Objective: To analyze vaccination coverage according to social strata in children up to 24 months old, living in the municipality of Londrina (PR), Brazil.
Methods: This was a population-based survey conducted between 2021 and 2022, in which vaccination coverage and sociodemographic aspects of mothers and families were evaluated using Pearson's chi-square test.
Results: In a sample of 456 children, complete vaccination coverage varied according to social strata, being 36.0% (95%CI 26.8;57.8); in stratum A; 59.5% (95%CI 26.1;86); in stratum B; 66.2% (95%CI 51.7;78.1); in stratum C; and 70.0% (95%CI 56.1;81.0) in stratum D.
Conclusion: The analysis of vaccination coverage indicated that social stratum A is at highest risk for vaccine-preventable diseases.
Main results: The results of the study showed low full vaccination coverage in children up to 24 months of age in Londrina, being higher in the less financially advantaged social stratum, compared to the most advantaged.
Implications for services: The results found can support the qualification of the immunization program and enable, based on planning and ongoing health education, the definition of unique strategies to improve vaccination coverage.
Perspectives: Future perspectives point to the importance of carrying out investigations into the challenges inherent to vaccination, as well as qualitative and quantitative research addressing health professionals to better understand the data.
Objetivo: Análisis de la cobertura de vacunación según el estrato social, en niños de hasta 24 meses de vida, residentes en el municipio de Londrina (PR)
Métodos: Encuesta de base poblacional, realizada entre 2021 y 2022, en la que se evaluó la cobertura de vacunación y los aspectos sociodemográficos de las madres y las familias, a través de la prueba chi-cuadrado de Pearson.
Resultados: En una muestra de 456 niños, la cobertura de vacunación completa varió según el estrato social, siendo en el estrato A del 36,0% (IC95% 26,8;57,8), en el estrato B del 59,5% (IC95% 26,1;86), en el estrato C del 66,2% (IC95% 51,7;78,1) y en el estrato D del 70,0% (IC95% 56,1;81,0).
Conclusión: El análisis de la cobertura de vacunación indicó que el estrato social A es el de mayor riesgo para enfermedades prevenibles por vacunación.