Acceptabilité de la vaccination contre les papillomavirus humains (HPV) par les pédiatres,les mères et les jeunes femmes à Hô Chi Minh Ville,Vietnam

BackgroundCervical cancer (CC) is almost always induced by some oncogenic types of human papillomavirus (HPV). In Vietnam, it is the first leading cause of cancer in women, with highest prevalence in Ho Chi Minh City (HCMC). Since 2006, prevention of the CC has been improved by licensure of recombinant vaccines directed against HPV 16 and 18, effective when administered before the age of first sexual intercourse. A national program for routine immunization of pre-adolescent girls in addition to cytological screening of adult women would greatly reduce the impact of CC in Vietnam but vaccines remain expensive and it is unclear how this strategy would be accepted by the target population. The aim of this study was to assess the acceptability of HPV vaccination by pediatricians, mothers with a daughter aged 9–15 years and young women aged 16–26 years in HCMC.MethodsBetween March and June 2010, a cross-sectional survey of knowledge and attitudes was administered to 115 pediatricians in the pediatric hospital, 210 mothers and 400 young women attending the gynecology department of the University Hospital.ResultsPediatricians generally had a good perception of the risk but they still lacked knowledge about HPV vaccination, given by 66% of them. Among mothers, 18% knew the relationship between HPV infection and CC, 43% had heard of HPV vaccination and 40% agreed to vaccinate their daughter. Among young women, 35% knew the risk, 49% knew the vaccine and 38% wanted to be vaccinated. Level of education, amount of income and celibacy were positively related to intention to be vaccinated. The lack of information on HPV vaccination and the high cost of vaccines were the main causes of refusal or indecision.ConclusionRoutine HPV vaccination of girls in HCMC will be well accepted by the population if a large campaign of health education is implemented by the government and if the affordability of vaccines is facilitated.     

Mother–Daughter Communication About HPV Vaccine

PurposeParent–child conversations about human papillomavirus (HPV) vaccine may provide parents with the opportunity to talk with their daughters about sexual health. We sought to characterize mothers' communication with their adolescent daughters about HPV vaccine.MethodsWe surveyed 609 mothers of girls aged between 11 and 20 years living in North Carolina in Fall 2008. We used logistic regression to identify the correlates of mother–daughter communication.ResultsMost mothers (81%) reported having discussed HPV vaccine with their daughters. For almost half of these families (47%), discussion of HPV vaccine led to a conversation about sex. This was more common among mothers who believed that their daughters may be sexually active (odds ratio [OR]: 1.88; 95% confidence interval [CI]: 1.25–2.83), had greater knowledge of HPV vaccine (OR: 2.46; 95% CI: 1.07–5.64), lived in urban areas (OR: 1.75; 95% CI: 1.21–2.54), or reported being born-again Christians (OR: 1.74; 95% CI: 1.17–2.58). Most mothers who talked with their daughters about HPV vaccine reported having discussed the reasons for and against getting vaccinated (86%). Mothers most commonly reported having discussed the potential HPV vaccine benefits, usually protection against cervical cancer (56%), and less frequently reported having discussed the perceived disadvantages of HPV vaccine.ConclusionsHPV vaccine conversations may provide opportunities for sexual health promotion and sexually transmitted infection (STI) prevention.     

Decision-making about HPV vaccination in parents of boys and girls: A population-based survey in England and Wales

BackgroundSchool-based HPV vaccination in the UK will soon be extended to boys. Based on other countries’ experience, uptake may initially be lower in boys than girls. We assessed HPV vaccine attitudes and decision-making in parents of boys and girls, to explore sex differences and inform public health messages.MethodsWe carried out a cross-sectional population-based survey using home-based interviews in spring 2019. Participants were adults in England and Wales, with a child in school years 5–7 (aged 9–12 and eligible for HPV vaccination within 3 years). Measures included awareness of HPV and the vaccine, demographic factors, previous vaccine refusal and (after exposure to brief information) whether participants would allow their child to have the HPV vaccine (decided to vaccinate; decided not to vaccinate; undecided). We also assessed vaccine attitudes. Data were weighted to adjust for non-response. Multinomial logistic regression was used to explore predictors of deciding to (or not to) vaccinate compared with being undecided.ResultsAmong 1049 parents (weighted n = 1156), 55% were aware of HPV and the girls’ vaccination programme, but only 23% had heard of plans to vaccinate boys. After information exposure, 62% said they would vaccinate their child, 10% would not, and 28% were undecided. Parents of girls were more willing to vaccinate than parents of boys (adjusted odds ratio: 1.80 (1.32–2.45)). Positive attitudes and HPV/vaccine awareness were significantly independently associated with deciding to vaccinate. Previous vaccine refusal for a child was the strongest predictor of not wanting the HPV vaccine.ConclusionsOur findings suggest a need for public health campaigns to raise awareness of plans to extend HPV vaccination to boys. Reassuringly only 10% of all parents were unwilling to vaccinate and our data suggest further information, including about safety and efficacy, may be important in supporting undecided parents to make the decision to vaccinate.     

