Status and Correlates of Hypersomnia in Hospitalized Patients with Unipolar Depression - Beijing, Henan, and Shandong, China, August 2019-March 2021

What is already known about this topic? Hypersomnia is an atypical characteristic of unipolar depression (UD), indicating a high risk of bipolar depression. Identifying the symptom should be prioritized in patients with UD. However, the status and correlated factors of hypersomnia greatly varied across investigations. What is added by this report? Among inpatients with UD, the rate of hypersomnia was roughly 28.1% (39/139). Younger age (18-35 years) and recurrent depression were independent correlates of hypersomnia in hospitalized patients with UD. What are the implications for public health practice? Understanding the high rate and independent correlates of hypersomnia in hospitalized patients with UD will help clinicians and policymakers to identify characteristics of depression, strengthen the management capacity and improve the quality of treatment and control programs.