Sleep Disruption Persists and Relates to Memory Disability After Traumatic Brain Injury: A Cross-Sectional Study of Adults in the Chronic Phase of Injury.
Emily L Morrow, Melissa C Duff
PMID 38758100WHAT IT FOUND
Adults with chronic traumatic brain injury reported significantly poorer sleep quality and more nighttime disturbances than matched non-injured peers.
This sleep disruption persisted years after injury and correlated strongly with self-reported memory failures in daily life.
Key findings
01Participants with chronic TBI had significantly higher Pittsburgh Sleep Quality Index global scores and reported poorer sleep quality, more nighttime disturbances, greater use of sleep medication, and more daytime dysfunction than matched non-injured controls.
02Sleep disruption was significantly correlated with self-reported memory failures in daily life within the TBI group.
03There was no significant difference in daytime sleepiness between the TBI group and non-injured controls.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
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What it does not show
The study is cross-sectional, so it cannot determine if sleep disruption causes memory problems, if memory problems cause sleep disruption, or if both result from the same brain injury. All data were self-reported. While previous work supports the accuracy of these reports, memory dysfunction in the TBI group could still affect how they recall sleep history or symptoms. The groups were matched on age, sex, and education but not on other factors that affect sleep, such as medications, lifestyle, or occupation. The study only included adults with moderate-severe TBI, so findings may not apply to those with mild TBI or concussions.
Declared interests
The authors declared no conflicts of interest. The study was supported by the National Institutes of Health.
The easy way to misread this
Do not assume that asking about sleep duration or daytime sleepiness captures sleep problems in chronic TBI. This study found no difference in daytime sleepiness between groups, yet sleep quality and nighttime disturbances were significantly worse in the TBI group and linked to memory complaints.