considered screening-complete if they obtain co-testing or Pap test screening at a study-affiliated institution or other clinic. We will assess whether the self-collection intervention influences participants’ perceived risk of cervical cancer and whether perceived risk mediates the relationship between HPV self-collection results and subsequent screening in clinic. We also will estimate the incremental cost per woman screened of offering at-home HPV self-collection kits with scheduling assistance as compared to offering scheduling assistance alone. Discussion If mailed self-collection of samples for HPV testing is an effective strategy for increasing cervical cancer screening among women overdue for screening, this method has the potential to reduce cervical cancer incidence and mortality in medically underserved women at higher risk of developing cervical cancer. Trial registration ClinicalTrials.gov NCT02651883, Registered on 11 January 2016.

scholarly journals Knowledge of human papillomavirus and Pap test among Brazilian university students

2019 ◽  
Vol 65 (5) ◽  
pp. 625-632 ◽  
Author(s):  
Aimée Denzeler Baptista ◽  
Carolina Xavier Simão ◽  
Vitoria Carvalho Guimarães dos Santos ◽  
Juliana Gil Melgaço ◽  
Silvia Maria Baeta Cavalcanti ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Human Papillomavirus ◽  
University Students ◽  
Pap Test ◽  
Hpv Infection ◽  
Health Science ◽  
Cancer Information ◽  
Papanicolaou Test ◽  
Factors Associated ◽  
Increased Risk

SUMMARY OBJECTIVE: Human papillomavirus (HPV) is the most prevalent sexually transmitted virus in the world and is associated with an increased risk of cervical cancer. The most effective approach to cervical cancer control continues to be screening through the preventive Papanicolaou test (Pap test). This study analyzes the knowledge of university students of health science programs as well as undergraduate courses in other areas of knowledge on important questions regarding HPV. METHOD: Four hundred and seventy-three university students completed a questionnaire assessing their overall knowledge regarding HPV infection, cervical cancer, and the Pap test. A descriptive analysis is presented, and multivariate analysis using logistic regression identified factors associated with HPV/cervical cancer information. RESULTS: Knowledge was higher for simple HPV-related and Pap test questions but was lower for HPV interrelations with genital warts and cervical cancer. Being from the health science fields and having high income were factors associated with greater knowledge. Only the minority of the participants recognized all the situations that increased the risk of virus infection presented in the questionnaire. CONCLUSIONS: These findings highlight the need for educational campaigns regarding HPV infection, its potential as a cervical cancer agent and the forms of prevention available.

scholarly journals Genotypes distribution of human papillomavirus in cervical samples of Ecuadorian women

2016 ◽  
Vol 19 (1) ◽  
pp. 160-166 ◽  
Author(s):  
Gustavo David García Muentes ◽  
Lindsay Karen García Rodríguez ◽  
Ramiro Israel Burgos Galarraga ◽  
Franklin Almeida Carpio ◽  
Juan Carlos Ruiz Cabezas
Keyword(s):  
Cervical Cancer ◽  
Human Papillomavirus ◽  
Cancer Screening ◽  
Cervical Cancer Screening ◽  
Gynecological Cancer ◽  
Hpv Infection ◽  
Multiple Infections ◽  
Hpv 16 ◽  
Hpv Dna ◽  
Hpv 18

ABSTRACT: Introduction: Human papillomavirus (HPV) is considered a necessary causative agent for developing oropharyngeal, anal and cervical cancer. Among women in Ecuadorian population, cervical cancer ranks as the second most common gynecological cancer. Not many studies about HPV burden have been published in Ecuador, and genotypes distribution has not been established yet. The little data available suggest the presence of other genotypes different than 16 and 18. Objectives: In the present study, we attempt to estimate the prevalence of HPV 16, HPV 18 and other 35 genotypes among Ecuadorian women undergoing cervical cancer screening. The overall prevalence of HPV infection was also estimated. Methods: Routine cervical samples were analyzed using Linear Array(r) HPV Genotyping test (Roche). Results: A total of 1,581 cervical samples obtained from Ecuadorian women undergoing cervical cancer screening were included in this study. HPV DNA was detected in 689 cervical samples (43.58%). Of these samples, 604 (38.20%) were positive for a single HPV genotype, while another 85 (5.37%) samples were positive for multiple HPV types. Genotype 16 (5.50%) resulted in the most frequently detected type in both single and multiple infections. HPV 33 (4.55%) and HPV 11 (3.80%) occupied the second and the third place in frequency among all detected genotypes. Conclusions: Viral genotypes different from HPV 16 and HPV 18 are frequently detected among Ecuadorian women. The overall prevalence of HPV resulted higher than the one reported in other South American countries with a greater burden in the second and third decades of life.

