@article{ref1,
title="Insomnia symptoms, depressive symptoms, and suicide ideation in Japanese white-collar employees",
journal="International journal of behavioral medicine",
year="2014",
author="Kato, Tsukasa",
volume="21",
number="3",
pages="506-510",
abstract="BACKGROUND: Although poor sleep quality is the most common subjective complaint of workers and is a risk factor for depressive symptoms and suicide, researchers have not yet provided definitive links between insomnia symptoms, depressive symptoms, and suicide. PURPOSE: In our mediation model, we hypothesized relationships among insomnia symptoms, depressive symptoms, and suicide ideation. The purpose here was to use structural equation modeling (SEM) to test our mediation model. METHOD: Three hundred forty-three Japanese full-time white-collar workers completed the measures to assess insomnia symptoms, depressive symptoms, and suicide ideation over an approximately 3-month period. RESULTS: A SEM analysis revealed that insomnia symptoms were positively and significantly associated with depressive symptoms, and depressive symptoms were positively and significantly associated with suicide ideation. Two tests showed a significant indirect effect of insomnia symptoms on suicide ideation through depressive symptoms. Thus, these results supported our mediation model. CONCLUSION: We conclude that insomnia symptoms were positively associated with suicidal ideation, though this relation was accounted for by depressive symptoms in Japanese white-collar workers.<p /> <p>Language: en</p>",
language="en",
issn="1070-5503",
doi="10.1007/s12529-013-9364-4",
url="http://dx.doi.org/10.1007/s12529-013-9364-4"
}