Division of Gerontology Research, Institute of Population Health Sciences, National Health Research Institutes, 3 Yuanqu Street, Taipei 115, Taiwan.
J Gerontol A Biol Sci Med Sci. 2010 Feb;65(2):190-6. doi: 10.1093/gerona/glp143. Epub 2009 Sep 30.
Prior studies have shown that sleep disturbances are related to falling and its risk factors, such as poorer cognition, depression, and physical function. However, little is know about the gender-specific associations between falling and sleep duration.
Study participants were from the annual Health Examination for the Elderly Program in the National Taiwan University Hospital (135 women and 121 men, mean age 72.2 years). Self-reported sleep duration was grouped into three categories: less than 5, 5-7.9, and 8 or more hours. Short sleep duration was defined as sleep duration less than 5 hours. Falling during the previous 12 months was ascertained by self-report questionnaire. The association of sleep duration with falling was examined by using multiple logistic regression. We approximated risk ratio (RR) of falls from the adjusted odds ratio (OR) after correction of falls incidence in the previous year.
Sleep duration was inversely associated with falling among women. After adjusting for multiple confounding factors including use of antihypertensives and psychotropic medications, the OR of falls for each hour decrease in sleep duration was 1.95 (95% confidence interval [CI] 1.24-3.06). Moreover, women with sleep deprivation had a greater odds of falls within the last year than those with longer sleep durations. The estimated RR of falls comparing women with short sleep duration (sleep <5 hours) with those without was 2.98 (95% CI 1.32-4.62). We did not find an association among men.
Sleep deprivation is independently associated with falls in women but not in men. Short sleep duration may be an indicator to identify women at risk for falling.
先前的研究表明，睡眠障碍与跌倒及其危险因素有关，如认知能力下降、抑郁和身体功能下降。然而，关于跌倒与睡眠时间之间的性别特异性关联知之甚少。
研究参与者来自国立台湾大学医院的年度老年健康体检计划（女性 135 人，男性 121 人，平均年龄 72.2 岁）。自我报告的睡眠时间分为三组：少于 5 小时、5-7.9 小时和 8 小时或更长时间。短睡眠时间定义为睡眠时间少于 5 小时。过去 12 个月内跌倒情况通过自我报告问卷确定。使用多变量逻辑回归检查睡眠时间与跌倒的关系。我们通过校正前一年的跌倒发生率来近似风险比（RR）。
睡眠时间与女性跌倒呈负相关。在调整了多种混杂因素（包括使用抗高血压药和精神药物）后，睡眠时间每减少 1 小时，跌倒的 OR 为 1.95（95%CI 1.24-3.06）。此外，与睡眠时间较长的女性相比，睡眠不足的女性在过去一年中跌倒的可能性更大。与无睡眠障碍的女性相比，睡眠时间较短（睡眠<5 小时）的女性跌倒的估计 RR 为 2.98（95%CI 1.32-4.62）。我们没有发现男性之间的关联。
睡眠剥夺与女性跌倒独立相关，但与男性无关。短睡眠时间可能是识别女性跌倒风险的指标。
