睡眠障害のある高齢者における脳波測定ヘッドバンドまたはアクチグラフィーとポリグラフ検査との性能比較

We assessed the performance of an electroencephalography-measuring headband (HB) or actigraphy (ACT) compared with polysomnography (PSG) in older adults with sleep disturbances.

Sixty-one older adults reporting insomnia and/or daytime sleepiness wore the HB for up to seven nights, actigraphy for seven days and nights, and completed an in-home PSG. We compared total sleep time (TST), wake after sleep onset (WASO), sleep onset latency (SOL), and sleep efficiency (SE) from all devices on the PSG night. For HB-PSG, we compared time in light, deep, and rapid eye movement sleep. For all comparisons, we calculated absolute differences and intraclass correlation coefficients (ICCs). We also evaluated the performance of the HB among the poorest sleepers (e.g., severe sleep apnea or insomnia).

Average age was 72.6[SD=6.5] years, 62.3% were female, and 77.1% were non-Hispanic White. For HB-PSG, we found good agreement for TST, WASO, and SE (ICCs ranging 0.82-0.91), while SOL and sleep stages were lower (ICCs 0.44-0.66). For ACT-PSG, we found moderate agreement for TST (ICC 0.73) and poor agreement for WASO, SOL, and SE (ICCs <0.50). For the poorest sleepers, HB-PSG showed good to excellent agreement for TST and WASO (ICCs 0.56-0.91), while ACT-PSG showed lower levels of agreement (ICCs 0.55-0.80 for TST and <0.59 for WASO). On average, participants wore the HB for 6.5 [0.8] nights and usability was rated highly.

The HB outperformed ACT, including among the poorest sleepers. Devices like the HB are accurate, feasible, and could advance sleep health in older adults.