St George, RJ and Delbaere, K and Williams, P and Lord, SR, Sleep Quality and Falls in Older People Living in Self- and Assisted-Care Villages, Gerontology, 55, (2) pp. 162-168. ISSN 0304-324X (2009) [Refereed Article]
Copyright 2008 S. Karger AG, Basel
Background: Older people often experience unusual sleeping patterns and a poor quality of night-time sleep. Insufficient sleep has potential effects on cognition and physical functioning and therefore may increase the incidence of falls in older people.
Objectives: To determine the extent to which a range of physiological, psychological and health-related factors predict night-time sleep quality of older people living in self-care and assisted-care, and whether poor sleep quality is a risk factor for falls.
Methods: 572 people, 81 men and 491 women (mean age 79.7 years, SD 6.4), recruited from self-care retirement villages and assisted-care hostels participated in the cross-sectional study with a subgroup of 169 followed up for falls for 1 year. The main outcome measures were sleep quality and prospective falls.
Results: Approximately half of the sample rated their sleep quality as poor or fair. Many measures of health, medication use and mood were significantly associated with ratings of poor night-time sleep quality. Multiple regression analyses revealed poor circulation, use of psychotropic and diuretic medications, negative affect, pain, not having a friend in the village, lower fitness levels and daytime napping were significant and independent predictors of night-time sleep quality in both residential care groups. Napping daily was reported by 28% of the self-care group and 37% of the assisted-care group. Residents across both care levels who napped >30 min during the day, or reported <6 h sleep at night, were three times more likely to suffer multiple falls in the follow-up year when adjusting for health, medication and activity measures.
Conclusions: Sleep disturbances were common and associated with a variety of psychological, physiological, health and lifestyle factors. Long daytime naps and short night-time sleep periods were associated with an increased risk of falls.
|Item Type:||Refereed Article|
|Keywords:||Sleep, Falls, Ageing|
|Research Division:||Medical and Health Sciences|
|Research Group:||Clinical Sciences|
|Research Field:||Geriatrics and Gerontology|
|Objective Group:||Clinical Health (Organs, Diseases and Abnormal Conditions)|
|Objective Field:||Neurodegenerative Disorders Related to Ageing|
|Author:||St George, RJ (Dr Rebecca St George)|
|Web of Science® Times Cited:||21|
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