Daytime sleepiness associated with poor sustained attention in middle and late adulthood |
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| Institution: | 1. Department of Neurology and Bundang Clinical Neuroscience Institute, Seoul National University Bundang Hospital, Seongnam, Republic of Korea;2. Institute of Human Genomic Study, College of Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea;3. Department of Psychology, Boston University, Boston, MA, USA;4. Department of Psychology, Sungshin Women''s University, Seoul, Republic of Korea;5. Department of Psychiatry, Stanford University, Palo Alto, CA, USA;6. Department of Otorhinolaryngology-Head and Neck Surgery, Korea University Ansan Hospital, Ansan, Republic of Korea;7. Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA;8. Department of Neurology, School of Medicine, Boston University, Boston, MA, USA;9. Division of Pulmonary, Sleep and Critical Care Medicine, Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea |
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| Abstract: | ObjectiveWe aimed to determine the association between psychomotor vigilance task (PVT) performance and sleep-related factors including sleep duration, daytime sleepiness, poor sleep quality, insomnia, and habitual snoring in a population-based sample.MethodsThis was a cross-sectional analysis from the ongoing prospective cohort study, the Korean Genome and Epidemiology Study. We measured PVT performance and documented demographics, sleep-related factors, life style, and medical conditions in community dwelling adults (N = 2499; mean age 57.1 ± 7.3; male 1259). Associations between PVT parameters and sleep-related factors were tested, adjusting for age, gender, smoking, alcohol use, education, body mass index, hypertension, diabetes, depression, and the interval between mid-sleep time and PVT test.ResultsHigh Epworth Sleepiness Scale (ESS, ≥8) was associated with slower mean reciprocal response speed (mean RRT) (3.69 ± 0.02 vs. 3.77 ± 0.01, p < 0.001), higher probability for increased lapses (≥4) (OR 1.48, CI 1.12–1.88, p = 0.001), and more negative RRT slope (−0.036 ± 0.002 vs. −0.030 ± 0.001, p = 0.02). Older age, female gender, low education level, depressive mood, and the interval between mid-sleep and PVT test were also associated with poor performance. Sleep duration, habitual snoring, insomnia, or poor sleep quality (the Pittsburgh Sleep Quality Index score > 5) was not related to PVT parameters.ConclusionsAt the population level, our results revealed important modifiers of PVT performance, which included subjective reports of daytime sleepiness. |
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