Buysse D J, Reynolds C F, Monk T H, Hoch C C, Yeager A L, Kupfer D J
Department of Psychiatry, University of Pittsburgh School of Medicine, Pennsylvania.
Sleep. 1991 Aug;14(4):331-8.
Subjective sleep quality deteriorates with aging, but the extent to which this is a product of age itself, as opposed to the medical or psychiatric problems associated with aging, has not been carefully studied. To investigate this issue, we examined the subjective sleep quality of 44 healthy subjects over 80 years of age (20 men, 24 women), and 35 healthy subjects [corrected] between the ages of 20 and 30 (23 men, 12 women) using the Pittsburgh Sleep Quality Index (PSQI). All subjects underwent rigorous medical and psychiatric evaluations to verify that they were in excellent physical and psychological health. Significant age effects were noted for the global PSQI score and several PSQI component scores, but overall sleep quality for the majority (68.1%) of 80-yr-olds fell within a categorically defined range for "good" sleepers. Measures of habitual sleep quality did not correlate strongly with most polysomnographic sleep measures, number of medications used or circadian measures in elderly subjects. These results show that subjective sleep quality does deteriorate in the healthy elderly, but not to the level seen in patients with sleep disorders. Extremely healthy elderly subjects appear to adapt in their perception of objectively disturbed sleep.
主观睡眠质量会随着年龄增长而恶化，但这在多大程度上是年龄本身的产物，而非与衰老相关的医学或精神问题，尚未得到仔细研究。为了调查这个问题，我们使用匹兹堡睡眠质量指数（PSQI）对44名80岁以上的健康受试者（20名男性，24名女性）和35名年龄在20至30岁之间的健康受试者（23名男性，12名女性）的主观睡眠质量进行了检查。所有受试者都接受了严格的医学和精神评估，以确认他们的身体和心理健康状况良好。在PSQI总分及几个PSQI分项得分上发现了显著的年龄效应，但80岁人群中大多数（68.1%）的总体睡眠质量落在明确界定的“良好”睡眠者范围内。在老年受试者中，习惯性睡眠质量的测量结果与大多数多导睡眠图睡眠测量结果、所用药物数量或昼夜节律测量结果之间没有很强的相关性。这些结果表明，健康老年人的主观睡眠质量确实会下降，但未降至睡眠障碍患者的水平。极其健康的老年受试者似乎会在其对客观上受干扰睡眠的感知中进行适应。
