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Background: In 2018, Puerto Rico (PR) enacted a Human papillomavirus (HPV) vaccine school-entry requirement for students ages 11 to 12. Using the Consolidated Framework for Implementation Research (CFIR), we aimed to identify potential barriers and facilitators of this implementation.Methods: We conducted a total of 36 qualitative interviews with key informants who were stakeholders from different organizations (Department of Health, Schools, Healthcare Providers, and Community organizations in favor of the requirement) from July 2018 to January 2020. Three researchers performed the interview guide, data coding, and analysis according to the CFIR framework. We evaluated construct rating variability between the organizations to determine barriers and facilitators. Results: The strongest facilitators determined under the CFIR construct include the stakeholder's awareness of the parent's and student's needs to meet the HPV school-entry requirement. Other facilitators include initiatives for school-entry policies and the relative advantage of this requirement over different strategies. The strongest barriers included the cost for private providers to administer the HPV vaccine, the negative influence of social media about the vaccine, which affected parents' acceptance, and the lack of school nurses as available staff resources for the school entry requirement. Conclusions: Findings from this study can be used to improve implementation (adaptations/modifications) and inform other US states and countries in earlier stages of consideration of the adoption of similar immunization policies. Most barriers can be modifiable with the implementation of educational programs/training across schools, considering that they are the first line of response to parents of this school entry requirement.

Background: Human Papillomavirus (HPV) is the most common sexually transmitted infection in the United States of America (USA). Strategies from immunization programs aimed to promote HPV vaccine uptake through different alliances, including health community-based organizations and coalitions have been implemented nationally. Despite these efforts, vaccination rates remain under 80%. Understanding the extent of these partnerships and the geographic differences in the number of collaborations will aid in identify successful alliances at the national level for the promotion of HPV vaccine. Objective: This study aims to describe the frequency and the degree of partnerships for the promotion of the HPV vaccine. Methods: Immunization Program Managers (IPMs) in the USA were surveyed from August 2021 to February 2022 as part of the Implementation of School-Entry Policies for Papilloma Virus Vaccination (HPV-PIVac) study. A survey gathered information from IPMs on established partnerships and their extent of collaborations at two different levels. Of 22 partners, IPMs reported which groups or organizations had partnerships for HPV vaccine promotion occurred within the past year. Then, from each of the partnerships reported, IPMs categorized their collaboration strength by rank (networking, cooperating, coordinating, and/or collaborating). Descriptive and inferential analyses were performed to assess the patterns in the number of collaborations and their strength. The results were geographically mapped among the participant states and territories that completed the survey. To assess the relationship between the number of collaborations and the strength of collaborations, the Pearson correlation coefficient was estimated. Afterward, a linear regression model was used to compare the magnitude of association between the number of collaborations and the strength of those collaborations. Results: A total of 49 IPMs from 32 different states and territories participated, resulting in a 54.2% participation rate. The most common partnerships reported were with local health departments (80.0%), community health centers (78.0%), American Cancer Society (74.0%), and immunization coalitions (74.0%). The relationship between number of collaborations and strength of collaborations resulted in a positive and strong linear relationship (r = 0.91; p Citation Format: Alondra K. Mercado-Andino, Yiana G. Toro-Garay, Olga L. Díaz-Miranda, Diana T. Medina-Laabes, Ana P. Ortiz, Katelyn Wells, Erick Suárez, Vivian Colón-López. National partnerships for HPV promotion: An evaluation using the Association of Immunization Managers annual survey [abstract]. In: Proceedings of the 15th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2022 Sep 16-19; Philadelphia, PA. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2022;31(1 Suppl):Abstract nr A128.

