File Download
  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Short or long sleep duration is associated with memory impairment in older chinese: The Guangzhou Biobank Cohort Study

TitleShort or long sleep duration is associated with memory impairment in older chinese: The Guangzhou Biobank Cohort Study
Authors
KeywordsInsomnia
Memory impairment
Napping
Sleep
Sleep duration
Issue Date2011
PublisherThe American Academy of Sleep Medicine. The Journal's web site is located at http://www.journalsleep.org
Citation
Sleep, 2011, v. 34 n. 5, p. 575-580 How to Cite?
Abstract
Study Objectives: To examine the association between sleep-related factors and memory impairment. Design: Cross-sectional study Setting: Community-based study in Guangzhou, China. Participants: 28,670 older Chinese (20,776 women and 7,894 men) aged 50 to 85 years. Measurements and Results: Demographic and socioeconomic data, sleep-related factors, and cognitive function were collected by face-to-face interview. Potential confounders, such as employment and occupational status, smoking, alcohol and tea use, physical activity, self-rated health, anthropometry, blood pressure, and fasting plasma glucose and lipids were measured. After adjusting for multiple potential confounders, an inverted U-shaped association between sleep duration and delayed word recall test (DWRT) score, a validated measure of memory impairment, was found, with 7 to 8 h of habitual sleep duration showing the highest score (P-values for trend from 3 to 7 h and from 7 to ≥ 10 h were all ≤ 0.001). Compared to sleep duration of 7 h, the adjusted odds ratio for memory impairment from the sleep duration of 3 to 4 or ≥ 10 h was 1.29 (95% confidence interval 1.07-1.56) and 1.52 (1.25-1.86), respectively. Subjects with daily napping, morning tiredness, or insomnia had significantly lower DWRT scores than those without (P ranged from < 0.001 to 0.01).Conclusions: Short or long sleep duration was an important sleep-related factor independently associated with memory impairment and may be a useful marker for increased risk of cognitive impairment in older people. © Copyright 2011 Associated Professional Sleep Societies, LLC.
Persistent Identifierhttp://hdl.handle.net/10722/134493
ISSN
2013 Impact Factor: 5.062
2013 SCImago Journal Rankings: 2.602
PubMed Central ID
ISI Accession Number ID
References

 

Author Affiliations
  1. The University of Hong Kong
  2. University of Birmingham
  3. Guangzhou No. 12 Hospital
DC FieldValueLanguage
dc.contributor.authorXu, Len_HK
dc.contributor.authorJiang, CQen_HK
dc.contributor.authorLam, THen_HK
dc.contributor.authorLiu, Ben_HK
dc.contributor.authorJin, YLen_HK
dc.contributor.authorZhu, Ten_HK
dc.contributor.authorZhang, WSen_HK
dc.contributor.authorCheng, KKen_HK
dc.contributor.authorThomas, GNen_HK
dc.date.accessioned2011-06-17T09:22:12Z-
dc.date.available2011-06-17T09:22:12Z-
dc.date.issued2011en_HK
dc.identifier.citationSleep, 2011, v. 34 n. 5, p. 575-580en_HK
dc.identifier.issn0161-8105en_HK
dc.identifier.urihttp://hdl.handle.net/10722/134493-
dc.description.abstractStudy Objectives: To examine the association between sleep-related factors and memory impairment. Design: Cross-sectional study Setting: Community-based study in Guangzhou, China. Participants: 28,670 older Chinese (20,776 women and 7,894 men) aged 50 to 85 years. Measurements and Results: Demographic and socioeconomic data, sleep-related factors, and cognitive function were collected by face-to-face interview. Potential confounders, such as employment and occupational status, smoking, alcohol and tea use, physical activity, self-rated health, anthropometry, blood pressure, and fasting plasma glucose and lipids were measured. After adjusting for multiple potential confounders, an inverted U-shaped association between sleep duration and delayed word recall test (DWRT) score, a validated measure of memory impairment, was found, with 7 to 8 h of habitual sleep duration showing the highest score (P-values for trend from 3 to 7 h and from 7 to ≥ 10 h were all ≤ 0.001). Compared to sleep duration of 7 h, the adjusted odds ratio for memory impairment from the sleep duration of 3 to 4 or ≥ 10 h was 1.29 (95% confidence interval 1.07-1.56) and 1.52 (1.25-1.86), respectively. Subjects with daily napping, morning tiredness, or insomnia had significantly lower DWRT scores than those without (P ranged from < 0.001 to 0.01).Conclusions: Short or long sleep duration was an important sleep-related factor independently associated with memory impairment and may be a useful marker for increased risk of cognitive impairment in older people. © Copyright 2011 Associated Professional Sleep Societies, LLC.en_HK
dc.languageengen_US
dc.publisherThe American Academy of Sleep Medicine. The Journal's web site is located at http://www.journalsleep.orgen_HK
dc.relation.ispartofSleepen_HK
dc.subjectInsomniaen_HK
dc.subjectMemory impairmenten_HK
dc.subjectNappingen_HK
dc.subjectSleepen_HK
dc.subjectSleep durationen_HK
dc.titleShort or long sleep duration is associated with memory impairment in older chinese: The Guangzhou Biobank Cohort Studyen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0161-8105&volume=34&issue=5&spage=575&epage=580&date=2011&atitle=Short+or+long+sleep+duration+is+associated+with+memory+impairment+in+older+chinese:+the+Guangzhou+Biobank+Cohort+Study-
dc.identifier.emailLam, TH:hrmrlth@hkucc.hku.hken_HK
dc.identifier.authorityLam, TH=rp00326en_HK
dc.description.naturelink_to_OA_fulltext-
dc.identifier.pmid21532950en_HK
dc.identifier.pmcidPMC3079936-
dc.identifier.scopuseid_2-s2.0-79955555744en_HK
dc.identifier.hkuros185482en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79955555744&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume34en_HK
dc.identifier.issue5en_HK
dc.identifier.spage575en_HK
dc.identifier.epage580en_HK
dc.identifier.isiWOS:000291145800007-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridXu, L=35180837300en_HK
dc.identifier.scopusauthoridJiang, CQ=10639500500en_HK
dc.identifier.scopusauthoridLam, TH=7202522876en_HK
dc.identifier.scopusauthoridLiu, B=36079151900en_HK
dc.identifier.scopusauthoridJin, YL=35558481400en_HK
dc.identifier.scopusauthoridZhu, T=50462853100en_HK
dc.identifier.scopusauthoridZhang, WS=35180743500en_HK
dc.identifier.scopusauthoridCheng, KK=7402997800en_HK
dc.identifier.scopusauthoridThomas, GN=35465269900en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats