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Sleep. 2007 Oct;30(10):1309-16.

Sleep-disordered breathing and psychomotor vigilance in a community-based sample.

Author information

  • 1Department of Population Health Sciences, Wisconsin School of Medicine and Public Health, Madison, WI 53706, USA. hyonkim@wisc.edu

Abstract

STUDY OBJECTIVE:

Sleep-disordered breathing (SDB) has been associated with impaired psychomotor vigilance performance in patients with sleep apnea patients. A bias toward greater referral of sleep apnea patients with severely impaired performance could explain these findings. Furthermore, no studies on the association between SDB and vigilance performance in a large community-based sample have been reported that encompasses the full spectrum of SDB severity. This study investigated the association between SDB and psychomotor vigilance with cross-sectional data from the Wisconsin Sleep Cohort Study.

SETTING AND PARTICIPANTS:

Community-based sample of 265 women and 346 men, mean age of 53.0 +/- 7.9 (age range: 35-74) years was used. Within 6 months of completing an overnight polysomnography protocol for SDB assessment, participants completed a 10-minute psychomotor vigilance task (PVT) during a daytime protocol.

MEASUREMENTS:

Sleep-disordered breathing was indicated by the number of apneas and hypopneas; psychomotor vigilance task variables included (1) mean of 1/reaction time (RT), (2) number of lapses, (3) mean reciprocal of fastest 10% RTs, (4) mean reciprocal of slowest 10% RTs, (5) slope of linear regression line across the 10 minutes of the task fit to 1/RTs, and (5) number of false responses.

RESULTS:

Multiple regression analysis showed a significant negative association between the logarithmically transformed apnea-hypopnea index (LogAHI) and number of lapses, mean of the slowest 10%, and number of false responses from the psychomotor vigilance task, independent of sex and body mass index in participants aged 65 years and older.

CONCLUSION:

SDB in the community population is associated with impaired psychomotor vigilance in older men and women.

PMID:
17969464
PMCID:
PMC2266275
[PubMed - indexed for MEDLINE]
Free PMC Article
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