Prevalence, Screening, and Parental Awareness of Oral Human Papillomavirus in Pediatric Populations (HOPE Project): Findings from a Cross-Sectional Pilot Study.
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Background: Human papillomavirus (HPV) infection in pediatric populations is an emerging area of interest due to its potential role in early viral transmission and long-term oncogenic risk. The oral cavity may serve as a reservoir for high-risk HPV types; however, its prevalence in children remains under-investigated and unclear. The HOPE (Human papillomavirus Oral infection in PEdiatric population) project aims to assess the prevalence of oral HPV using an innovative salivary sampling method, also exploring the influence of social determinants on parental awareness and attitudes toward HPV vaccination. This paper presents the findings from a cross-sectional pilot study. Methods: This pilot investigation included a total of 70 children (0-14 years) who underwent an oral examination and non-invasive salivary sampling using the novel LolliSponge device. HPV detection was performed using INNO-LiPA® HPV genotyping. Parents completed a questionnaire assessing socio-demographic factors and HPV-related knowledge. Associations between oral health status, social determinants, and HPV awareness were analyzed. Results: The LolliSponge device demonstrated excellent acceptability among the pilot population. The mean age at recruitment of the children thus far (8 years) appears to correlate with the absence of oral HPV infection. Regarding parental knowledge and attitudes, 51 out of the 70 respondents (72.9%, 95% CI: 62-83%) reported having heard of HPV; however, 94.3% (66/70) were unaware of its transmission routes, and 60% (42/70) did not know that it can cause cancer. Only 4 out of the 70 participants (5.7%) reported that their child had received the HPV vaccine. Lower awareness of the HPV vaccine was significantly associated with a lower educational level (p = 0.001), being married (p = 0.03), and having three or more children (p = 0.039). Awareness of the vaccine's existence also varied significantly by parental occupation (p = 0.02). Conclusions: The pilot findings of the HOPE project highlight both the potential of innovative strategies for detecting oral HPV infection in children and critical gaps in parental knowledge and vaccine uptake. Preliminary data also reveal an age-related bias in HPV status, suggesting the need for further investigations in a larger cohort of younger children (<5 years).