Background: Human Papillomavirus (HPV) is a common sexually transmitted infection that has been associated with the development of cancers, most of them preventable if the HPV vaccine is administered before exposure. HPV school-entry policies could affect the HPV rates at a population level, hence the need for monitoring nationally the support of policies to assess acceptance at different levels. Objective: This study describes the state-level immunization program managers’ (IPMs) perception of the degree of the general public and policymakers’ acceptance or opposition to the HPV vaccine policies to increase HPV vaccination across their state or territory. Methods: As part of the study entitled Implementation of School-Entry Policies for Human Papilloma Virus Vaccination (HPV-PIVac), IPMs were surveyed about their perception regarding the acceptance or opposition of either (1) the public and (2) policymakers towards HPV vaccine policies. Five questions inquired about the degree of public concern towards HPV-related cancers, public hesitancy towards the HPV vaccine, public opposition towards HPV policies, and acceptance or resistance from policymakers regarding HPV vaccine policies using a five-item scale transformed into a three-item scale. Descriptive statistics were used to assess the managers perception about HPV vaccine policies. Fisher’s exact test was conducted to assess regional differences and the relationship between perception items from the public and policymakers. Results: 49 IPMs from 32 different states and territories participated in this study. In relation to the public concern towards HPV-related cancers, 93.8% of IPMs perceived that the public from their participant states and territories had moderate/mild concern. In comparison, only 6.3% perceived strong/overwhelming concern. For public hesitancy towards the HPV vaccine, 81.3% of IPMs perceived that the public had moderate/mild hesitancy, while 18.8% perceived strong/overwhelming reluctance. For public opposition towards HPV vaccine policies, 21.9% of IPMs perceived strong/overwhelming opposition. On the other hand, 40.6% of IPMs reported that the policymakers were resistant to education policies that promote the HPV vaccine. Similarly, 59.4% of IPMs reported that policymakers were resistant to HPV-school entry vaccination policies. No significant differences between regions were observed in the items analyzed (p>0.05). Fisher’s exact test indicated a significant association between the public opposition towards the HPV vaccine policies and the posture of policymakers towards HPV education policies (p Citation Format: Yiana G. Toro-Garay, Alondra K. Mercado-Andino, Olga L. Diaz-Miranda, Diana T. Medina-Laabes, Ana P. Ortiz, Katelyn Wells, Erick Suárez, Vivian Colón-López. National assessment of the HPV acceptance: Public attitudes and policy climate [abstract]. In: Proceedings of the 15th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2022 Sep 16-19; Philadelphia, PA. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2022;31(1 Suppl):Abstract nr A129.

Prior to the COVID-19 pandemic, Puerto Rico (PR) had one of the highest Human Papillomavirus (HPV) vaccine rates in the United States. Yet, widespread misleading information about the COVID-19 vaccine might negatively impact HPV vaccine attitudes. This study aims to assess and compare HPV and COVID-19 vaccines attitudes toward school-entry policies among adults living in PR. A convenience sample of 222 adults (≥21 years old) living in PR were recruited through social media and completed an online survey from November 2021 to January 2022. Participants answered questions about HPV and COVID-19 vaccines knowledge (ranging from 0=none to 3=high knowledge), attitudes toward vaccination policies for school-entry, and perceptions of trusted and untrusted sources of information. Descriptive statistics were computed to identify the demographics characteristics of the participants. We also estimated the prevalence ratio (PRadjusted) using a logistic regression model to assess the magnitude of association between COVID-19 vaccination for the school-entry policy and HPV vaccination for school-entry policy agreement, adjusting for different confounders. The mean age of the study sample was 36.73 ± 11.18 years. The majority of the sample were female (87%, n=194), with at least some college of education (92%; n=205) and employed (61%; n=165). One-fifth of the participants reported having children between ages 11 and 16 (n=46). Participants’ perceived knowledge about the HPV vaccine was moderate (mean=1.72; SD=1.12), while for COVID-19 vaccine was moderately high (mean=2.47; SD=.68). The most trusted form of information for HPV and COVID-19 vaccines were health care providers (42% and 17%, respectively), the Centers for Disease Control and Prevention (35% and 55%, respectively), and the Department of Health (15% and 19%, respectively). The least trusted source of information included social media (40% and 39%, respectively), friends and family (23% n=47, and 17% n=33, respectively), and the Department of Health (15% n=30, and 18% n=36, respectively). More than half of the participants agreed that HPV (76% n=156) and COVID vaccines (69% n=136) should be required for school-entry. Agreement with COVID-19 vaccination for the school-entry policy was significantly associated with HPV vaccination for school-entry policy agreement (PRadjusted:1.96; 95% CI:1.48-2.61) after controlling for age, sex, education, and having children between age 11 and 16. Findings suggest that adults living in PR have an overall positive attitude about mandatory HPV and COVID-19 vaccination school-entry policies, and these attitudes are interrelated. Yet, it is concerning that the Department of Health is identified as one of the least trusted sources of information, as it has a prominent role in implementing HPV and COVID-19 vaccine policies in PR. Further research should elucidate why the Department of Health is considered an untrusted source of information among adults living in PR and evaluate the implications of the COVID-19 pandemic on HPV vaccine attitudes and adherence rates. Citation Format: Jessica N. Rivera-Rivera, Olga L. Díaz-Miranda, Diana T. Medina-Laabes, Erick Suárez, Ana P. Ortiz, Vivian Colón-López. HPV and COVID-19 vaccines attitudes and preferred sources of information among adults living in Puerto Rico [abstract]. In: Proceedings of the 15th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2022 Sep 16-19; Philadelphia, PA. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2022;31(1 Suppl):Abstract nr A025.

