Ayaka Ubara

Evaluation of Severity Levels of the Athens Insomnia Scale Based on the Criterion of Insomnia Severity Index

Isa Okajima, Towa Miyamoto, Ayaka Ubara et al. · International Journal of Environmental Research and Public Health · 2020 · 90 citations · Full text

Nursing, Psychiatry, Psychometrics +16

Limited social support is associated with depression, anxiety, and insomnia in a Japanese working population

Chie Omichi, Yuki Kaminishi, Hiroshi Kadotani et al. · Frontiers in Public Health · 2022 · 22 citations · Full text

Social Sciences, Behavioral Sciences, Psychology +16

Self-Isolation Due to COVID-19 Is Linked to Small One-Year Changes in Depression, Sleepiness, and Insomnia: Results from a Clinic for Sleep Disorders in Shiga Prefecture, Japan

Ayaka Ubara, Yukiyoshi Sumi, Kazuki Ito et al. · International Journal of Environmental Research and Public Health · 2020 · 21 citations · Full text

Medicine, Internal Medicine, Psychiatry +17

Prolonged Sleep Latency and Reduced REM Latency Are Associated with Depressive Symptoms in a Japanese Working Population

Chie Omichi, Hiroshi Kadotani, Yukiyoshi Sumi et al. · International Journal of Environmental Research and Public Health · 2022 · 21 citations · Full text

Medicine, Neuroscience, Psychiatry +17

Development and validation of the Japanese version of the Restorative Sleep Questionnaire in community samples

Rui Ibata, Yuta Takano, Naho Machida et al. · Sleep Medicine · 2023 · 13 citations

Medicine, Behavioral Sciences, Psychology +14