Impact of the COVID-19 pandemic on incidence of psychiatric disorders using nationwide cohort data and ARIMA models.

ABSTRACT: The present study aimed to investigate the impact of the COVID-19 pandemic on the incidence rates of psychiatric disorders using nationwide cohort data. A retrospective cohort study was conducted using South Korea's nationwide claims database, covering 1,598,540 patients with new psychiatric diagnoses from January 2017 to June 2021. We calculated incidence rate ratios pre- and during-pandemic and employed the autoregressive integrated moving average (ARIMA) model and interrupted time-series analysis to assess pandemic effects on incidence. Additionally, to determine the immediate impact of the pandemic on the observed incidence rates, we used level changes at the transition point by adopting a transfer function. The incidence rates for overall and most psychiatric disorders during the pand

SUBMITTER: Seo JH 

PROVIDER: S-EPMC12304157 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature