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Psychometric Characteristics of the Insomnia Severity Index in Veterans With History of Traumatic Brain Injury.


ABSTRACT: OBJECTIVE/BACKGROUND:The Insomnia Severity Index (ISI) is a widely used self-report measure of insomnia symptoms. However, to date this measure has not been validated or well-characterized in veterans who have experienced traumatic brain injury (TBI). This study assessed the psychometric properties and convergent, divergent, construct, and discriminate validity of the ISI in veterans with a history of TBI. PARTICIPANTS:Eighty-three veterans with history of TBI were seen in the VA San Diego Healthcare System as part of a research protocol. METHODS:Measures included the ISI, Pittsburgh Sleep Quality Index (PSQI), Epworth Sleepiness Scale, Neurobehavioral Symptom Inventory, Beck Depression Inventory-II, Beck Anxiety Inventory, and PTSD Checklist-Military Version. RESULTS:The ISI demonstrated moderate to strong or excellent convergent and divergent validity. A principal component analysis indicated a single construct with excellent internal consistency (Cronbach's alpha = 0.92). In exploratory analyses, the ISI discriminated well between those with (73%) and without (27%) sleep disturbance based on the PSQI. CONCLUSIONS:Results from this study indicate validity of the ISI in assessing insomnia in veterans with history of TBI and suggest a cutoff score not dissimilar from non-TBI populations. Findings from this study can help inform clinical applicability of the ISI, as well as future studies of insomnia in TBI.

SUBMITTER: Kaufmann CN 

PROVIDER: S-EPMC5740012 | biostudies-literature | 2019 Jan-Feb

REPOSITORIES: biostudies-literature

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Psychometric Characteristics of the Insomnia Severity Index in Veterans With History of Traumatic Brain Injury.

Kaufmann Christopher N CN   Orff Henry J HJ   Moore Raeanne C RC   Delano-Wood Lisa L   Depp Colin A CA   Schiehser Dawn M DM  

Behavioral sleep medicine 20170118 1


<h4>Objective/background</h4>The Insomnia Severity Index (ISI) is a widely used self-report measure of insomnia symptoms. However, to date this measure has not been validated or well-characterized in veterans who have experienced traumatic brain injury (TBI). This study assessed the psychometric properties and convergent, divergent, construct, and discriminate validity of the ISI in veterans with a history of TBI.<h4>Participants</h4>Eighty-three veterans with history of TBI were seen in the VA  ...[more]

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