Prevalence and genotype distribution of HPV infection among 214,715 women from Southern China, 2012-2018: baseline measures prior to mass HPV vaccination

2020 ◽  
Author(s):  
Lipei Luo ◽  
Ping He ◽  
qiaotu liu ◽  
Yanghua jiang ◽  
Yang-nan Zhang ◽  
...  
Keyword(s):  
Young Women ◽  
Southern China ◽  
Cervical Screening ◽  
Hpv Vaccination ◽  
Hpv Infection ◽  
Cross Sectional Study ◽  
Genotype Distribution ◽  
Cross Sectional ◽  
Hpv Prevalence ◽  
Hpv Genotypes

Abstract Background: The epidemiology on the human papillomavirus (HPV) among females in Southern China is not well-established. Baseline data on the prevalence of HPV infection in China prior to mass prophylactic HPV vaccination would be useful. Thus, this study aimed to determine the type-specific HPV prevalence and distribution among females from Southern China prior to mass HPV vaccination. Methods: A retrospective cross-sectional study employing 214,715 women attending ChenZhou NO.1 People’s Hospital for cervical screening during 2012-2018 was conducted prior to widespread HPV vaccination. HPV genotype was detected using nucleic acid molecular diversion hybridization tests. The overall prevalence, age-specific prevalence, type distribution, and annual trend were analyzed. Results: The overall HPV prevalence was 18.71% (95% confidence interval [CI], 18.55%-18.88%) among Southern China females. During 2012–2018, the prevalence of HPV infection showed a downward tendency, from 21.63% (95% CI, 21.07%-22.20%) in 2012 to 18.75% (95% CI, 18.35%-19.16%) in 2018. Age-specific HPV distribution displayed a peak at young women aged less than 21 years (33.11%, 95% CI, 31.13%-35.15%), 20.07% (95% CI, 19.70%-20.44%) among women aged 21-30 years, 17.29% (95% CI, 17.01%-17.57%) among women aged 31-40 years, 17.23% (95% CI, 16.95%-17.51%) among women aged 41-50 years, 21.65% (95% CI, 21.11%-22.20%) among women aged 51-60 years, and 25.95% (95% CI, 24.86%-27.07%) among women aged over 60 years. Of the 21 subtypes identified, the most three prevalent high-risk HPV (HR-HPV) genotypes were HPV52 (5.12%; 95% CI, 21.11%-22.20%), -16 (2.96%; 95% CI, 2.89%-3.03%), and -58 (2.51%; 95% CI, 2.44%-2.58%); the predominant low-risk HPV (LR-HPV) genotypes were HPV81 (1.86%; 95%CI, 1.80%-1.92%) and -6 (0.69%; 95% CI, 0.66%-0.73%) respectively. Incidence of HR-HPV only, LR-HPV only and mixed LR- and HR-HPV were 15.17%, 2.07% and 1.47% respectively. Besides, single HPV infection accounted for 77.30% of all positive cases in this study.Conclusions: This study highlights 1) a high prevalence of HPV infection among females with a decreasing tendency towards 2012-2018, especially for young women under the age of 21 prior to mass HPV vaccination; 2) HPV52, -16 and -58 were the predominant HPV genotypes, suggesting potential use of HPV vaccine covering these HPV genotypes in Southern China.

scholarly journals Prevalence and genotype distribution of HPV infection among 214,715 women from Southern China, 2012–2018: baseline measures prior to mass HPV vaccination

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Li-pei Luo ◽  
Ping He ◽  
Qiao-tu Liu ◽  
Yang-hua Jiang ◽  
Yang-nan Zhang ◽  
...  
Keyword(s):  
Young Women ◽  
Southern China ◽  
Cervical Screening ◽  
Hpv Vaccination ◽  
Hpv Infection ◽  
Cross Sectional Study ◽  
Genotype Distribution ◽  
Cross Sectional ◽  
Hpv Prevalence ◽  
Hpv Genotypes