Background: The human papillomavirus (HPV) vaccine is a cancer prevention tool, yet vaccination coverage among adolescents remains suboptimal in the United States. Research shows significant disparate incidence and mortality rates of HPV-related cancers in Puerto Rico (PR). In 2018, the PR Department of Health (DOH) enacted an HPV vaccine school-entry requirement for adolescents 11 to 12 years old, and on August 2020 extended the requirement to include adolescents up to 16 years old. Amid the COVID-19 pandemic in the US, during March-August 2020, national data showed that HPV vaccine uptake rates decreased about 75%. Public health measures, such as stay-at-home orders, may have caused this decline by limiting access to preventive services. Our study explored, using a qualitative assessment, the impact of the COVID-19 pandemic on the implementation of the HPV vaccine school-entry requirement in PR. Methods: We conducted 26 interviews with stakeholders from schools, DOH employees, Department of education staff, health providers, and community-based organizations from 08/2021-03/2022. Interviews were recorded and transcribed in Spanish. Data were analyzed using applied thematic techniques by two trained coders using Atlas-ti 8. We discussed eight of these interviews among the team to identify major barriers related to the HPV school-entry implementation during the pandemic. Results: Our analysis identified the following preliminary emergent themes including: (1) lockdown limitations and access barriers to the vaccine and (2) shifting immunization priorities. Most participants noted that the March 2020 lockdown limited parents’ ability to get their kids vaccinated and for schools to monitor the vaccine requirements; however, as vaccination centers and schools re-opened, gradually, vaccination processes increased. Participants described how during the pandemic, public health agencies prioritized the COVID-19 vaccine missing other vaccines that are required for school-entry, including the HPV vaccine. Discussion: Continuation of the implementation of the HPV vaccine school-entry requirement was challenging during early stages of the pandemic due to public health measures enacted to stop the spread of COVID-19. Moreover, once the COVID-19 vaccine was available, public heath vaccination priorities shifted. Nonetheless these barriers, efforts to increase HPV vaccine to pre-pandemic rates should continue, including providing educational support to parents, increase vaccine promotion, and creating community collaborations. As new guidelines recommend COVID-19 boosters, for everyone ages 5 years and older, this opportunity could serve to vaccinate against HPV as part of the bundling implementation of the HPV vaccine school-entry requirement. Citation Format: Coralia Vázquez-Otero, Diana T. Medina-Laabes, Derick Pérez-Guzmán, Olga L. Díaz-Miranda, VOCES PR, Vivian Colón-Lopez. Stakeholders’ perceptions on the impact of the COVID-19 pandemic on the implementation of the HPV vaccine school-entry requirement in Puerto Rico [abstract]. In: Proceedings of the 15th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2022 Sep 16-19; Philadelphia, PA. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2022;31(1 Suppl):Abstract nr A096.

In September 2017, Hurricane Maria devastated the Caribbean region, among them the US territory of Puerto Rico (PR). Vaccination distribution and uptake suffered from the impact. This study evaluated the trends in monthly vaccination initiation rates for human papilloma virus (HPV), Tdap and meningococcal conjugate (MenACWY) adolescent vaccines from 2015 to 2019, during which it was possible to observe and analyze the impact of Hurricane Maria on vaccine initiation. Monthly initiation rates were estimated. Age-standardized initiation rate ratio (SRR) and 95% CI were estimated. The analysis included 85,340 adolescents; 52.3% were male, and 47.7% were females. September 2017 showed HPV vaccine initiation had the lower rates of all the studied vaccines, with a rate of 75% after the disaster (from a rate of almost 90% in July 2017). Tdap and MenACWY vaccines rates remained above 90% in the same period. The SRR of HPV vaccine for September and October 2017 showed an estimated reduction of 5% and 8% in vaccine initiation rates, respectively for each month, when 2016 was the reference year (p > .05). The SRR of Tdap and MenACWY vaccines for November 2017 showed significant reductions when 2015 and 2016 were reference years (p

