COVID-19 vaccine coverage effectiveness among elderly with geographical information system mapping: what about Indonesia?

Abstract

Background: The elderly are the next priority after health workers and public service workers get the COVID-19 vaccine to control morbidity and even mortality in the elderly who have a risk factor that is up to 60 times more severe than children. Objectives: This study aimed to spatially analyze the effectiveness of COVID-19 vaccine coverage among the elderly in Indonesia with geographic information system (GIS) mapping and to analyze the relationship between COVID-19 vaccine coverage in the elderly with the COVID-19 cure rate. Design: This quantitative study used secondary data on COVID-19 vaccination coverage in the elderly group of Central Java Province, Indonesia in 2021. Methods: Data were analyzed using a simple linear correlation test to test the relationship between variables with a 1,774,396 elderly sample size, then distributed using mapping of COVID-19 vaccination coverage using a GIS. Results: The relationship between COVID-19 vaccine dose-2 elderly coverage cure rate showed a strong relationship ( r = 0.677) and a positive pattern. The coefficient value with a determination of 0.459 means that the regression line equation obtained can explain 45.90% of the variation in the COVID-19 cure rate. There was a significant relationship between COVID-19 vaccine elderly coverage and the COVID-19 cure rate ( p -value = 0.005). Conclusion: Clinicians and public health workers should continue to encourage elderly vaccination at all recommended doses for eligible individuals.