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A Correlational Analysis of the Relationships among Intolerance of Uncertainty, Anxiety Sensitivity, Subjective Sleep Quality, and Insomnia Symptoms

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Department of Social and Developmental Psychology, Sapienza, University of Rome, 00185 Rome, Italy
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Department of Psychology, University of Regina, Regina, SK S4S 0A2, Canada
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Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, 67100 L’Aquila, Italy
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Department of Dynamic and Clinical Psychology, Sapienza, University of Rome, 00185 Rome, Italy
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Department of Psychology, Sapienza, University of Rome, 00185 Rome, Italy
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Authors to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2019, 16(18), 3253; https://doi.org/10.3390/ijerph16183253
Received: 24 July 2019 / Revised: 29 August 2019 / Accepted: 31 August 2019 / Published: 5 September 2019
(This article belongs to the Special Issue Cognitive and Emotional Effects of Sleep Deprivation)
In this study, we used structural equation modeling to investigate the interplay among Intolerance of Uncertainty (IU), Anxiety Sensitivity (AS), and sleep problems. Three hundred undergraduate students completed the Intolerance of Uncertainty Scale, the Intolerance of Uncertainty Inventory, the Anxiety Sensitivity Index, the Beck Depression Inventory, the State-Trait Anxiety Inventory, the Pittsburgh Sleep Quality Index and the Insomnia Severity Index. 68% and 40% of the students reported poor sleep quality or sub-threshold insomnia problems, respectively. Depression and anxiety levels were above the cut-off for about one-fourth of the participants. Structural equation modeling revealed that IU was strongly associated with AS, in turn influencing both insomnia severity and sleep quality via depression and anxiety. Significant indirect effects revealed that an anxious pathway was more strongly associated with insomnia severity, while a depression pathway was more relevant for worsening the quality of sleep. We discussed the results in the frameworks of cognitive models of insomnia. Viewing AS and IU as antecedents of sleep problems and assigning to AS a pivotal role, our study suggested indications for clinical interventions on a population at risk for sleep disorders. View Full-Text
Keywords: intolerance of uncertainty; anxiety sensitivity; sleep quality; insomnia severity; mediation analyses; depression; anxiety intolerance of uncertainty; anxiety sensitivity; sleep quality; insomnia severity; mediation analyses; depression; anxiety
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Lauriola, M.; Carleton, R.N.; Tempesta, D.; Calanna, P.; Socci, V.; Mosca, O.; Salfi, F.; De Gennaro, L.; Ferrara, M. A Correlational Analysis of the Relationships among Intolerance of Uncertainty, Anxiety Sensitivity, Subjective Sleep Quality, and Insomnia Symptoms. Int. J. Environ. Res. Public Health 2019, 16, 3253.

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