Background The Human papillomavirus vaccine (HPV) is an essential tool for the prevention of HPV-related cancers. In Puerto Rico, the Secretary of Health established a school entry requirement of at least one dose of HPV vaccination in girls and boys aged 11 and 12 years, taking effect in August 2018. Our study aimed to examine parents’ and guardians’ views of unvaccinated children about the process of implementation of the new HPV vaccination school entry policy in Puerto Rico and identify potential barriers and facilitators related to the implementation of this requirement. Methods During April through November 2019, we conducted three focus groups (n = 12) and eight in-depth semi-structured interviews with parents of children aged 11 and 12 who had not yet initiated the HPV vaccine series. The interview topics addressed were: perception of vaccination, HPV vaccine and it is inclusion as new school entry requirement practice, procedure of the sources of information, influencers, and willingness to change. The interviews were recorded and transcribed by our staff members. We identified emergent themes through thematic analysis. Results The participants’ perspective on the HPV vaccine school requirement was mixed. Lack of information of the HPV vaccines and lack of communication about the school-entry requirement were the themes most mentioned in the interviews. Moreover, previous negative experiences from friends or family members and adverse effects deterred some participants from vaccinating their kids. We discussed barriers in the process of soliciting an exemption. Conclusion Most barriers mentioned by study participants are modifiable. Information about the HPV vaccine mandate’s implementation and educational materials regarding HPV vaccine safety need to be provided to address parents’ concerns related to the vaccine’s side effects. Schools (teachers, principal directors, and administrative staff), the government, and parent organizations need to be part of these efforts. This multilevel approach will help to improve disseminating information about HPV vaccination to clarify doubts and misinformation among parents.

The purpose of this special report is to describe chronologically the events that contributed to the development and approval of legislation and subsequent implementation of a school vaccination mandate in order to prevent HPV and HPV-associated cancers in Puerto Rico (PR). Starting in 2010, PR initiated public-policy approvals aimed at improving cancer registries and HPV vaccine coverage through health insurance for adolescents aged 11 to 18 years. In 2014, scientific and community efforts succeeded in documenting the magnitude of morbidity caused by HPV and jointly developing HPV vaccine prevention and promotion strategies. In August 2018, PR became one of the first four territories of the United States of America to implement the HPV vaccine school entry requirement to decrease the incidence of HPV-associated cancers on the island. In 2019, it was enshrined in law that every immunization provider must submit immunization data to the Puerto Rico Immunization Registry. The case of PR demonstrates that public policy-making alongside collaboration between academic, scientific, and community coalitions can achieve population change and measurable outcomes aimed at HPV prevention. Countries with a similar public health problem could adopt efforts similar to those presented herein and align them with the World Health Organization goal of eradicating cervical cancer by 2030.O propósito deste relatório especial é descrever cronologicamente os eventos que contribuíram para o desenvolvimento e a aprovação de legislação, e a implementação da exigência escolar de vacinação em Porto Rico (PR), a fim de prevenir o HPV e os cânceres associados a ele. A partir de 2010, PR iniciou as aprovações de políticas públicas com o objetivo de aprimorar o registro dos casos de câncer e a cobertura vacinal contra o HPV, por meio de planos de saúde, em adolescentes de 11 a 18 anos. Em 2014, esforços científicos e comunitários permitiram documentar a magnitude das doenças causadas pelo HPV e elaborar conjuntamente estratégias de prevenção e promoção da vacina contra o HPV. Em agosto de 2018, PR foi um dos primeiros quatro territórios dos Estados Unidos da América a implementar a vacina contra o HPV como exigência escolar, a fim de diminuir a incidência de cânceres associados ao HPV na ilha. Em 2019 ficou garantido por lei que todos os vacinadores devem enviar informações ao Registro de Imunização. O caso de PR demonstra que o desenvolvimento de políticas públicas, em conjunto com parcerias entre coalizões acadêmicas, científicas e comunitárias, alcança mudanças populacionais e resultados mensuráveis dirigidos à prevenção do HPV. Países com uma problemática de saúde pública similar poderiam adotar esforços semelhantes aos apresentados e alinhá-los ao objetivo da Organização Mundial da Saúde: a erradicação do câncer cervical até 2030.