Abstract Background The epidemiology on the human papillomavirus (HPV) among females in Southern China is not well-established. Baseline data on the prevalence of HPV infection in China prior to mass prophylactic HPV vaccination would be useful. Thus, this study aims to determine the type-specific HPV prevalence and distribution among females from Southern China prior to mass HPV vaccination. Methods A retrospective cross-sectional study employing 214,715 women attending ChenZhou NO.1 People’s Hospital for cervical screening during 2012–2018 was conducted prior to widespread HPV vaccination. HPV genotype was detected using nucleic acid molecular diversion hybridization tests. The overall prevalence, age-specific prevalence, type distribution, and annual trend were analyzed. Results The overall HPV prevalence was 18.71% (95% confidence interval [CI], 18.55–18.88%) among Southern China females. During 2012–2018, the prevalence of HPV infection showed a downward tendency, from 21.63% (95% CI, 21.07–22.20%) in 2012 to 18.75% (95% CI, 18.35–19.16%) in 2018. Age-specific HPV distribution displayed a peak at young women aged less than 21 years (33.11, 95% CI, 31.13–35.15%), 20.07% (95% CI, 19.70–20.44%) among women aged 21–30 years, 17.29% (95% CI, 17.01–17.57%) among women aged 31–40 years, 17.23% (95% CI, 16.95–17.51%) among women aged 41–50 years, 21.65% (95% CI, 21.11–22.20%) among women aged 51–60 years, and 25.95% (95% CI, 24.86–27.07%) among women aged over 60 years. Of the 21 subtypes identified, the top three prevalent high-risk HPV (HR-HPV) genotypes were HPV52 (5.12%; 95% CI, 21.11–22.20%), − 16 (2.96%; 95% CI, 2.89–3.03%), and − 58 (2.51%; 95% CI, 2.44–2.58%); the predominant low-risk HPV (LR-HPV) genotypes were HPV81 (1.86%; 95%CI, 1.80–1.92%) and − 6 (0.69%; 95% CI, 0.66–0.73%) respectively. Incidence of HR-HPV only, LR-HPV only and mixed LR- and HR-HPV were 15.17, 2.07 and 1.47% respectively. Besides, single HPV infection accounted for 77.30% of all positive cases in this study. Conclusions This study highlights 1) a high prevalence of HPV infection among females with a decreasing tendency towards 2012–2018, especially for young women under the age of 21 prior to mass HPV vaccination; 2) HPV52, − 16 and − 58 were the predominant HPV genotypes, suggesting potential use of HPV vaccine covering these HPV genotypes in Southern China.

scholarly journals Prevalence and genotype distribution of HPV infection among 214,715 women from Southern China, 2012-2018: baseline surveys prior to mass HPV vaccination

2020 ◽  
Author(s):  
Lipei Luo ◽  
Ping He ◽  
Qiaotu Liu ◽  
Yanghua Jiang ◽  
Yang-nan Zhang ◽  
...  
Keyword(s):  
Young Women ◽  
Southern China ◽  
Cervical Screening ◽  
Hpv Vaccination ◽  
Hpv Infection ◽  
Cross Sectional Study ◽  
Genotype Distribution ◽  
Cross Sectional ◽  
Hpv Prevalence ◽  
Hpv Genotypes

Abstract Background : The epidemiology on the human papillomavirus (HPV) among females in Southern China is not well-established. Baseline data on the prevalence of HPV infection in China prior to mass prophylactic HPV vaccination would be useful. Thus, this study aimed to determine the type-specific HPV prevalence and distribution among females from Southern China prior to mass HPV vaccination.Methods : A retrospective cross-sectional study employing 214,715 women attending ChenZhou NO.1 People’s Hospital for cervical screening during 2012-2018 was conducted prior to widespread HPV vaccination. HPV genotype was detected using nucleic acid molecular diversion hybridization tests. The overall prevalence, age-specific prevalence, type distribution，and annual trend was analyzed.Results : The overall HPV prevalence was 18.71% (95% confidence interval [CI], 18.55%-18.88%) among Southern China females. During 2012–2018, the prevalence of HPV infection showed a downward tendency, from 21.63% (95% CI, 21.07%-22.20%) in 2012 to 18.75% (95% CI, 18.35%-19.16%) in 2018. Age-specific HPV distribution displayed a peak at young women aged less than 21 years (33.11%, 95% CI, 31.13%-35.15%), 20.07% ( 95% CI, 19.70%-20.44% ) among women aged 21-30 years, 17.29% (95% CI, 17.01%-17.57%) among women aged 31-40 years, 17.23% (95% CI, 16.95%-17.51%) among women aged 41-50 years, 21.65% (95% CI, 21.11%-22.20%) among women aged 51-60 years, and 25.95% (95% CI, 24.86%-27.07%) among women aged over 60 years. Of the 21 subtypes identified, the most three prevalent high-risk HPV (HR-HPV) genotypes were HPV52 (5.12%; 95% CI, 21.11%-22.20%), -16 (2.96%; 95% CI, 2.89%-3.03%), and -58 (2.51%; 95% CI, 2.44%-2.58%); the predominant low-risk HPV (LR-HPV) genotypes were HPV81 (1.86%; 95%CI, 1.80%-1.92%) and -6 (0.69%; 95% CI, 0.66%-0.73%) respectively. Incidence of HR-HPV only, LR-HPV only and mixed LR- and HR-HPV were 15.17%, 2.07% and 1.47% respectively. Besides, single HPV infection accounted for 77.30% of all positive cases in this study.Conclusions: This study highlights 1) a high prevalence of HPV infection among females with a decreasing tendency towards 2012-2018, especially for young women under the age of 21 prior to mass HPV vaccination; 2) HPV52, -16 and -58 were the predominant HPV genotypes, suggesting potential use of HPV vaccine covering these HPV genotypes in Southern China.

