Correlation between Completeness Status of COVID-19 Vaccination and Death of Confirmed COVID-19 Cases in Jakarta, July – December 2021

Introduction: According to data from the Jakarta Health Office, infectious diseases are among the top causes of death in the city, ranking third from 2016 to 2019 and rising to first place in 2021. The ratio of COVID-19-related deaths to all reported deaths also increased in 2021 compared to 2020. Despite the importance of vaccination, the coverage in DKI Jakarta were below the target up until the last day of vaccination program.

Objective: To determine the correlation between the completeness of the COVID-19 vaccination status and the death of confirmed COVID-19 cases.

Materials and methods: This is a retrospective cohort study with 1,881 samples from Jakarta Health Office COVID-19 surveillance data from July to December 2021, analyzed using Cox regression.

Results: The crude-hazard ratio correlation between the completeness of COVID-19 vaccination status and death in confirmed cases was 3.19 (95 % CI: 2.06 to 4.94), and the hazard ratio after adjusting for age group, symptom criteria, concomitant heart disease and hypertension covariates was 3.47 (95 % CI: 2.13 to 5.67).

Conclusion: Our findings suggest that, to reduce the mortality rate in confirmed COVID-19 cases, complete and evenly distributed vaccination among all target groups is necessary.

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