Factor associated with severity of obstructive sleep apnea in Thammasat University hospital


  • Wadee Wongpradit Department of Community Medicine and Family, Faculty of Medicine, Thammasat University
  • Prapasri Kulalert Department of Clinical Epidemiology, Family Medicine, Faculty of Medicine, Thammasat University
  • Nithita Sattaratpaijit Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine, Thammasat University


Obstructive sleep apnea, Factor, Severity, Diabetes mellitus


Introduction:             Obstructive sleep apnea (OSA) is a prevalent chronic disease and is associated with many adverse health outcomes, but OSA is underrecognized by physicians.

Objectives:                 To identify factors associated with severity of OSA

Methods:                    This was a retrospective cross-sectional study. 587 OSA patients were enrolled and classified into 3 groups: mild, moderate, and severe OSA. Demographic and comorbidity data, anthropometric measurement, and Epworth sleepiness scale were reviewed. Ordinal regression was used to analyze the associated factors.

Results:                       The prevalence of mild, moderate, and severe OSA were 39.0%, 23.9% and 56.7% respectively. Univariable analyses showed that male sex, body mass index (BMI) > 25 kg/m2, neck circumference (NC) > 40 cm, excessive daytime sleepiness, hypertension, and diabetes mellitus were associated with severity of OSA. Multivariable ordinal analysis showed that age ≥ 60 years old, male sex, BMI ≥ 25 kg/m2, NC > 40 cm, excessive daytime sleepiness, and diabetes mellitus were associated with severity of OSA.

Conclusions:          Our identifying factors assist to recognize adult patients at risk of OSA by severity.


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How to Cite

Wongpradit, W., Kulalert, P. and Sattaratpaijit, N. 2023. Factor associated with severity of obstructive sleep apnea in Thammasat University hospital. Asian Medical Journal and Alternative Medicine. 23, 2 (Aug. 2023), 110–117.



Original Articles