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Psychiatry Investig > Volume 19(4); 2022 > Article |
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Availability of Data and Material
The datasets generated or analyzed during the study are available from the corresponding author on reasonable request.
Conflicts of Interest
Seockhoon Chung, a contributing editor of the Psychiatry Investigation, was not involved in the editorial evaluation or decision to publish this article. All remaining authors have declared no conflicts of interest.
Author Contributions
Conceptualization: Seockhoon Chung, Changnam Kim, Kikyoung Yi. Data curation: Seockhoon Chung, C. Hyung Keun Park, Joohee Lee, Inn-Kyu Cho, Kyumin Kim. Formal analysis: Seockhoon Chung. Funding acquisition: C. Hyung Keun Park. Writing—original draft: Joohee Lee, Seockhoon Chung. Writing—review & editing: all authors.
Funding Statement
This study was supported by the Institute for Information & communication Technology Planning & evaluation (IITP) grant funded by the Korea government (MIST) [2021-0-01521, Development of patient-specific cognitive behavioral therapy (CBT-I) digital treatment technology to improve insomnia].
Variables | Age | ISI | GSES | DBS-2 | PHQ-9 | SAVE-6 | Desired TST | Desired TIB | DBST |
---|---|---|---|---|---|---|---|---|---|
Age | 1.000 | ||||||||
ISI | -0.17** | 1.000 | |||||||
GSES | -0.15** | 0.68** | 1.000 | ||||||
DBS-2 | -0.12* | 0.36** | 0.31** | 1.000 | |||||
PHQ-9 | -0.23** | 0.53** | 0.57** | 0.29** | 1.000 | ||||
SAVE-6 | -0.02 | 0.31** | 0.30** | 0.31** | 0.32* | 1.000 | |||
Desired TST | -0.25** | -0.05 | -0.003 | 0.10* | 0.05 | 0.06 | 1.000 | ||
Desired TIB | -0.17** | 0.14** | 0.13* | 0.12* | 0.15** | 0.16** | 0.33** | 1.000 | |
DBST index | 0.06 | 0.17** | 0.11* | 0.02 | 0.09 | 0.10 | -0.55** | 0.61** | 1.000 |
ISI, insomnia severity index; GSES, Glasgow Sleep Effort Scale; DBS-2, Dysfunctional Beliefs about Sleep-2 items; PHQ-9, Patient Health Questionnaire-9 items; SAVE-6, Stress and Anxiety to Viral Epidemics-6 items; TST, total sleep time; TIB, time in bed; DBST, discrepancy between desired time in bed and desired total sleep time
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