University of Illinois at Chicago
Accepted JCSM paper revised III_ finaledited SR__NC20171214_SL20171214 CLEAN.pdf (913.66 kB)

Effects of Bedroom Environmental Conditions on the Severity of Obstructive Sleep Apnea

Download (913.66 kB)
journal contribution
posted on 2018-06-25, 00:00 authored by Sattamat Lappharat, Nutta Taneepanichskul, Sirimon Reutrakul, Naricha Chirakalwasan
STUDY OBJECTIVES: Epidemiological associations have demonstrated the effects of long-term air pollution to obstructive sleep apnea (OSA) through a physiological mechanism linking particulate matter exposure to OSA. This study aimed to determine the relationship between bedroom environmental conditions, OSA severity, and sleep quality. METHODS: Sixty-three participants were enrolled for an overnight polysomnography; OSA was diagnosed between May to August 2016. Personal characteristics and sleep quality were obtained by a face-to-face interview. Bedroom environments, including data on particulate matter with an aerodynamic diameter less than 10 μm (PM10), temperature, and relative humidity, were collected by personal air sampling and a HOBO tempt/RH data logger. RESULTS: Sixty-eight percent of the participants experienced poor sleep. An elevation in 1-year mean PM10 concentration was significantly associated with an increase in apnea-hypopnea index (beta = 1.04, P = .021) and respiratory disturbance index (beta = 1.07, P = .013). An increase of bedroom temperature during sleep was significantly associated with poorer sleep quality (adjusted odds ratio 1.46, 95% confidence interval 1.01-2.10, P = .044). Associations between PM10 concentration and respiratory disturbance index were observed in the dry season (beta = 0.59, P = .040) but not in the wet season (beta = 0.39, P = .215). PM10 was not associated with subjective sleep quality. CONCLUSIONS: Elevation of PM10 concentration is significantly associated with increased OSA severity. Our findings suggest that reduction in exposure to particulate matter and suitable bedroom environments may lessen the severity of OSA and promote good sleep.


This study was funded by the 90th Anniversary of Chulalongkorn University Fund (Ratchadaphiseksomphot Endowment Fund) and Chulalongkorn Academic Advancement into Its 2nd Century Project (CUAASC).


Publisher Statement

This article has been accepted for publication in the Journal of Clinical Sleep Medicine published by the American Academy of Sleep Medicine”


Lappharat, S., Taneepanichskul, N., Reutrakul, S. and Chirakalwasan, N. Effects of Bedroom Environmental Conditions on the Severity of Obstructive Sleep Apnea. Journal of Clinical Sleep Medicine. 2018. 14(4): 565-573. 10.5664/jcsm.7046


American Academy of Sleep Medicine


  • en_US



Issue date


Usage metrics


    No categories selected


    Ref. manager