Association Between Sleep Duration and Functional Disability in Inpatient Stroke Rehabilitation: A Pilot Observational Study.
Cierra Williams-Cooke, Elise Watts, Jonathan Bonnett and 2 others
PMID 34589700WHAT IT FOUND
Sleep duration and sleep efficiency were not shown to be linked to functional independence at discharge in stroke inpatient rehabilitation.
Poor sleep was common, but the study did not show sleep changes affected function.
Key findings
01There were no significant differences between good sleepers and poor sleepers in demographics, stroke variables, or functional ability at admission or discharge.
02Sleep duration at discharge, sleep efficiency at admission, and sleep efficiency at discharge were not significant predictors of Functional Independence Measure scores at discharge (P = .916, P = .134, P = .364).
03Sleep duration at admission approached statistical significance (P = .059) and explained 9.8% of the variance in Functional Independence Measure score at discharge.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTs
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What it does not show
The study was a pilot with a small sample, and 37 of 47 enrolled participants were analyzed. All participants came from one urban inpatient rehabilitation facility, so results may not apply to other settings. Sleep before stroke was not measured, so the study cannot tell whether the stroke or the rehabilitation environment caused the sleep changes. Functional ability was measured with one outcome, the Functional Independence Measure, and a different measure, such as cognition, may have been more sensitive.
The easy way to misread this
Do not conclude that poor sleep caused worse function or that treating sleep will improve recovery. The study was observational, and sleep measures did not significantly predict discharge Functional Independence Measure scores; sleep duration at admission only approached significance (P = .059).