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Sleep Disruption Noted on In-Home Sleep Study Night
Sleep Medicine; ePub 2016 Dec 22; Blackwell, et al
Among older men, there was sleep disruption on the polysomnography (sleep study; PSG) night, which may lead to an underestimation of sleep time, according to a recent study. The increase of sleep on the night after the PSG suggests data from the second monitoring may overestimate sleep. 778 older men (aged 76.2 ± 5.4 years) from a population-based study at 6 US centers underwent 1 night of in-home PSG. Actigraphy was gathered on the PSG night and 3 subsequent nights. Researchers found:
- On average, sleep on the PSG night was worse than the following night.
- Compared to sleep 2 and 3 nights later, sleep on the PSG night was significantly worse.
- Characteristics associated with greater sleep disruption on the PSG night included older age, higher apnea-hypopnea index, worse neuromuscular function, and more depressive symptoms.
- Minorities and men with excessive daytime sleepiness slept somewhat better on the PSG night.
Blackwell T, Paudel M, Redline S, Ancoli-Israel S, Stone KL, for the Osteoporitic Fractures in Men (MrOS) Study Group. A novel approach using actigraphy to quantify the level of disruption of sleep from in-home polysomnography: The MrOS Sleep Study. [Published online ahead of print December 22, 2016]. Sleep Medicine. doi:10.1016/j.sleep.2016.11.019.