@article{ref1,
title="Daytime sleepiness associated with poor sustained attention in middle and late adulthood",
journal="Sleep Medicine",
year="2014",
author="Yun, Chang-Ho and Kim, Hyun and Lee, Seung Ku and Suh, Sooyeon and Lee, Seung Hoon and Park, Seong-Ho and Thomas, Robert J. and Au, Rhoda and Shin, Chol",
volume="16",
number="1",
pages="143-151",
abstract="OBJECTIVE: We 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. <br><br>METHODS: This 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. <br><br>RESULTS: High 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. <br><br>CONCLUSIONS: At the population level, our results revealed important modifiers of PVT performance, which included subjective reports of daytime sleepiness.<p /> <p>Language: en</p>",
language="en",
issn="1389-9457",
doi="10.1016/j.sleep.2014.07.028",
url="http://dx.doi.org/10.1016/j.sleep.2014.07.028"
}