Background: Human papillomavirus vaccine (HPV) is an important tool for prevention of HPV- related cancers. In Puerto Rico, the Secretary of Health established a school entry requirement of at least 1 dose of HPV vaccination in girls and boys aged 11 and 12 years taking effect in August 2018. Our study aims to examine parents’ views and opinions of the process of implementing the new HPV vaccination school entry policy in Puerto Rico, and understand barriers and facilitators related to this HPV immunization policy. Methods: Three focus group (n=12) and eight in-depth semi-structured interviews were performed, along with a survey. The interviews were recorded and transcript by our staff members. Through a thematic analysis were identified emergent themes. Results: Lack of information in relation to the policy were the theme most mentioned in the interviews. Moreover, participants expressed that previous negative experiences, from friends or family member, adverse effect and the lack of communication from school and healthcare providers deter them from the decision of vaccinated their kids. Barriers in the process of soliciting an exemption was discussed. Conclusion: Most barriers mentioned by participants who express hesitation about vaccinating their kids with the HPV vaccine, are modifiable providing parents information about the mandate’s implementation, and educational materials that address their concerns related to the vaccine’s side effects. Implementation of this efforts, however, need to consider impacting the school (teachers, principal directors, and administrative staff), the government and parents. This multilevel approach will help to improve the dissemination of information about HPV vaccination in order to clarify doubts and misinformation among hesitant parents.

El propósito de este informe especial es describir cronológicamente los eventos que contribuyeron al desarrollo y aprobación de la legislación e implementación del requisito escolar de vacunación en Puerto Rico (PR), con el fin de prevenir el VPH y los cánceres asociados a este. A partir del 2010, PR inició las aprobaciones de políticas públicas con el objetivo de mejorar el registro de casos de los cánceres y la cobertura de la vacuna contra el VPH a través de los planes médicos en adolescentes de 11 a 18 años. En el 2014, los esfuerzos científicos y comunitarios lograron documentar la magnitud de las enfermedades causadas por el VPH, y desarrollar en conjunto, estrategias de prevención y promoción de la vacuna contra el VPH. En agosto de 2018, PR logró ser uno de los primeros cuatro territorios de los Estados Unidos de América en implementar la vacuna contra el VPH como requisito escolar con el fin de disminuir la incidencia de cánceres asociados al VPH en la isla. En el 2019 se garantizó por ley que todo proveedor de vacunación debe reportar al Registro de Inmunización. El caso de PR demuestra que el desarrollo de políticas públicas junto con colaboraciones entre coaliciones académicas, científicas y comunitarias, logran cambios poblacionales y resultados medibles dirigidos a la prevención de VPH. Países con una problemática de salud pública similar podrían adoptar esfuerzos similares a los presentados, y alinearlos al objetivo de la Organización Mundial de la Salud: erradicación del cáncer cervical para 2030.

Introduction: Individuals and groups against vaccination have used various outlets, such as mass media, social media, and legislative hearings to express doubts about the human papillomavirus (HPV) vaccine. In 2018, the Puerto Rico Department of Health included the HPV vaccine as a school-entry requirement for children ages 11-12. Currently, the requirement extends to students ages 11-16. Since the announcement in 2017 of the new school-entry requirement as a preventive cancer strategy, many groups have expressed opposition. Although studies have documented the barriers and facilitators for implementing this policy on the island, qualitative studies assessing stakeholders' views against the implementation of the new requirement are lacking. We aimed to describe stakeholders' perspectives who opposed the HPV vaccine and the implementation as a school-entry requirement in PR. Methods: In-depth interviews (n=8) were conducted between March 2019-January 2020. Healthcare providers, religious leaders, and coalition spokespersons were interviewed. The Consolidated Framework for Research Implementation (CFIR) was used to develop the semi-structured interview guide. CFIR domains (and constructs) included were characteristics of individuals (knowledge, attitudes, and beliefs about the HPV vaccination, school-entry requirement, and exemptions), intervention characteristics (current practices, advantages and disadvantages of the implementation), and implementation procedures (planning, commitment of implementers and evaluation). Interviews were audio-recorded and transcribed in Spanish. Transcripts were analyzed using qualitative thematic analysis. Additional constructs were derived from CFIR constructs and emergent codes were included. Results: The most common CFIR domain observed was individual characteristics (knowledge and beliefs), of which HPV hesitancy and vaccine distrust were emergent themes. Arguments against the policy also cited the adverse effects of the vaccine under the intervention characteristics domain (evidence strength and quality). Lastly, excessive government interference was discussed by stakeholders in which concerns regarding the HPV vaccine school-entry requirement and how this policy does not align with their values of religious freedom, parental, educational and sexual rights were mentioned. Conclusion: Despite the recent documented positive impact of the school-entry requirement in HPV immunization rates in PR, many continue to oppose the vaccine mandate. Stakeholders' arguments against the HPV vaccine policy, including knowledge and beliefs, and excessive government interference, echo concerns of other mandated vaccines reported in the literature. Understanding arguments against school-entry requirements is necessary to tailor educational campaigns to increase vaccination rates, which were affected by the COVID-19 pandemic, prevent HPV-related cancers, and reduce the hesitancy in of school-entry policies in the future. Citation Format: Gloriany Rivas, Roxana Soto-Abreu, Glizette O. Arroyo-Morales, Diana T. Medina-Laabes, Olga L. Díaz-Miranda, Coralia Vázquez-Otero, Vivian Colón-López. Understanding views against the HPV vaccine school-entry requirement in Puerto Rico [abstract]. In: Proceedings of the AACR Virtual Conference: 14th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2021 Oct 6-8. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2022;31(1 Suppl):Abstract nr PO-040.