Human Papillomavirus (Hpv) Typing in Relation to ras Oncogene mRNA Expression in HPV-Associated Human Squamous Cervical Neoplasia

2005 ◽  
Vol 20 (4) ◽  
pp. 257-263 ◽  
Author(s):  
I.N. Mammas ◽  
A. Zafiropoulos ◽  
S. Sifakis ◽  
G. Sourvinos ◽  
D.A. Spandidos
Keyword(s):  
Cervical Cancer ◽  
Polymerase Chain Reaction ◽  
Human Papillomavirus ◽  
Hpv Infection ◽  
Cervical Neoplasia ◽  
Chain Reaction ◽  
Hpv 16 ◽  
Expression Levels ◽  
Hpv Typing ◽  
Polymerase Chain

Objective Human papillomavirus (HPV) has been identified as the principal etiologic agent for cervical cancer and its precursors. Different HPV types have been associated with different oncogenic potential. The purpose of this study was to evaluate the relationship between specific HPV type infection and expression pattern of the ras family oncogenes in different grades of HPV-associated human cervical neoplasia. Methods HPV typing was performed using polymerase chain reaction (PCR) in 31 HPV-positive human cervical specimens from patients with squamous intraepithelial lesions (SIL) or squamous cervical carcinoma (SCC). The mRNA expression levels of H-, K- and N-ras oncogenes were examined using the reverse transcriptase polymerase chain reaction (RT-PCR) technique. Statistical analyses were performed using SPSS software. Results Among patients with SCC, H-, K- and N-ras expression levels were higher in HPV 16/18-associated cases compared to HPV 16/18-unassociated samples (p=0.003, p=0.004 and p=0.0001, respectively). The expression levels for H-, K-and N-ras were significantly higher in SCC patients with multiple HPV infection compared with SCC patients with single HPV infection (p=0.009, p=0.01 and p=0.021, respectively). Among patients with SIL, no statistically significant relationship was found between ras expression and HPV status. Conclusion Our findings indicate the possible role of ras signaling interaction with “high-risk” HPV 16/18 and multiple HPV infection in cervical cancer development.

Australian women's needs and preferences for information about human papillomavirus in cervical screening

2005 ◽  
Vol 12 (3) ◽  
pp. 134-141 ◽  
Author(s):  
Kirsten McCaffery ◽  
Les Irwig
Keyword(s):  
Cervical Cancer ◽  
Human Papillomavirus ◽  
Information Needs ◽  
Pap Smear ◽  
Cervical Screening ◽  
Hpv Infection ◽  
Sexual Partners ◽  
Policy And Practice ◽  
Management Options ◽  
Multiple Sexual Partners

Objective: The role of human papillomavirus (HPV) in cervical cancer and developments in medical technology to prevent cervical cancer has changed information needs for women participating in cervical screening. Design: Qualitative face-to-face interviews were conducted with 19 women diagnosed with HPV infection on their Pap smear following routine cervical screening. Setting: Family planning clinics, general practice and specialist gynaecologist practices in Sydney and the surrounding area, Australia. Main outcome measures: Women's information needs, preferences and experiences of HPV diagnosis. Results: Women wanted further information on different HPV viral types, transmission, implications for sexual partners, prevalence, latency and regression of HPV, their management options and the implications of infection for cancer risk and fertility. Uncertainty about the key aspects of HPV, the style in which the clinician communicated the result and the mode of delivering the result (letter, telephone or consultation) influenced women's psychological response to the diagnosis of HPV. The delivery of results by letter alone was linked to considerable anxiety among the women interviewed. Women's experience of searching the Internet for further information about HPV was reported as difficult, anxiety provoking and contributing to the stigma of the infection because information was often located in the context of other sexually transmitted infections, with multiple sexual partners highlighted as a risk factor for infection. Conclusion: Women participating in cervical screening need high-quality information about HPV and its role in cervical cancer prior to screening rather than afterwards, when they face an abnormal result. The clinician potentially plays an important role in moderating the effects of diagnosis through the manner and mode in which an HPV diagnosis is delivered. Revision of cervical screening policy and practice in light of the changes in the understanding of HPV is recommended.