HPV vaccination coverage of teen girls: The influence of health care providers

BackgroundBetween 2010 and 2014, the percentage of 13–17 year-old girls administered ≥3 doses of the human papilloma virus (HPV) vaccine (“fully vaccinated”) increased by 7.7 percentage points to 39.7%, and the percentage not administered any doses of the HPV vaccine (“not immunized”) decreased by 11.3 percentage points to 40.0%.ObjectiveTo evaluate the complex interactions between parents’ vaccine-related beliefs, demographic factors, and HPV immunization status.MethodsVaccine-related parental beliefs and sociodemographic data collected by the 2010 National Immunization Survey-Teen among teen girls (n = 8490) were analyzed. HPV vaccination status was determined from teens’ health care provider (HCP) records.ResultsAmong teen girls either unvaccinated or fully vaccinated against HPV, teen girls whose parent was positively influenced to vaccinate their teen daughter against HPV were 48.2 percentage points more likely to be fully vaccinated. Parents who reported being positively influenced to vaccinate against HPV were 28.9 percentage points more likely to report that their daughter's HCP talked about the HPV vaccine, 27.2 percentage points more likely to report that their daughter's HCP gave enough time to discuss the HPV shot, and 43.4 percentage points more likely to report that their daughter's HCP recommended the HPV vaccine (p < 0.05). Among teen girls administered 1–2 doses of the HPV vaccine, 87.0% had missed opportunities for HPV vaccine administration.ConclusionResults suggest that an important pathway to achieving higher ≥3 dose HPV vaccine coverage is by increasing HPV vaccination series initiation though HCP talking to parents about the HPV vaccine, giving parents time to discuss the vaccine, and by making a strong recommendation for the HPV. Also, HPV vaccination series completion rates may be increased by eliminating missed opportunities to vaccinate against HPV and scheduling additional follow-up visits to administer missing HPV vaccine doses.     

Acceptance of and attitudes towards human papillomavirus vaccination in Japanese mothers of adolescent girls

To better understand how to achieve high uptake rates of human papillomavirus (HPV) vaccination in Japan, we investigated acceptance of and attitudes towards HPV vaccination in 2192 mothers of girls aged 11-14yrs. A school-based survey was conducted in five elementary and fourteen junior high schools in Sapporo, Japan. Responses from 862 participants were analyzed. Ninety-three percent of mothers would accept the vaccine for their daughter if free, but only 1.5% was willing to pay the minimum recommended price of ￥40,000. Vaccine acceptance was higher in mothers who had heard of HPV vaccine (adjusted odds ratio, aOR=2.58, confidence interval, CI=1.47-4.53), and who believed susceptibility to (aOR=2.30, CI=1.34-3.92) and severity of (aOR=3.73, CI=1.41-9.88) HPV to be high. Recommendations from a doctor (aOR=12.60, CI=7.06-21.48) and local health board (aOR=27.80, CI=13.88-55.86) were also positively associated with increased HPV vaccine acceptance. Concerns about side effects of both the HPV vaccine (aOR=0.03, CI=0.01-0.08) and routine childhood vaccines in general (aOR=0.11, CI=0.02-0.78) emerged as barriers to vaccination. Not participating in routine cervical screening also emerged as a deterrent (aOR=0.49, CI=0.27-0.91). While most mothers (66.8%) agreed that 10-14yr was an appropriate age for vaccination, a further 30.6% believed >15yr to be more appropriate. In conclusion, attitudes of Japanese mothers toward HPV vaccination are encouraging. While lower vaccine acceptance in mothers who do not undergo regular cervical screening needs further investigation, this study indicates that high uptake may be possible in a publically funded HPV vaccination program if physicians actively address safety concerns and justify why the vaccine is needed at a particular age.     

