地域在住高齢者における情報通信機器（ICT）の利用時間と睡眠の関連

Association Between Use of Information and Communication Technology (ICT) and Sleep Among Community-Dwelling Older Adults

要旨

　目的：高齢者のICT利用時間と睡眠との関連を明らかにする．

　方法：65〜84歳を対象にICT利活用の実態と健康，生活状況に関する自記式質問紙調査を実施した．分析では1日のICT利用時間を1時間未満群と1時間以上群に分類した．従属変数は睡眠時間，入眠潜時とし，ロジスティックモデルを用いて多要因の影響を調整し，睡眠時間，入眠潜時に関するICT利用時間のオッズ比（OR）を算出した．

　結果：自記式質問調査に参加した324名のうち，ICT利用時間の回答が得られた202名を分析対象者とした．ICT利用時間が1時間以上（vs. 1時間未満）のものは，睡眠時間が7時間以上に関するORが0.49（p＝0.051）で境界域の有意性を示した．ICT利用時間と入眠潜時との関連は検出されなかった．

　結論：高齢者における1時間以上のICT利用により，睡眠時間が短くなる可能性が示唆された．

　Objective: To elucidate the relationship between ICT use and sleep patterns among older adults.

　Methods: A self-administered questionnaire survey on ICT usage, health, and living conditions was conducted among adults aged 65-84 years. In the analysis, daily ICT use was classified into two groups: those who used ICT for less than one hour and those who used it for more than one hour. The dependent variables were sleep duration and latency, and the odds ratios(ORs) of ICT use time for these variables were calculated after adjusting for the effects of multiple factors by using a logistic model.

　Results: Of the 324 participants who completed the questionnaire survey, 202 provided information on ICT use time and were included in the analysis. Those who used ICT for more than one hour(compared to less than one hour) showed a marginally significant OR of 0.49(p = 0.051) for more than seven hours of sleep. No association was found between time spent using ICT and sleep latency.

　Conclusion: ICT use exceeding one hour among older adults may be associated with decreased sleep duration.