Table 1.
Endpoints of the PrevHPV study
Dimension/measure | Target population | Data sources | Time frame |
Vaccine coverage (main objective) | |||
≥1 dose | Adolescents 11–14 years | Health insurance (SNDS), vaccination centres | M2, M6, M12 |
2 doses | Adolescents 11–14 years | Health insurance (SNDS), vaccination centres | M2, M6, M12 |
Knowledge, beliefs, behaviours, practices, intention towards HPV vaccination (secondary objective 1) | |||
Items of the KABP-6C questionnaire | Adolescents, parents and GPs | Self-administered online questionnaires | Before intervention, M2 |
Efficiency (secondary objective 2) | |||
Incremental cost-effectiveness ratio | Adolescents 11–14 years | Costs of the intervention, Health insurance (SNDS), vaccination centres | M2, M6, M12 |
Annual cost and health gains of generalising the component(s) at the national level* | Adolescents 11–14 years (whole country) | Costs of the intervention, Health insurance (SNDS), vaccination centres | / |
Intervention components’ implementation (secondary objective 3) | |||
Intervention components’ dose and fidelity: activities performed according to the frame of reference for each component, use of tools developed for each component (assessment of the gap between activities/tools planned and activities/ tools really performed/used) | / | Regular activity reports collected on a standardised form during components’ implementation | |
Reached populations: percentage of target individuals who benefit from (or participate in) activities of each component (assessment of the acceptability of each component) | Adolescents, parents, school staff and GPs | Regular activity reports collected on a standardised form during components’ implementation | |
Intervention components’ adaptation: components modified to adapt them to the local context/environment of each school/municipality | / | Regular activity reports collected on a standardised form during components’ implementation | |
Satisfaction of target populations regarding each activity/component and identification of barriers and levers to components’ implementation | Adolescents, parents, schools and vaccination centres’ staff and GPs | Self-administered (paper or online) questionnaires collected at the end of the components’ implementation |
*Costs associated with generalising effective component(s) at 1 and 5 years will be compared with the corresponding health gains in terms of size of the vaccinated population (1 and 2 doses).
GPs, general practitioners; HPV, human papillomavirus; KABP-6C, Knowledge, attitude, behaviours, practices and six psychological determinants of vaccination intention (Confidence, Complacency, Constraints, Calculation, Collective responsibility and social Conformism); SNDS, Système National des Données de Santé.