Introduction: Puerto Rico Libre de Enfermedades Prevenibles (Puerto Rico Free of Preventable Diseases) was an online, community-based initiative consisting of eight educational training programs regarding school entry vaccines, including HPV vaccine as the most recent requirement. The Community Advisory Board of the HPV-PIVac study (CAB-PIVac) developed this activity in response to barriers identified on school personnel by the HPV-PIVac study: lack of knowledge about the HPV vaccine and its school entry requirement and need for training. In February 2020, CAB-PIVac members collected data through a self-administrated survey to identify potential topics. After several meetings, members identified the topics and resources for these webinar series. Our purpose is to present how the integration of community members into an ongoing research study allowed rapid response to developing an educative initiative to impact school staff concerning preventable diseases and the HPV vaccine. Methods: Eight webinars in four weeks were transmitted in-live through the Zoom platform from June 26 to July 17, 2020. They were on-demand until July 24, 2020. Theme per week: World without vaccine: COVID-19; Teenager vaccine in School; Future free of HPV-related cancer; and Legal aspects of vaccination for the school-entry. The participants received via email an evaluation form to assess the impact of these webinars. Using data from the registration form, we collected the following participants' characteristics: sex, age, education sector, and role in the school. We performed a thematic analysis collecting all the messages posted in the Q & A section of each webinar to identify the topics in which the participants had doubts or more interest. Results: A unique participation of 954 participants were registered, and the range of involvement on the education webinars was 588 to 780 participants. Based on the type of education, 28.8% were private, and 70.9% were from public education. Most of the participants were females (89.6%) and with an average age of 42 years (range: 21 -74). Of the participants who reported their role at their schools (n=648), 31.4% were school nurses, followed by the school director (22.7%). Twelve percent of the participants were teachers. The evaluation was satisfactory (99.7%) considering the tools offered and the clear information presented. The thematic analysis results showed that the two topics discussed in the Q &A section were the immunization registry (problems with system access) and the vaccination series (age to initiate the series). Conclusion: This initiative was developed and performed in less than five months. Many national and international organizations, coalitions, and government agencies are working to achieve the same goal: eradicated HPV-related cancers and strengthen the awareness for HPV prevention. Involve these community members in the research is crucial to secure how the results of the investigation studies could impact the community quickly and accurately. Citation Format: Diana T. Medina-Laabes, VOCES PR Coalition, JAC-HPV PIVAC PR, Omayra Salgado Cruz, Roxana Soto Abreu, Olga L. Diaz Miranda, Marta M. Sánchez Aracil, Vivian Colón-López. A Puerto Rico free of preventable diseases: An online education intervention for school staff during the COVID-19 pandemic era in Puerto Rico [abstract]. In: Proceedings of the AACR Virtual Conference: 14th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2021 Oct 6-8. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2022;31(1 Suppl):Abstract nr PO-027.

