0420 Disassembling Insomnia Symptoms and their Associations with Depressive Symptoms in a Community Sample: The Differential Role of Sleep Symptoms, Daytime Symptoms, and Perception Symptoms of Insomnia. (12th April 2019)

• Record Type: Journal Article
• Authors: JI, XiaoWen; Bastien, Celyne H; Ellis, Jason G; Hale, Lauren; Grandner, Michael A
• Is Part Of: Sleep. Volume 42(2019)Supplement 1
• Page Start: A170
• Page End: A170
• Publication Date: 2019-04-12
• Subjects: Sleep -- Physiological aspects -- Periodicals; Sleep disorders -- Periodicals; Sommeil -- Aspect physiologique -- Périodiques; Sommeil, Troubles du -- Périodiques; Sleep disorders; Sleep -- Physiological aspects; Sleep -- physiological aspects; Sleep Wake Disorders; Psychophysiology; Electronic journals; Periodicals; 616.8498
• DOI: 10.1093/sleep/zsz067.419
• Languages: English
• ISSNs: 0161-8105

Abstract

Abstract: Introduction: Insomnia and depression are closely related. However, few studies have investigated whether certain insomnia symptoms differentially relate to certain depressive symptoms. The present study aimed to examine relationship between three types of insomnia symptoms (sleep symptoms, daytime symptoms, and perception symptoms) and specific symptoms of depression. Methods: Participants were 1003 community-based adults aged 22-60 from the Philadelphia area who participated in the Sleep and Healthy Activity, Diet, Environment, and Socialization (SHADES) study. Insomnia symptoms were represented by scores of sleep symptoms, daytime symptoms and perception symptoms, derived from the Insomnia Severity Index (ISI). Depression symptoms were assessed with the items of the Patient Health Questionnaire 9 (PHQ-9). Results: A Confirmatory Factor Analysis (CFA) supported the three-factor model based on ISI data. Binary logistic regressions examined independent associations between the three insomnia symptom types and individual depression symptoms. Sleep symptoms were more strongly associated with physiological aspects of depressive symptoms (appetite symptoms, psychomotor symptoms, and suicidal ideation; OR ranged from 1.12 to 1.20). The daytime symptoms, on the other hand, were significantly associated with almost all depressive symptoms, except for appetite. Moreover, daytime symptoms were exclusively related to cognitive symptoms of depression (e.g., trouble concentrating; OR=1.23, 95% CI: 1.16-1.46 ). The perception symptoms were independently associated with mood symptoms, tiredness, appetite, and judgment of oneself as a failure (OR ranged from 1.21 to 1.54), but not with psychomotor, cognitive and suicidal ideation symptoms. Conclusion: Daytime symptoms and perception symptoms of insomnia were more strongly associated with a full range of depressive symptoms than sleep symptoms. The sleep symptoms were mainly associated with physiological symptoms of depression, implicating more biological mechanisms. Further research is needed regarding how types of insomnia symptoms differentially related to multiple health consequences. Support (If Any): None