• G Camelia Adams and Lachlan A McWilliams.
• Department of Psychiatry, University of Saskatchewan, Saskatoon, Canada.
• J Psychosom Res. 2015 Jul 1; 79 (1): 37-42.

ObjectiveRecent research with small non-clinical and clinical samples suggests a positive association between attachment insecurity and sleep disturbances. The present study extends this line of research by exploring this relationship in a large sample of the U.S. population and by statistically adjusting for health conditions and psychiatric disorders as potential confounds.MethodThe data used were from the National Comorbidity Survey Replication (N=5692). The main interview consisted of the Composite International Diagnostic Interview used to assess psychiatric diagnoses. Ratings of three adult attachment styles (viz., secure, avoidant, and anxious) were obtained along with self-reports of health conditions and four sleep disturbances (viz., difficulty initiating sleep, difficulty maintaining sleep, early morning awakening, and daytime sleepiness).ResultsBivariate logistic regression analyses indicated that ratings of secure attachment were negatively associated with each sleep disturbance and ratings of insecure attachment were positively associated with each sleep disturbance. Multivariate logistic regression analyses were used to examine associations between the attachment ratings and sleep disturbances while statistically controlling for sociodemographic variables, the presence of a health condition, and psychiatric disorders (viz., depressive disorders, bipolar disorders, anxiety disorders, alcohol/substance disorders, and attention deficit disorder). With one exception, the insecure attachment ratings continued to be positively associated with sleep disturbances.ConclusionThe findings demonstrate that attachment insecurity is related to sleep disturbances independent of health conditions and concurrent psychiatric disorders. Research aimed at delineating the mechanisms responsible for these associations is warranted.Copyright © 2014 Elsevier Inc. All rights reserved.

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