scholarly journals Knowledge and Attitudes Regarding HPV and Vaccination Among Chinese Women Aged 20 to 35 Years in Fujian Province

2018 ◽  
Vol 25 (1) ◽  
pp. 107327481877535 ◽  
Author(s):  
Lihua Chen ◽  
Yiyi Song ◽  
Guanyu Ruan ◽  
Qiaoyu Zhang ◽  
Fen Lin ◽  
...  
Keyword(s):  
Young Women ◽  
Hpv Vaccine ◽  
Chinese Women ◽  
Hpv Vaccination ◽  
Hpv Infection ◽  
Cross Sectional Study ◽  
Detailed Knowledge ◽  
Fujian Province ◽  
Cross Sectional ◽  
Knowledge And Attitudes

The use of the human papillomavirus (HPV) vaccine was recently approved in Mainland China. This study determined the knowledge and attitudes of young women aged 20 to 35 years in Fujian Province, China, with regard to HPV and vaccination and explored the potential factors influencing their attitudes toward HPV vaccination. This was a cross-sectional study that collected data regarding the knowledge on and attitudes toward HPV and vaccination using questionnaires. Furthermore, the prevalence of HPV was determined from the sampled participants. A total of 1001 young women were included in the survey. This study demonstrated that the HPV prevalence rate was 15.7% (157/1001). Among all patients, 44.9% (n = 449) had heard of HPV; however, detailed knowledge about HPV was lacking. The majority (83.7%) expressed a willingness to be vaccinated. Specifically, knowledge of the dangers of HPV infection was significantly associated with the willingness to be vaccinated. In this study, women cited some concerns and expressed high expectations for the HPV vaccine, but the costs of vaccination reduced their willingness to be vaccinated. This study found that most patients did not have a detailed knowledge of HPV. Thus, there is a need for continued HPV promotion and education efforts, especially on the dangers of HPV infection, among young women aged 20 to 35 years in Fujian Province, China. Furthermore, it is important to subsidize the costs of vaccination for promoting vaccination campaigns in China.

scholarly journals Genotypic distribution of human oncogenic papillomaviruses in sexually active women in Burkina Faso: Central, Central-Eastern and Hauts-Bassins regions

2020 ◽  
Vol 11 (1) ◽  
pp. 125-136
Author(s):  
Rogomenoma Alice Ouedraogo ◽  
Théodora Mahoukèdè Zohoncon ◽  
Ina Marie Angèle Traore ◽  
Abdoul Karim Ouattara ◽  
Sindimalgdé Patricia Guigma ◽  
...  
Keyword(s):  
Burkina Faso ◽  
Large Scale ◽  
Hpv Infection ◽  
Cross Sectional Study ◽  
Sexually Active ◽  
Cervical Lesions ◽  
Cross Sectional ◽  
Genotypic Distribution ◽  
Hpv Genotypes ◽  
Central Eastern

