Prevalence, risk factors, and vaccine effectiveness of COVID-19 infection in thai children, adolescents, and young adults in the omicron era.

ABSTRACT:

Background and objectives

The study of prevalence, risk factors, and vaccine effectiveness (VE) in children, adolescents, and young adults during the Omicron era has been limited, making this the objectives of the study.

Methods

A prospective, test-negative case-control study was conducted on patients aged 0-24 years old classified as patients under investigation (PUI) from January to May 2022. PUI with positive RT-PCR within 14 days were classified as cases, whilst PUI with negative RT-PCR in 14 days were controls. Univariate and multivariate analyses determined risk factors; VE was calculated using [1-adjusted odds ratio (OR)] × 100.

Results

The final analyses included 3,490 patients with a PUI infection rate of 45.6%. Heterologous vaccination regimens, including in

SUBMITTER: Chaiyakulsil C 

PROVIDER: S-EPMC10206128 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature