Citation

Sasai-Sakuma T, Kikuchi K, Inoue Y. J. Occup. Environ. Med. 2016; 58(5): 455-458.

Affiliation

Department of Somnology, Tokyo Medical University (Drs Sasai-Sakuma, Inoue); Department of Life Sciences and Bio-informatics, Division of Biomedical Laboratory Sciences, Graduate School of Health Sciences, Tokyo Medical and Dental University (Dr Sasai-Sakuma); and Japan Somnology Center, Neuropsychiatric Research Institute, Tokyo (Mr Kikuchi, Dr Inoue).

Copyright

(Copyright © 2016, Lippincott Williams and Wilkins)

DOI

10.1097/JOM.0000000000000692

PMID

27158952

Abstract

OBJECTIVE: This study investigates obstructive sleep apnea syndrome (OSAS) prevalence among Japanese occupational drivers and factors associated with a pathological level of objective daytime sleepiness.

METHODS: Portable monitoring device (PMD) screening was applied to 2389 Japanese male public transportation traffic drivers. Nocturnal polysomnography (n-PSG) and multiple sleep latency tests (MSLT) were administered to subjects with apnea-hypopnea index (AHI) at least 15 on PMD.

RESULTS: In all, 235 subjects were diagnosed as having OSAS (9.8%). AHI on n-PSG at least 40 and Epworth Sleepiness Scale score at least 11 were extracted as factors associated with mean sleep latency on MSLT less than 5 minutes.

CONCLUSION: Prevalence of OSAS in male Japanese public transportation traffic drivers was 9.8% or greater. Individuals aware of excessive daytime sleepiness and with severe OSAS were inferred as exhibiting a pathological level of objective daytime sleepiness.

Language: en