2007
DOI: 10.5664/jcsm.26974
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Relationship Between Reported and Measured Sleep Times

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Cited by 240 publications
(139 citation statements)
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References 33 publications
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“…However, some studies have noted that the relationship between subjective and objective sleep may be more complex (Perlis et al, 2001;Tang and Harvey, 2005): while insomnia patients may overestimate their sleep latency, they may underestimate their total sleep efficiency (Libman et al, 1997). In addition, many individuals tend to overestimate sleep time (Silva et al, 2007), a finding that others and we have noted in our non-insomnia study participants (Rosa and Bonnet, 2000;Vitiello et al, 2004). Thus, the problem may not be that older insomniac patients are underestimating their sleep time, but instead that older non-insomniacs are actually overestimating their sleep time.…”
Section: Discussionsupporting
confidence: 68%
“…However, some studies have noted that the relationship between subjective and objective sleep may be more complex (Perlis et al, 2001;Tang and Harvey, 2005): while insomnia patients may overestimate their sleep latency, they may underestimate their total sleep efficiency (Libman et al, 1997). In addition, many individuals tend to overestimate sleep time (Silva et al, 2007), a finding that others and we have noted in our non-insomnia study participants (Rosa and Bonnet, 2000;Vitiello et al, 2004). Thus, the problem may not be that older insomniac patients are underestimating their sleep time, but instead that older non-insomniacs are actually overestimating their sleep time.…”
Section: Discussionsupporting
confidence: 68%
“…However, some data suggest that self-reported sleep duration may be biased as adults tend to over-report their actual sleep duration (24,25). Correlations between self-reported habitual sleep duration with sleep duration measured by polysomnography or actigraphy have ranged from 0.18 to 0.47 (24,25) and with sleep duration measured by sleep diaries have been reported as high as 0.79 (26). Third, our results are subject to residual confounding although we controlled for a large set of potential confounders that included measurements of socioeconomic status, lifestyle behaviors, and comorbidities.…”
Section: Discussionmentioning
confidence: 99%
“…The overestimation of sleep duration observed in the present sample is in agreement with other studies that have compared subjective and objective measurements of sleep duration. 26, [36][37][38] In particular, two recent studies found that samples of predominantly middle-to olderaged adults with normal sleep durations slept up to 60 min less than what they subjectively reported. 37,38 The present findings extend these similar results to older self-reported long sleepers.…”
Section: Discussionmentioning
confidence: 99%
“…26, [36][37][38] In particular, two recent studies found that samples of predominantly middle-to olderaged adults with normal sleep durations slept up to 60 min less than what they subjectively reported. 37,38 The present findings extend these similar results to older self-reported long sleepers. Moreover, these results may help explain the paradox in which the prevalence of self-reported long sleep is higher among adults over 50 years 1,3 despite the well-established age-related decline in objective sleep duration.…”
Section: Discussionmentioning
confidence: 99%