Background In August 2018, Puerto Rico (PR) became the 4th state or territory in the United States to adopt a human papillomavirus (HPV) vaccine school-entry requirement, for students 11–12 years old. Evidence suggests that the content of media coverage may impact people’s perception of HPV vaccine and their willingness to vaccinate. This study aimed to analyze the content of digital news coverage related to the implementation of the policy in PR. Methods A content review was conducted of digital media published from January 2017 through December 2018. The content reviewed was carried out in two steps: 1) creating a matrix to summarize each article’s content about the policy and 2) qualitative analysis using a grounded theory approach. Results The search resulted in 34 articles obtained from 17 online local and international news outlets that reported the policy's implementation. Analyses showed that 61% of the news articles did not mention the number of required doses, and 79% discussed the new policy concerning cancer prevention. In 2017, news coverage focused mostly on describing the policy, while 2018 coverage focused on controversies surrounding the implementation. Neutral emergent codes included: 1) Description of the policy; 2) Information about HPV related cancers; and 3) General information about HPV vaccine. Negative emergent codes included: 1) infringement to patient and parental autonomy; 2) Hesitancy from the political sector, and 3) Hesitancy from groups and coalitions. Positive content included: 1) knowledge and acceptance of HPV vaccine for cancer prevention; 2) importance of education and protective sexual behaviors; and 3) new vaccination law proposal. Conclusions Most of the media coverage in PR was neutral and included limited information related to the vaccine, HPV, and HPV-related cancers. Neutral and negative themes could influence public concerns regarding the new policy, as well as HPV vaccination rates in PR.

Introduction: School-entry vaccination mandates have been widely used as a mechanism to ensure high immunization coverage rates. In August 2018, Puerto Rico (PR) mandated a Human papillomavirus (HPV) vaccine school-entry policy for student’s ages 11 to 12 years. This new requirement in PR presents an opportunity to study the implementation process across a 5 years period (2018-2023). In this ongoing study, we conducted Key Informant (KI) interviews to document factors that facilitate or impede a successful HPV vaccine school policy implementation in PR. Methods: We conducted 29 KI semi-structured interviews with stakeholders in the Department of Health (DOH), school system, healthcare organizations, community-based organizations and coalitions in PR (in favor and against the school-entry policy) from July 2018 to June 2019. The interview guide included relevant domains based on the Consolidated Framework for Implementation Research, such as Intervention characteristics, Inner setting, Outer setting and Individual characteristics. We transcribed interviews, coded transcripts and analyzed data to identify emergent themes. Results: Potential facilitators of HPV policy implementation included: clear enforcement messages and use of personal anecdotes by nurses from health and school fields, the coverage of the vaccine by medical insurers, and the power of the Secretary of Health to include vaccines required for school-entry. Perceived barriers to the implementation process were: lack of communication between the DOH and the Department of Education, lack of knowledge about the HPV vaccine, uncertainty about the consistency of implementation in schools, lack of vaccine availability and disproportionate burden for regional school nurses. Other barrier to implementation mentioned included: school directors and teachers were detached from the implementation process, and lack of compliance from private health providers and public schools towards the immunization registry. Coalitions against this mandate focused their concerns on the right of parental autonomy. Recommendations from KI focused on: stricter policies to enforce this law in public schools, clear messages about the new mandate and HPV vaccine current coverage by health care insurers in PR. Moreover, KI expresses the need for more support from the DOH (technical and educational training to school principals and teachers, health promotion), and the need for increased education about the HPV vaccine and recommendations. Conclusions: Although school vaccination mandates are an evidence-based strategy for improving vaccination rates, several implementation barriers could affect the impact. Findings from this study can be used for improving policy procedures and implementation, and can inform states/territories considering adopting similar immunization policies. The information generated will help determine adaptations/modifications that may be needed for policy implementation in PR and other populations in the future. Citation Format: Roxana Soto-Abreu, Manuel E. Rivera-Encarnación, Vilnery Rivera-Figueroa, Glizette O. Arroyo-Morales, Diana T. Medina-Laabes, Olga L. Diaz-Miranda, Pamela C. Hull, Ana P. Ortiz-Martínez, Erick L. Suárez-Pérez, María E. Fernández, Vivian Colón-López. Human papillomavirus school-entry vaccination mandate in Puerto Rico: Barriers and facilitators from the perspective of key informants [abstract]. In: Proceedings of the Twelfth AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2019 Sep 20-23; San Francisco, CA. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2020;29(6 Suppl_2):Abstract nr D047.