scholarly journals Papillomaviral infection: risk factors of cervical neoplastic progression

2004 ◽  
Vol 53 (3) ◽  
pp. 34-41
Author(s):  
Е. V. Shipitsyna ◽  
K. A. Babkina ◽  
Е. А. Orzheskovskaya ◽  
А. M. Savicheva
Keyword(s):  
Risk Factors ◽  
Cervical Cancer ◽  
Human Papillomavirus ◽  
P53 Gene ◽  
Hpv Infection ◽  
Neoplastic Progression ◽  
Protein Loss ◽  
Gene Encoding ◽  
Infection Risk Factors ◽  
Cell Genome

Human papillomavirus (HPV) plays the important role in the etiology of the cervical cancer. Considering that the cancer is very rare consequence of HPV-infection and even the high-grade lesions may spontaneously regress, search for the factors capable of predicting disease progression is of great significance. In the present review results of researches into risk factors of developing cervical cancer are summarized. Some virus-associated factors, such as infection with oncogenic types and variants of human papillomavirus, viral load, integration of viral DNA into cell genome, as well as host factors - polymorphism of p53 gene encoding a key apoptotic protein, loss of heterozygosity, tumor suppressor genes hypermethylation - are analyzed in terms of their prognostic value.

scholarly journals Human Papilloma Virus and Other Risk Factors of Carcinoma Cervix

1970 ◽  
Vol 38 (1) ◽  
pp. 18-23 ◽  
Author(s):  
S Khatun ◽  
Syed Md Akram Hussain ◽  
F Hossain ◽  
A Choudhury
Keyword(s):  
Risk Factors ◽  
Cervical Cancer ◽  
Cancer Screening ◽  
Human Papilloma Virus ◽  
Sexual Activity ◽  
Hpv Infection ◽  
Carcinoma Cervix ◽  
Papilloma Virus ◽  
Hpv Dna ◽  
Screening Strategies

Cervical cancer is the most common cancer among women in many developing countries constituting 20%-30% of female cancers. The etiological factors of cervical cancer include environmental, social, sexual and sexually transmitted agents including human papilloma virus (HPV). HPV has identified in 99.7% invasive cancer. Objective of the study was to find out the prevalence of HPV-DNA virus among diagnosed cases of preinvasive and invasive diseases and to find out different sociodemographic parameters related to carcinoma cervix. This was a cross sectional study. The study has conducted in the department of Obstetrics and Gynaecology of Bangabandhu Sheikh Mujib Medical University. Duration of study was from May 2005 to May 2006. Samples were collected from diagnosed cases of CIN I, II, III and CIS and invasive cancer. Thirty cases were recruited for collection of cervical scraping. Sample were collected of in a specially designed sampler containing liquid transport medium and preserved in minus 20 Degree Celsius and sent to the DNA laboratory for processing and identification of HPV by hybrid capture II method. The results were analyzed by using SPSS version 11.0 and shown in tables and diagrams. The risk factors for HPV infection identified from the result. These are early sexual activity, years of sexual activity, urban people, and higher number of pregnancies. The test could identify HPV-DNA in 100 % of invasive and 50 % of preinvasive cancer. In this study HPV infection was found as a strong determinant for the development of cervical carcinoma and its precursors. Poor socio-economic condition, lower level of education, early marriage and first delivery, multi-parity, years of sexual activity are the risk factors for developing HPV infection. New guidelines for cervical cancer screening strategies could be able to develop from the information obtained from this study. A population-based study with larger sample will be required for the evaluation of cervical cancer screening strategies. Key words: HPV, Carcinoma Cervix   DOI: 10.3329/bmj.v38i1.3582 Bangladesh Medical Journal 38(1) 2009 18-23

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