In 2022, cervical cancer accounted for approximately 662,301 new cases worldwide, representing 6.9% of all cancers diagnosed in women. Furthermore, it was the fourth leading cause of cancer-related deaths among women
1. In China, human papillomavirus (HPV) vaccination is not included in the National Immunization Program, thus creating marked urban–rural disparities: only 5.7% of rural children are vaccinated
2. Local publicly funded initiatives have increased vaccination uptake in some cities (e.g., Shenzhen pilot; Jinan first-dose coverage > 90% among eligible girls)
3,4. Between 2017 and 2022, first-dose HPV vaccination among females 9–45 years of age rose from 0.01% to 10.15%, but remained far below the World Health Organization (WHO)’s 2030 target of 90% among 15-year-old girls
5,6. Beijing’s 2023–2030 action plan prioritizes 9–14-year cohort and provides free voluntary vaccination for first-year female students, alongside targets to strengthen screening and treatment
7. To decrease hesitancy, the WHO’s behavioural and social drivers (BeSD) framework guides identification of behavioral and social drivers, and supports brief, timely interventions
8. Video- and Short Message Service (SMS)-based prompts have been demonstrated to improve vaccine knowledge, attitudes, and uptake, thus supporting momentary educational approaches in resource-limited settings
9,10. For a single-event vaccination behavior such as HPV vaccination, incorporating acceptance determinants at the design stage might increase efficiency and cost-effectiveness.
This study used a quasi-experimental pre-post within-subjects design embedded in a multi-university survey, integrating an intention assessment with a brief educational video to analyze its effects on university students’ willingness to receive the HPV vaccine (Figure S1). The study was implemented across 23 universities in Beijing (from January 10 to February 10 of 2025) and yielded 6,244 valid questionnaires. Identical items on HPV knowledge, attitudes, and willingness were administered immediately before and after a 5-min educational video. We described respondent characteristics, vaccination status, and willingness, and examined heterogeneity and determinants aligned with BeSD domains. Pre-post changes in binary outcomes were assessed with the McNemar test, and changes in multicategory outcomes were assessed with the Stuart–Maxwell test. Associations between explanatory factors and vaccination willingness were analyzed with logistic regression. A two-sided P-value < 0.05 was considered statistically significant. No external control group was included; the outcomes captured immediate within-person change after the single-exposure video. The study was approved by the Medical Ethics Committee of the Beijing Center for Disease Prevention and Control, Beijing, China (Approval No. BJCDC2025011). All participants provided written informed consent.