Introduction: In August 2018, Puerto Rico (PR) adopted a Human Papillomavirus (HPV) vaccine school-entry policy, required for students, 11-12 years old. Previous research suggests that influence from media coverage and content might impact parents’ perception of vaccine efficacy, safety and willingness to vaccinate their children. We analyzed the coverage related to the implementation of the HPV vaccine in PR as a requirement for school-entry policy. Methods: A systematic review was conducted from January 2017 through December 2018. Search terms (in Spanish) included: Virus de Papiloma Humano, VPH, vacuna, vacunación contra VPH, implementación, among others. The search included 17 online websites; 34 articles were gathered, which were included if coverage of the new school entry-policy was mentioned in the content. The following steps were developed to review the content of the articles: 1) a matrix to evaluate the content of the article in relation to the school-entry policy and 2) qualitative analysis using grounded theory approach. Since headlines might promote readers’ perception, three different raters read the article title to document the sentiment (positive, negative or neutral). Fleiss’ Kappa analysis was used to assess intra-rater agreement. Results: Data from the matrix showed that 79% focused on this new school-entry mandate as a policy for cancer prevention and 61% of the news articles did not discuss the HPV doses required. Media reports highlighted the link between HPV and HPV-related cancers, mostly cervical cancer (59%). Limited information regarding other HPV-related cancers such as vaginal (18%), vulvar (20%), anal (12%), penile (21%) and oropharynx (24%) was included. In 2017, prior to policy implementation, news coverage focused mostly on the description of the school-entry policy, while 2018 coverage focused on the controversy of the school policy being mandatory. Most of the emergent themes related to the implementation of the HPV vaccine as a school-entry policy were negative, involving: 1) risk of the vaccine (safety and efficacy); 2) representative hesitancy; 3) parental autonomy; 4) right to be informed; and 5) lack of education about HPV and the vaccine. Positive content included: 1) knowledge and acceptance of the HPV vaccine for cancer prevention; 2) the importance of education and protective sexual behaviors; 3) support from coalitions, health providers and government representatives for implementation. The agreement of the headline sentiment between the three raters was fair (k= 32%; p Citation Format: Vilnery Rivera-Figueroa, Glizette O Arroyo-Morales, Roxana Soto-Abreu, Manuel E Rivera-Encarnación, Olga L Díaz-Miranda, Diana T Medina-Laabes, Ana P Ortíz-Martínez, Erick L Suárez-Pérez, Maria E Fernández, Pamela C Hull, Vivian Colón-López. Content analysis of online media coverage of the human papillomavirus vaccine as a school-entry policy in Puerto Rico [abstract]. In: Proceedings of the Twelfth AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2019 Sep 20-23; San Francisco, CA. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2020;29(6 Suppl_2):Abstract nr D045.

Background Obesity has been associated with the development of cancer, including cervical cancer, probably due metabolic dysregulation and chronic inflammation. Given the similarity in the pathophysiology of cervical and anal neoplasia, we aimed at evaluating if overweight (BMI: 25–29.9 kg/m2) and obesity (BMI ≥30 kg/m2) are a risk for anal high-grade squamous intraepithelial lesions (HSIL) in a group of HIV-infected Hispanics from Puerto Rico. Methods A cross-sectional study was performed using data from the medical records of 291 HIV-positive patients of the Anal Neoplasia Clinic of the University of Puerto Rico Comprehensive Cancer Center from June 2015 to April 2018. Logistic regression models were used to estimate the odds ratio (OR) with 95% confidence intervals (CI) for estimating the association between overweight and obesity with HSIL (based on histopathology and based on the definition of the LAST project), controlling for potential confounders. Results Overall, 35.4% and 25.1% of patients were overweight and obese, respectively. The prevalence of HSIL was 45.2% among under/normal weight patients, 36.9% among overweight patients and 35.6% for obese patients (p-trend=0.16). Although decreased odds of HSIL were observed among overweight (OR=0.67, 95% CI=0.37–1.21) and obese (OR=0.71, 95% CI=0.36–1.38) patients than under/normal weight patients after adjusting for age, gender, history of diabetes, and having > 10 lifetime sexual partners, these results were not statistically significant. Conclusions Overweight and obesity are frequent among our patients, but we found no significant association between overweight/obesity and HSIL. Although our study may be limited in sample size, future studies should further assess this association and the potential biological mechanisms for it.