Santa Casa de São Paulo, Faculdade de Ciências Médicas, São Paulo, SP, Brazil.
Universidade Federal do Espírito Santo, Vitória, ES, Brazil.
Epidemiol Serv Saude. 2024 Oct 21;33(spe2):e20231393. doi: 10.1590/S2237-96222024v33e20231393.especial2.en. eCollection 2024.
To analyze vaccination coverage according to social strata in children up to 24 months old, living in the municipality of Londrina (PR), Brazil.
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.
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.
The analysis of vaccination coverage indicated that social stratum A is at highest risk for vaccine-preventable diseases.
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.
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.
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.
分析巴西洛雷纳市（PR）24 个月以下儿童按社会阶层划分的疫苗接种率。
这是一项基于人群的调查，于 2021 年至 2022 年进行，使用皮尔逊卡方检验评估了母亲和家庭的疫苗接种率和社会人口统计学方面。
在 456 名儿童的样本中，完全疫苗接种率根据社会阶层而有所不同，A 阶层为 36.0%（95%CI 26.8;57.8）；B 阶层为 59.5%（95%CI 26.1;86）；C 阶层为 66.2%（95%CI 51.7;78.1）；D 阶层为 70.0%（95%CI 56.1;81.0）。
疫苗接种率分析表明，A 阶层最容易感染疫苗可预防疾病。
该研究结果显示，洛雷纳市 24 个月以下儿童的完全疫苗接种率较低，较不富裕的社会阶层（A 阶层）高于较富裕的社会阶层（D 阶层）。
发现的结果可以支持免疫计划的资格认证，并能够根据规划和持续的健康教育，定义独特的策略来提高疫苗接种率。
未来的展望指出了对疫苗接种所面临挑战进行调查的重要性，以及对卫生专业人员进行定性和定量研究，以更好地了解数据。