AbstractObjectivethis study was conducted to determine the distribution of high-risk human papillomavirus (HR-HPV) genotypes in women in the general population of three regions of Burkina Faso.MethodThis multicenter, descriptive cross-sectional study involved 1321 sexually active women in five cities in three regions of Burkina Faso: Central, Central-Eastern and Hauts-Bassins regions. After collection of endocervical specimens, pre-cervical lesions were screened by visual inspection with acetic acid and lugol (VIA / VILI). HR-HPV genotypes were characterized by multiplex real-time PCR after extraction of viral DNA.ResultsThe mean age of women was 31.98 ± 10.09 years. The HR-HPV infection in the three regions ranged from 26.16% to 43.26% with 35.42% as overall prevalence in women. The most common HR-HPV genotypes in descending order were: HPV 56, 52, 66, 59, 39, 51, 18, 35. The prevalence of bivalent vaccine genotypes (HPV16 / 18) was 7.83% against 63.78% of genotypes not covered by HPV vaccine; 36.32% (170/468) of women had multiple concomitant HR-HPV infections.Conclusionthis study showed significant regional variation and high prevalence of HR-HPV infection in women. The predominant genotypes differ from those covered by available vaccines in Burkina Faso. These results will help guide our health policies towards better prevention of cervical cancer. The diversity of oncogenic genotypes is sparking a large-scale study in the West African sub-region, particularly in cases of cancer and the introduction of the nonavalent vaccine which includes HPV 52 found among the predominant genotypes in this study.

scholarly journals Human papillomavirus vaccination coverage among working women

2021 ◽  
Vol 6 (4) ◽  
pp. 714-722
Author(s):  
Sajeda Khatun ◽  
Ashees Kumar Saha ◽  
Irtiza Ahmed Chowdhury ◽  
Arifa Sultana ◽  
Mst Wazeda Begum ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Human Papillomavirus ◽  
Vaccination Coverage ◽  
Hpv Vaccination ◽  
Working Women ◽  
Hpv Infection ◽  
Cross Sectional Study ◽  
P Value ◽  
Human Papillomavirus Vaccination ◽  
Cross Sectional

Human papillomavirus (HPV) infection is one of the causes of cervical cancer which is preventable. The study was a cross-sectional study with the objective was to determine the Human papillomavirus (HPV) vaccination coverage among working women. A total 236 educated working women were selected purposively from different working places in Dhaka city. A pretested semi- structured questionnaire was used for data collection. The knowledge was assessed by using modified Blooms cut off points which was developed with cervical cancer and vaccine knowledge related questions. The study result revealed that among 236 working women 71.2% knew about the risk factor of cervical cancer. It was found that 92.8% knew about the way of prevention of cervical cancer respectively. The overall knowledge on cervical cancer and vaccine was found to be having good knowledge 21.2%, satisfactory knowledge 41.9% and poor knowledge 36.9%. Out of the total working women only 5.1% had HPV vaccination coverage. Reason behind non vaccinations, 50% mentioned had no knowledge about vaccine, 35.3% mentioned can’t decide and 8.9% mentioned high cost of vaccine. Significant association has been observed in between vaccination coverage with over all knowledge of cervical cancer (p value .04). It may be concluded that HPV vaccination coverage is very low which needs awareness program on this issues through mass media, educational session, counseling and so on to reduce human papillomavirus associated cancers as well as economic burden. Asian J. Med. Biol. Res. December 2020, 6(4): 714-722

Prevalence and genotype distribution of human papillomavirus infection in Huzhou City, eastern China, 2018–2019

2020 ◽  
Author(s):  
Yurong Zhu ◽  
Fuchu Qian ◽  
Weihua Zou ◽  
Xiaoyun Wu ◽  
Chunlin Liu ◽  
...  
Keyword(s):  
Human Papillomavirus ◽  
Infection Rate ◽  
Vaccine Development ◽  
Eastern China ◽  
Hpv Infection ◽  
Cross Sectional Study ◽  
Genotype Distribution ◽  
Care Hospital ◽  
Abnormal Cytology ◽  
Cross Sectional

Abstract Background Human papillomavirus (HPV) infection is involved in cervical cancer development, and hence understanding its prevalence and genotype distribution is important. However, there are few reports on the prevalence and genotype distribution of HPV in the city of Huzhou in China. Methods In this retrospective cross-sectional study, 11,506 women who visited Huzhou Maternity & Child Health Care Hospital between January 2018 and October 2019 were enrolled. The results of HPV genotyping and cytology tests were analyzed. Results The overall prevalence of HPV infection was 15.5%. The rate of high-risk (HR) HPV infection (13.5%) was higher than that of single low-risk (LR) HPV infection (2.0%) (p<0.05). The five most common HPV genotypes were HPV52 (3.3%), 16 (1.9%), 58 (1.7%), 53 (1.5%), and 81 (1.2%). The infection rate of HPV peaked in women aged 16–24 and women aged ≥55. The infection rate of HPV58 or HPV81 appeared as a single peak in women aged ≥55. The rates of HR-HPV and LR-HPV infection were higher in subjects with abnormal cytology (p<0.05). Conclusions HPV infection is high in Huzhou, and HPV53 and HPV81 are the prevalent genotypes. HPV infection rate is associated with age and cytology. Regional HPV surveillance is essential to optimize current HPV prevention and vaccine development.

