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Centre for Policy on Ageing | |
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Poor sleep is associated with impaired cognitive function in older women
— the Study of Osteoporotic Fractures | | Author(s) | Terri Blackwell, Kristine Yaffe, Sonia Ancoli-Israel |
| Journal title | Journals of Gerontology: Series A, Biological Sciences and Medical Sciences, vol 61A, no 4, April 2006 |
| Pages | pp 405-410 |
| Source | http://www.geron.org |
| Keywords | Older women ; Sleep disorders ; Cognitive impairment ; Osteoporosis ; Fractures ; Correlation ; United States of America. |
| Annotation | The Study of Osteoporotic Fractures was conducted between 2002 and 2004 with 2932 women aged 65+ (mean age 83.5) in four US areas: Baltimore, Maryland; Minneapolis, Minnesota; Portland, Oregon; and Monongahela Valley, Pennsylvania. Cognitive impairment was measured by the Mini Mental State Examination (MMSE) and Trail Making B Test. Sleep parameters were measured objectively using actigraphy, included real sleep time, sleep efficiency, sleep latency, wake after sleep onset (WASO) and total nap time. Higher sleep latency was associated with higher risk of cognitive impairment. Women who napped more than 2 hours a day had a higher risk. There was no significant relationship for real sleep time. Objectively measured disturbed sleep was consistently related to poorer cognition, whereas total sleep time was not. This finding may suggest that it is disturbance of sleep rather than quantity that affects cognition. (RH). |
| Accession Number | CPA-070504234 A |
| Classmark | BD: CTS: E4: CLO: CUF: 49: 7T |
Data © Centre for Policy on Ageing |
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| ...from the Ageinfo database published by Centre for Policy on Ageing. |
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