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. 2016 Sep-Oct;14(5):539-49.
doi: 10.1080/15402002.2015.1048447. Epub 2015 Oct 27.

Discrepancies Between Self-Reported Usual Sleep Duration and Objective Measures of Total Sleep Time in Treatment-Seeking Overweight and Obese Individuals

Erin O'Brien  1 , Chantelle Hart  2 , Rena R Wing  1
Affiliations

Discrepancies Between Self-Reported Usual Sleep Duration and Objective Measures of Total Sleep Time in Treatment-Seeking Overweight and Obese Individuals

Erin O'Brien et al. Behav Sleep Med. 2016 Sep-Oct.

Abstract

To examine the agreement between actigraphy-estimated and self-reported sleep duration in obese individuals, we had 63 treatment seeking overweight/obese participants complete the Pittsburgh Sleep Quality Index (PSQI) and report sleep duration for weekends and weekdays, and compared their reports to 7 days of actigraphy. Actigraph total sleep time correlated r = .20-.31 with self-report and the absolute discrepancy averaged 51-54 minutes. Only 20 of the 32 subjects (62.5%) classified as short sleepers (<7 hours/night) by actigraphy were similarly classified by self-report. Poor sleep quality was associated with greater absolute discrepancy between actigraphy and self-report. The weak correlations between self-report and actigraph should be considered in future efforts to increase sleep duration to promote weight loss in obese individuals.

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Figures

Figure 1
Figure 1
Correspondence between actigraph and self-report total sleep time
Figure 2
Figure 2
Bland Altman plot of Actigraphy and PSQI self-reported total sleep time
See this image and copyright information in PMC

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