Parental attitudes to pre-pubertal HPV vaccination

OBJECTIVES: To determine the acceptability of childhood HPV vaccination and examine demographic, cultural, and psychosocial predictors of vaccine acceptance. DESIGN: School-based survey. PARTICIPANTS: Questionnaires sent to 1205 mothers of 8-14-year-old girls. Responses from 684 were included in the analyses. SETTING: Ten schools (seven primary, three secondary) in four areas of England. RESULTS: Seventy-five percent of mothers would accept the vaccine for their daughter. Vaccine acceptance was higher in mothers who had experience of cancer in the family (OR=1.61, CI: 1.14-2.29), had older daughters (OR=1.15, CI: 1.04-1.27), perceived approval from husband/partner (OR=14.51, CI: 6.15-34.25) and believed vaccine acceptance would be more normative (OR=1.78, CI: 1.59-2.01). Having concerns about too many vaccinations (OR=0.22, CI: 0.15-0.31) or vaccine side effects (OR=0.37, CI: 0.28-0.50) and worry about increasing promiscuity (OR=0.47, CI: 0.36-0.62) emerged as deterrents. The modal preferred age was 12 years. Endorsing vaccination at earlier ages was predicted by feeling able to discuss related topics, including sex, at younger ages (OR=1.37, CI: 1.24-1.51) and concern about increasing promiscuity (OR=0.61, CI: 0.47-0.78). CONCLUSIONS: Overall, there was a favourable response to HPV vaccination. Emphasising the widespread acceptance of the vaccine might promote acceptance further, as would information on immunological and social benefits of earlier vaccination.     

Uptake of HPV vaccine: demographics, sexual history and values, parenting style, and vaccine attitudes

PURPOSE: To examine the relationships of demographics, parenting, and vaccine attitudes with the acceptance of the human papillomavirus (HPV) vaccine or to the intent to vaccinate in the next 12 months. METHODS: Mothers (n = 153) with daughters ages 11 to 17 years were recruited through the pediatric clinic waiting room/announcements to complete a questionnaire. RESULTS: Eighteen percent of the daughters had not received the vaccine, although it had been offered; 34% had not been offered the vaccine and did not intend to get it in the next 12 months; 22% had not been offered the vaccine but intended to get it in the next 12 months; 26% had started vaccination or completed the series. In a multinomial, multivariable logistic regression model, those mothers who had less than a high school degree, had a history of a sexually transmitted infection, supervised their daughter more when she was with peers, and whose daughter would not mind three shots were more likely to be favorable about their daughter being vaccinated. The following variables were not related to their attitudes about getting the vaccine: mothers' and daughters' ages, race/ethnicity, mothers' self-reported history of HPV disease and age of sexual initiation, daughters' dating status and anticipated age of sexual initiation, the number of sexual topics discussed and level of comfort, mother's sexual values, and the family environment. CONCLUSIONS: Mothers' decisions about the HPV vaccine were not related to their sexual values or their daughters' sexual behavior, but rather their parenting, sense of vulnerability, and vaccine attitudes. Mothers who were not planning to vaccinate did not appear to not feel an urgency given the newness of the vaccine, and many planned to vaccinate eventually.     

Risk perceptions,sexual attitudes,and sexual behavior after HPV vaccination in 11–12 year-old girls

ObjectivesAmong 11–12 year-old girls who received the human papillomavirus (HPV) vaccine, we explored, over the subsequent 30 months: (1) trajectories of knowledge about HPV/HPV vaccines and vaccine-related risk perceptions; (2) whether knowledge and risk perceptions impacted sexual attitudes and sexual experience; (3) whether mothers, clinicians, and media influenced girls’ risk perceptions, attitudes, and behavior.MethodsGirls and mothers (n = 25 dyads) completed separate, semi-structured interviews within 2 days of, and 6, 18, and 30 months after, their first HPV vaccine dose. Knowledge, risk perceptions related to HPV and other sexually transmitted infections (STIs), and attitudes about sexual behaviors were assessed. Sexual experience was assessed at girls’ 30 month interviews. Clinicians completed interviews at baseline. Transcribed interviews were analyzed using framework analysis.ResultsGirls’ baseline knowledge was poor but often improved with time. Most girls (n = 18) developed accurate risk perceptions about HPV but only half (n = 12) developed accurate risk perceptions about other STIs by 30 months. The vast majority of girls thought that safer sex was still important, regardless of knowledge, risk perceptions, or sexual experience. Girls whose HPV knowledge was high at baseline or increased over time tended to articulate accurate risk perceptions; those who were able to articulate accurate risk perceptions tended to report not having initiated sexual activity. Girls whose mothers demonstrated higher knowledge and/or communication about HPV vaccination tended to articulate accurate risk perceptions, whereas clinicians and media exposure did not appear to influence risk perceptions.ConclusionsHigher knowledge about HPV vaccines among mothers and girls was linked with more accurate risk perceptions among girls. Clinicians may play an important role in providing education about HPV vaccines to mothers and girls.     

