Nightly Sleep Duration in the 2-week Period Preceding Multiple Sleep Latency Testing

Overview

Journal J Clin Sleep Med

Specialties Neurology
Psychiatry

Date 2007 Nov 13

PMID 17993043

Citations 15

Authors

David A Bradshaw

Matthew A Yanagi

Edward S Pak

Terry S Peery

Gregory A Ruff

Affiliations

Soon will be listed here.

Abstract

Study Objective: To assess usual nightly sleep duration of patients referred for a Multiple Sleep Latency Test (MSLT).

Design: Retrospective chart review.

Setting: Military, hospital-based, sleep center.

Patients: Fifty-four patients with excessive daytime sleepiness referred for an MSLT.

Interventions: None.

Measurements And Results: Self-reported average nightly sleep duration (6.13 +/- 1.23 hours), sleep log-recorded average nightly sleep duration (6.99 +/- 0.85 hours), and actigraphy-measured average nightly sleep duration (5.56 +/- 1.50 hours) were compared for the 2-week period immediately preceding an MSLT One-way analysis of variance revealed a significant difference in the 3 estimates of nightly sleep duration (p < 0.0001), and only actigraphy-measured average nightly sleep duration correlated with mean sleep latency on the MSLT (r = 0.4258, p = 0.0016). Subgroup analysis showed that patients with a mean sleep latency shorter than 8 minutes slept an average of 1.57 hours less per night than did those patients with a mean sleep latency of 8 minutes or longer (4.53 +/- 1.37 vs 6.10 +/- 1.37 hours per night, p < 0.001) as measured by actigraphy. There was no difference in either self-reported average nightly sleep duration or sleep log-recorded average nightly sleep duration between the 2 subgroups.

Conclusions: Prolonged actigraphy monitoring may provide useful clinical information about pre-MSLT sleep not always obtainable from patient self-reporting or sleep logs.

Citing Articles

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Importance of Getting Enough Sleep and Daily Activity Data to Assess Variability: Longitudinal Observational Study.

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Actigraphy prior to Multiple Sleep Latency Test: nighttime total sleep time predicts sleep-onset latency.

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Accuracy of Actigraphy Compared to Concomitant Ambulatory Polysomnography in Narcolepsy and Other Sleep Disorders.

Alakuijala A, Sarkanen T, Jokela T, Partinen M Front Neurol. 2021; 12:629709.

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