Short-Term Stability of Sleep and Heart Rate Variability in Good Sleepers and Patients with Insomnia: For Some Measures, One Night is Enough
Population
76 adults, comprising 54 with primary insomnia and 22 good sleeper controls
Design
Cohort
Authors
Discussion
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Member takes
Implication
Supports single-night HRV/QEEG reliability in insomnia; leaves open multi-night needs for visual sleep staging.
Structured PICO
P
Population
76 adults, comprising 54 with primary insomnia and 22 good sleeper controls
I
Intervention
Sleep laboratory assessment across multiple nights including polysomnography, quantitative EEG (QEEG), and heart rate variability (HRV) analysis
O
Outcome
Short-term stability (measured by intra-class correlation coefficients) of visually scored sleep outcomes, QEEG power, and heart rate variabilitysurrogate
One night of sleep data is sufficient to derive reliable estimates of QEEG and HRV, but not most visually scored sleep architecture outcomes, in both good sleepers and patients with insomnia.
Cite This Study
Israel et al. (2012) studied this question.