scholarly journals HPV Infection in a Cohort of HIV-Positive Men and Women: Prevalence of Oncogenic Genotypes and Predictors of Mucosal Damage at Genital and Oral Sites

2013 ◽  
Vol 2013 ◽  
pp. 1-8
Author(s):  
Giulia Marchetti ◽  
Laura Comi ◽  
Teresa Bini ◽  
Marco Rovati ◽  
Francesca Bai ◽  
...  
Keyword(s):  
Mucosal Damage ◽  
Hpv Infection ◽  
Cross Sectional Study ◽  
Hiv Positive ◽  
Low Grade ◽  
Abnormal Cytology ◽  
Cross Sectional ◽  
Squamous Cells ◽  
Hpv Prevalence ◽  
Oral Hpv

The aim of this study was to assess the prevalence of HPV infection and determinants of abnormal cytology in HIV-positive patients. In a cross-sectional study, patients of both sexes, asymptomatic for HPV, underwent anorectal (men)/cervical (women) and oral swabs. Cytology and HPV-PCR detection/genotyping (high- and low-risk genotypes, HR-LR/HPV) were performed. A total of 20% of the 277 enrolled patients showed oral HPV, with no atypical cytology; in men, anal HPV prevalence was 81% with 64% HR genotypes. In women, cervical HPV prevalence was 58% with 37% HR-HPV. The most frequent genotypes were HPV-16 and HPV-18; 37% of men and 20% of women harbored multiple genotypes. Also, 47% of men showed anal squamous intraepithelial lesions (SILs); 6% had high- and 35% low-grade SILs (HSILs/LSILs); 5% had atypical squamous cells of undetermined significance (ASC-US). HR-HPV was independently associated with anal-SIL in men (P=0.039). Moreover, 37% of women showed cervical SIL: 14 ASC-US, 15 LSILs, 4 HSILs, and 1 in situ cancer. The presence of both LR and HR-HPV in women was independently associated with SIL (P=0.003 and P=0.0001). HR-HPV and atypical cytology were frequently identified in our cohort. HPV screening should be mandatory in HIV-infected subjects, and vaccine programs for HPV-negative patients should be implemented.

scholarly journals Human papillomavirus genotype distribution in cervical intraepithelial neoplasia 2/3 and invasive cervical cancer among Hakka women in southern China

2019 ◽  
Author(s):  
Xiaodong Gu ◽  
Ruiqiang Weng ◽  
Jing Liu ◽  
Sudong Liu
Keyword(s):  
Cervical Cancer ◽  
Cervical Intraepithelial Neoplasia ◽  
Southern China ◽  
Invasive Cervical Cancer ◽  
Intraepithelial Neoplasia ◽  
Hpv Infection ◽  
Histological Diagnosis ◽  
Infection Prevalence ◽  
Genotype Distribution ◽  
Hpv Genotypes

Abstract Background: To investigate HPV genotype distribution in cervical intraepithelial neoplasia 2/3 (CIN2/3) and invasive cervical cancer (ICC) among Hakka women in southern China. Methods: Results of HPV genotypes from women with histological diagnosis of CIN2/3 and ICC were collected from January, 2017 to December, 2018. HPV genotypes were analyzed by flow cytometry method. Association of HPV infection and lesions severity was estimated using prevalence ratio (PR). Results: Overall, 1,408 Hakka women with histological diagnosis of CIN2/3 and ICC were enrolled in this study. HPV infection prevalence was 92.92% in CIN2, 95.77% in CIN3 and 95.88% in ICC. Most frequent genotypes for CIN2 were HPV52 (31.42%), HPV16 (22.12%) and HPV58 (22.12%); for CIN3 were HPV16 (41.90%), HPV52 (20.77%) and HPV58 (18.31%); and for ICC were HPV16 (49.67%), HPV18 (11.25%) and HPV52 (9.80%). PR of HPV16 and HPV33 were significantly higher in CIN3 compared with CIN2 (PR = 2.372, 95%CI = 1.598-3.524; PR = 2.577, 95%CI = 1.250-5.310; respectively). HPV16 and HPV18 prevalence were significantly increasing in SCC compared with CIN3 (PR = 2.517, 95%CI = 1.095-5.786; PR = 2.473, 95%CI = 1.840-3.324; respectively). Most HPV infections were found in women aged 40 – 49 years in CIN2/3 and women aged 50 - 59 years in ICC. Conclusions: This is the first study of genotypes and age specific distribution of HPV infection among Hakka women with CIN2/3 and ICC in southern China. Our results provide available information for HPV vaccine development in China.