The impact of an educational forum intervention on East African mothers’ HPV vaccine-related knowledge,attitudes, and intentions to vaccinate their adolescent children

ObjectiveHPV vaccine uptake in U.S. East African adolescents is low. We developed and evaluated a culturally-targeted interactive educational intervention for East African immigrant mothers to increase HPV-vaccine-related knowledge, attitudes, and intentions to vaccinate adolescent children.MethodsEligible mothers had ≥ 1 11–17-year-old child and reported all children’s HPV vaccination status as unvaccinated or unknown. The intervention was delivered via 10 dinners in the Seattle metropolitan area (8 with the Somali community, 2 with the Ethiopian community). Educational presentations and pre/post-tests on knowledge, attitudes, and intentions were conducted in the participants’ native language by a co-ethnic physician. Pre/post differences in responses were evaluated with McNemar’s tests and GEE models. HPV vaccination uptake 6-months post-intervention was evaluated using state immunization registry data.ResultsOf 115 participating mothers, most (84%) were Somali and < 40 years of age (60%). Median years of formal education was 8 (range 0–16), and 61% reported a household income <$25,000. Knowledge of HPV/HPV-vaccines was low pre-intervention, with correct responses ranging from 4% to 39% (61%-91% of responses were “not sure”); correct post-intervention responses ranged from 29% to 97%. Pre-intervention, only 12% of mothers thought they had enough information to make a decision about vaccination, compared to 90% post-intervention. Pre-intervention, only 16% of mothers reported that they were somewhat or very likely to vaccinate their child, compared to 83% post-intervention. All pre/post comparisons were statistically significantly different (p < 0.0001). Although mothers were more likely to report correct HPV-related knowledge and positive vaccine attitudes and intentions post-intervention, only two mothers’ children initiated HPV vaccination within 6 months after the intervention.ConclusionsResults illustrate that a culturally targeted educational intervention effectively increased East African mothers’ HPV vaccine-related knowledge, attitudes, and intentions to vaccinate their adolescent children. Future research should identify additional intervention components that can bridge the gap between intention and behavior to facilitate HPV vaccine uptake.     

Men who have sex with men who do not access sexual health clinics nor disclose sexual orientation are unlikely to receive the HPV vaccine in the UK

BackgroundMen who have sex with men (MSM) are recommended the Human Papillomavirus (HPV) vaccination due to their higher risk of genital warts and anal cancer.PurposeTo examine HPV vaccine acceptability amongst MSM in the UK.MethodsUsing advertisements via Facebook, MSM were recruited to an online survey measuring motivations for HPV vaccination. Logistic regression was performed to identify predictors of HPV vaccine acceptability.ResultsOut of 1508 MSM (median age = 22, range: 14–63 years) only 19% knew about HPV. Overall, 55% of MSM were willing to ask for the HPV vaccine and 89% would accept it if offered by a healthcare professional (HCP). Access to sexual health clinics (SHCs) [OR = 1.82, 95% CI 1.29–2.89], the disclosure of sexual orientation to a HCP [OR = 2.02, CI 1.39–3.14] and HIV-positive status [OR = 1.96, CI 1.09–3.53] positively predicted HPV vaccine acceptability. After receiving information about HPV, perceptions of HPV risk [OR = 1.31, CI 1.05–1.63], HPV infection severity [OR = 1.89, CI 1.16–3.01), HPV vaccination benefits [OR = 1.61, CI 1.14–3.01], HPV vaccine effectiveness [OR = 1.54, CI 1.14–2.08], and the lack of perceived barriers to HPV vaccination [OR = 4.46, CI 2.95–6.73] were also associated with acceptability.ConclusionsAlthough nearly half of MSM would not actively pursue HPV vaccination, the vast majority would accept the vaccine if recommended by HCPs. In order to achieve optimal uptake, vaccine promotion campaigns should focus on MSM who do not access SHCs and those unwilling to disclose their sexual orientation.