Evaluating the Modified Patient Health Questionnaire-2 and Insomnia Severity Index-2 for Daily Digital Screening of Depression and Insomnia: Validation Study

Jae Won Oh   ¹ , PhD ;   Sun Mi Kim   ² , PhD ;   Deokjong Lee   ^{1, 3} , MD, PhD ;   Nak-Hoon Son   ⁴ , PhD ;   Jinsun Uh   ⁵ , BA ;   Ju Hong Yoon   ⁶ , PhD ;   Yukyung Choi   ⁷ , PhD ;   San Lee   ^{1, 3} , MD, MPH

¹ Department of Psychiatry, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Republic of Korea

² Department of Nursing, Andong Science College, Andong, Republic of Korea

³ Department of Psychiatry and the Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea

⁴ Department of Statistics, Keimyung University, Daegu, Republic of Korea

⁵ Mobigen Co, Ltd, Seongnam, Republic of Korea

⁶ Korea Electronics Technology Institute, Seongnam, Republic of Korea

⁷ Department of Intelligent Mechatronics Engineering, Sejong University, Seoul, Republic of Korea