Title: Case-control study of subjective and objective differences in sleep patterns in older adults with insomnia symptoms
Abstract: Journal of Sleep ResearchVolume 20, Issue 3 p. 434-444 Insomnia Case–control study of subjective and objective differences in sleep patterns in older adults with insomnia symptoms NALAKA S. GOONERATNE, NALAKA S. GOONERATNE Division of Geriatric Medicine, Department of Medicine, University of Pennsylvania Center for Sleep and Respiratory Neurobiology and Division of Sleep Medicine, School of Medicine, University of PennsylvaniaSearch for more papers by this authorSCARLETT L. BELLAMY, SCARLETT L. BELLAMY Center for Clinical Epidemiology and Biostatistics, School of Medicine, University of PennsylvaniaSearch for more papers by this authorFRANCES PACK, FRANCES PACK Center for Sleep and Respiratory Neurobiology and Division of Sleep Medicine, School of Medicine, University of PennsylvaniaSearch for more papers by this authorBETH STALEY, BETH STALEY Center for Sleep and Respiratory Neurobiology and Division of Sleep Medicine, School of Medicine, University of PennsylvaniaSearch for more papers by this authorSHARON SCHUTTE-RODIN, SHARON SCHUTTE-RODIN Center for Sleep and Respiratory Neurobiology and Division of Sleep Medicine, School of Medicine, University of Pennsylvania Division of Sleep Medicine, Department of Medicine, University of PennsylvaniaSearch for more papers by this authorDAVID F. DINGES, DAVID F. DINGES Department of Psychiatry, University of Pennsylvania School of Medicine, Philadelphia, PA, USASearch for more papers by this authorALLAN I. PACK, ALLAN I. PACK Center for Sleep and Respiratory Neurobiology and Division of Sleep Medicine, School of Medicine, University of Pennsylvania Division of Sleep Medicine, Department of Medicine, University of PennsylvaniaSearch for more papers by this author NALAKA S. GOONERATNE, NALAKA S. GOONERATNE Division of Geriatric Medicine, Department of Medicine, University of Pennsylvania Center for Sleep and Respiratory Neurobiology and Division of Sleep Medicine, School of Medicine, University of PennsylvaniaSearch for more papers by this authorSCARLETT L. BELLAMY, SCARLETT L. BELLAMY Center for Clinical Epidemiology and Biostatistics, School of Medicine, University of PennsylvaniaSearch for more papers by this authorFRANCES PACK, FRANCES PACK Center for Sleep and Respiratory Neurobiology and Division of Sleep Medicine, School of Medicine, University of PennsylvaniaSearch for more papers by this authorBETH STALEY, BETH STALEY Center for Sleep and Respiratory Neurobiology and Division of Sleep Medicine, School of Medicine, University of PennsylvaniaSearch for more papers by this authorSHARON SCHUTTE-RODIN, SHARON SCHUTTE-RODIN Center for Sleep and Respiratory Neurobiology and Division of Sleep Medicine, School of Medicine, University of Pennsylvania Division of Sleep Medicine, Department of Medicine, University of PennsylvaniaSearch for more papers by this authorDAVID F. DINGES, DAVID F. DINGES Department of Psychiatry, University of Pennsylvania School of Medicine, Philadelphia, PA, USASearch for more papers by this authorALLAN I. PACK, ALLAN I. PACK Center for Sleep and Respiratory Neurobiology and Division of Sleep Medicine, School of Medicine, University of Pennsylvania Division of Sleep Medicine, Department of Medicine, University of PennsylvaniaSearch for more papers by this author First published: 30 September 2010 https://doi.org/10.1111/j.1365-2869.2010.00889.xCitations: 24 Nalaka S. Gooneratne, MD, MSc, Division of Geriatric Medicine and Center for Sleep and Respiratory Neurobiology, 3615 Chestnut St, Philadelphia, PA 19104, USA. Tel.: 215-349-5938; fax: 215-573-8684; e-mail: [email protected] Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Summary Older adults have high prevalence rates of insomnia symptoms, yet it is unclear if these insomnia symptoms are associated with objective impairments in sleep. We hypothesized that insomnia complaints in older adults would be associated with objective differences in sleep compared with those without insomnia complaints. To test this hypothesis, we conducted a cross-sectional study in which older adults with insomnia complaints (cases, n = 100) were compared with older adults without insomnia complaints (controls, n = 100) using dual-night in-lab nocturnal polysomnography, study questionnaires and 7 days of at-home actigraphy and sleep diaries. Cases were noted to have reduced objective total sleep time compared with controls (25.8 ± 8.56 min, P = 0.003). This was largely due to increased wakefulness after sleep onset, and not increased sleep latency. When participants with sleep-related breathing disorder or periodic limb movement disorder were excluded, the polysomnography total sleep time difference became even larger. Cases also had reduced slow-wave sleep (5.10 ± 1.38 min versus 10.57 ± 2.29 min, effect size −0.29, P = 0.04). When comparing self-reported sleep latency and sleep efficiency with objective polysomnographic findings, cases demonstrated low, but statistically significant correlations, while no such correlations were observed in controls. Cases tended to underestimate their sleep efficiency by 1.6% (±18.4%), while controls overestimated their sleep efficiency by 12.4% (±14.5%). In conclusion, we noted that older adults with insomnia complaints have significant differences in several objective sleep findings relative to controls, suggesting that insomnia complaints in older adults are associated with objective impairments in sleep. Citing Literature Volume20, Issue3September 2011Pages 434-444 RelatedInformation