scholarly journals Human Papilloma Virus Transmission: Knowledge and Uptake of HPV Vaccine among In-school Adolescent Girls in South-South Nigeria

2020 ◽  
pp. 25-37
Author(s):  
I. N. Ojule ◽  
I. E. Anika
Keyword(s):  
Adolescent Girls ◽  
Hpv Vaccine ◽  
Hpv Vaccination ◽  
Virus Transmission ◽  
Hpv Infection ◽  
Cross Sectional Study ◽  
Hpv Vaccines ◽  
Cross Sectional ◽  
Multi Stage ◽  
Rivers State

Background: HPV infection is the most common STI in sexually active adolescents. It has been implicated in majority of cases of cervical cancers. HPV is preventable. Potent Vaccines are available. Objective: This study assessed what adolescents know about HPV infection and HPV vaccination, their attitude and uptake of HPV vaccine. This was also to raise awareness and obtain data that will be useful in identifying where to intervene to improve coverage. Materials and Methods: A descriptive cross-sectional study carried out in Rivers State, Nigeria. Study tool was a semi-structured, self-administered questionnaire. Multi-stage sampling method was used to recruit adolescent girls from secondary schools. Results: 445 in-school adolescent girls aged 9 to 19 years participated. Mean age was 13.4 SD = ±2.2 years. 36.6% and 36.8% had heard of HPV infection and HPV vaccine respectively. Only 3.1% of the participants knew HPV could be prevented through vaccination. 71.7% indicated willingness to obtain the vaccine. Only 3.6% self reported to have received at least one dose of the vaccine at the time of the survey. Uptake of HPV vaccine (P=0.00), willingness to be vaccinated (P=0.005) highest among adolescents that had heard of HPV vaccine and those who perceived themselves to be at risk for HPV infection (P=0.005). Insufficient health information, cost of HPV vaccines identified as key barriers to vaccines utilization. Conclusion: Notwithstanding the low level of knowledge about HPV infection and HPV vaccines willingness to be vaccinated was high. Our study shows that uptake of vaccination is low in our locality.

YouTube™ videos related to human papillomavirus: the need for professional communication

2016 ◽  
Vol 30 (1) ◽  
Author(s):  
Corey H. Basch ◽  
Grace Clarke Hillyer ◽  
Alyssa Berdnik ◽  
Charles E. Basch
Keyword(s):  
Human Papillomavirus ◽  
Public Awareness ◽  
Hpv Vaccination ◽  
Hpv Infection ◽  
Cross Sectional Study ◽  
General Information ◽  
Professional Communication ◽  
Cross Sectional ◽  
Search Terms ◽  
Health Related

Abstract YouTube™ is a frequently visited website that contains a large and diverse collection of health-related videos. The aim of this study was to identify the most popular videos on YouTube™.com related to human papillomavirus (HPV) and describe their content. This cross-sectional study involved using the search terms “HPV” and “human papillomavirus” to determine a purposive sample composed of an equal number of the most popular “professional” (n=35) and “consumer” (n=35) videos identified. Video content was analyzed and those videos related to HPV vaccination in any way were analyzed further to denote the nature of the message. The majority of videos (81.4%) provided general information related to HPV, discussed the association of HPV infection and the development of cancer (81.4%), and addressed HPV screening (64.3%). Just under one-half (n=34) of the videos addressed vaccination. Fifteen of these were neutral, while six were encouraging and 13 were discouraging. The videos included in this study were viewed ~17 million times, which indicates their potential for influencing public awareness and opinions. Of the videos devoted to HPV vaccination, few were encouraging. These videos may impede efforts to increase rates of HPV vaccination, which are already far below target levels.

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