Quality of Adverse Events Following Immunization (AEFI) Surveillance under Accountability of the Office of Disease Prevention and Control 7 Khon Kaen

Abstract

This cross-sectional descriptive study aims to investigate the quality of adverse events following immunization (AEFI) surveillance under the accountability of the office of disease prevention and control 7th Khon Kaen. The retrospective R506 and AEFI1 data of 189 participants from October 1, 2013 – September 30, 2017, were collected by authors. We compare the R506 and AEFI1 data with AEFI1 medical records at the hospital under the accountability of the office of disease prevention and control 7th Khon Kaen. Descriptive statistics were used for analyzing.

Our results showed that we reviewed the medical records of 7,314 cases. The probable with AEFI cases were 189 cases (2.6%). The 72/189 AEFI cases were reported in the R506 system. The data completeness of R506 reports was 38.1(95% CI =31.1 % - 45.4 %). All of AEFI patients were validity based on AEFI definition. The most data with main variables were correct reported including race (100%), gender, and age (97.2%). However, the variables of treatment outcomes (40.3%), diagnosis results (69.4%), and start illness date (75.0%) were an incomplete record. In consideration of timeliness, we found that the AEFI patients were reported within 3 days 70 cases (97.2%), within 4-7 days 2 cases (2.8%).

In conclusion, the data completeness of R506 was poor but AEFI reporting was good, therefore, we should be followed by a monitoring program to ensure adherence to both AEFI1 and R506 systems. Moreover, we should be developing surveillance databases which can be linked medical record data at the hospital and AEFI data, which lead to greater validity and better efficiency on AEFI surveillance.