Relationship Between Reported and Measured Sleep Times

Silva, Graciela E.; Goodwin, James L.; Sherrill, Duane L.; Arnold, Jean L.; Bootzin, Richard R.; Smith, T.; Walsleben, Joyce A.; Baldwin, Carol M.; Quan, Stuart F.

doi:10.5664/jcsm.26974

Cited by 229 publications

(133 citation statements)

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%

Case-control study of subjective and objective differences in sleep patterns in older adults with insomnia symptoms

Gooneratne

Bellamy

Pack

et al. 2010

Journal of Sleep Research

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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 to 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 to older adults without insomnia complaints (controls, n=100) using dual-night in-lab nocturnal polysomnography, study questionnaires and seven days of at-home actigraphy and sleep diaries. Cases were noted to have reduced objective total sleep time compared to controls (25.8 minutes +/− 8.56, p=0.003). This was largely due to increased wakefulness after sleep onset (WASO), 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 vs 10.57 +/− 2.29 minutes, effect size −0.29, p=0.04). When comparing self-reported sleep latency and sleep efficiency to objective polysomnographic findings, cases demonstrated low, but statistically significant correlations, while no such correlations were observed in controls. Cases tended to under-estimate their sleep efficiency by 1.6% (+/− 18.4%), while controls over-estimated 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.

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Section: Discussionsupporting

confidence: 68%

Case-control study of subjective and objective differences in sleep patterns in older adults with insomnia symptoms

Gooneratne

Bellamy

Pack

et al. 2010

Journal of Sleep Research

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“…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%

Sleep duration and body mass index and waist circumference among Us adults

Ford

Wheaton

et al. 2013

Obesity

125

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Objective To examine the form of the relationship between sleep duration and anthropometric measures and possible differences in these relationships by gender and race or ethnicity. Design and Methods Data for 13,742 participants aged ≥20 years from the National Health and Nutrition Examination Survey 2005–2010 were used. Sleep duration was categorized as ≤6 (short sleepers), 7–9, and ≥10 hours (long sleepers). Results Short sleepers were as much as 1.7 kg/m2 (SE 0.4) heavier and had 3.4 cm (SE 1.0) more girth than long sleepers. Among participants without depression or a diagnosed sleep disorder, sleep duration was significantly associated with body mass index (BMI) and waist circumference in an inverse linear association in the entire sample, men, women, whites, African Americans, and participants aged 20–39 years. No evidence for statistical interaction by gender and race or ethnicity was observed. Regression coefficients were notably stronger among adults aged 20–39 years. Compared to participants who reported sleeping 7–9 hours per night, short sleepers were more likely to be obese and have abdominal obesity. Conclusions In this nationally representative sample of US adults, an inverse linear association most consistently characterized the association between sleep duration and BMI and waist circumference.

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“…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%

Self-reported long sleep in older adults is closely related to objective time in bed

Kline

Zielinski

Devlin

et al. 2010

Sleep and Biological Rhythms

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Although self-reported long sleep is associated with increased morbidity and mortality, little is known about the objective sleep patterns and daytime functioning of long sleepers, particularly those aged ≥50 years. Our primary aim was to compare the objective and subjective sleep patterns of a sample (n = 35) of middle- to older-aged adults who reported sleeping ≥8.5 h per night. A secondary aim was to characterize the mood and functioning of the sample. Over a 2-week period, sleep was recorded via actigraphy and a daily diary. Sleepiness was assessed daily. At the conclusion of the 2-week period, daytime sleepiness, mood, and quality of life were assessed. Measures of sleep and functioning were compared with available representative data. In the sample, actigraphic total sleep time (TST; 7.35 ± 0.97 h) was approximately 60 min greater than age-related representative values but substantially less than diary-assessed TST (8.59 ± 0.74 h) and survey-assessed TST (8.92 ± 0.78 h). Survey and diary-based subjective TST assessments agreed more closely with actigraphic time in bed (TIB; 9.11 ± 0.72 h) than TST, and correlations between subjective TST and actigraphic TIB were similar to those between subjective and actigraphic TST. Measures of mood, sleepiness, and daytime functioning were similar to population-representative values. These results suggest that, among middle- to older-aged adults, self-reported long sleep is primarily indicative of long TIB, but it also represents long objective sleep duration, particularly in comparison to age-matched data. Findings of little functional impairment corroborated previous descriptions of older long sleepers.

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Relationship Between Reported and Measured Sleep Times

Cited by 229 publications

References 33 publications

Case-control study of subjective and objective differences in sleep patterns in older adults with insomnia symptoms

Case-control study of subjective and objective differences in sleep patterns in older adults with insomnia symptoms

Sleep duration and body mass index and waist circumference among Us adults

Self-reported long sleep in older adults is closely related to objective time in bed

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