AVALIAÇÃO DA SENSIBILIDADE DOS DADOS DE COBERTURA VACINAL DE CRIANÇAS EM CAMPO GRANDE, MATO GROSSO DO SUL: UM INQUÉRITO DOMICILIAR

Abstract

Vaccination is one of the most cost-effective measures for preventing infectious diseases. In Brazil, the National Immunization Program (PNI) is responsible for planning and coordinating immunization actions, from supply and distribution to recording the doses administered. Considering the need for continuous monitoring of vaccination coverage and the use of data from information systems for this activity, this study was developed with the objective of comparing the estimated vaccination coverage with data obtained from a household survey and with computerized immunization records in Campo Grande, Mato Grosso do Sul. To this end, a population-based household survey was conducted that was designed according to the World Health Organization protocol for assessing vaccination coverage. A two-stage cluster sampling was used to select the clusters and households that were included in the study. The survey took place between October 2022 and September 2023. Sociodemographic data were collected from participants, in addition to an image capture of the vaccination card and removal of vaccination data/records, which were later compared with the computerized immunization records contained in two information systems: the Information Management System of the Municipal Health Department of Campo Grande (SESAU-Hygia) and the Electronic Citizen's Medical Record (PEC e-SUS). A total of 535 individuals were interviewed, and 157 vaccination cards were selected. Of these, 63 (42.4%) were children, 40.1% received the BCG vaccine and the first dose of Hepatitis B. In the SESAU-Hygia system, 71.7% of participants had vaccination records, with discrepancies in coverage between data sources. For children, in PEC e-SUS, greater coverage for BCG and Hepatitis B was observed (39.2% and 40.4%, respectively). The results indicate that, in the agreement assessment, there are flaws in monitoring, and despite the disparity, for the three sources of records there are few cases of incomplete vaccination schedule, but they demonstrate delay for the majority. The different numbers of doses between the sources reinforce the need to improve the registration systems and promote the use of the vaccination card as an essential tool to ensure traceability and increase adherence to vaccination. Keywords: vaccination coverage, household survey, information systems, computerized immunization records.