Article

Sleep disturbances are common following traumatic brain injury (TBI).
The Pittsburgh Sleep Quality Index (PSQI) is a widely used measure of sleep
quality that has been used in numerous populations. Although this measure has
been used in TBI research, there are few studies examining the psychometric
properties in this population. OBJECTIVE: The current study examined the factor
structure of the PSQI in a sample of persons with TBI and tested the one, two,
and three factor models derived from previous studies in other populations.
METHODS: A telephone interview was conducted with 243 individuals who had
sustained a TBI. All participants were approximately one year post-injury. Factor
analyses were conducted (exploratory and confirmatory) to examine the factor
structure of the PSQI. RESULTS: Results confirm the fit of models previously
tested in the literature but also reveal an alternative conceptualization of
sleep containing both qualitative and quantitative factors. CONCLUSIONS: While
the 3-factor model best fits the data in this TBI sample, the use of a 2-factor
model is acceptable and may be more clinically relevant due to the grouping of
time-related variables that could provide important information with regard to
circadian rhythm disorders.

Langue : ANGLAIS