Prevalence, Risk Factors and Clinical Manifestation of Patients Suspected as having Obstructive Sleep Apnea in Songklanagarind Hospital Sleep Center

Abstract

Objective: To identify the prevalence and to determine both risk factors and clinical manifestation of obstructive sleep apnea (OSA).Material and Methods: A retrospective study was conducted to review the medical records and polysomnographic data of patients from March 2006 to December 2017.Results: A total of 929 patients was enrolled, however, only 124 patients had habitual snoring (13.4%). The prevalence of OSA and OSAS was 85.6% and 52.7% respectively. OSA was more prevalent in men than women (60.5% vs 25.1%). The presence of HT or symptoms of choking, gasping and neurocognitive impairment were significantly greater in OSA patients compared with the non-OSA group. In multivariate analysis, it was revealed that male gender, age ≥50 years, body-mass index (BMI) >25 kg/m2, neck circumference (NC) >40 cm and waist to height ratio (WHtR) >0.6 were the significant predictors for OSA.Conclusion: This study demonstrated that; OSA is a major health concern within the Thai population. Male gender, elderly age and those higher in BMI, NC or WHtR can be predicted as having the presence of OSA.

Relationship between Cephalometric and Ultrasonic Airway Parameters in Adults with High Risk of Obstructive Sleep Apnea

“…The WHtR identifies central obesity, or visceral fat, and represents fat distribution [ 13 ]. However, some authors reported that if the WHtR is higher than 0.5 or 0.6, the risk of causing obstructive sleep apnea increases [ 14 , 15 , 16 , 17 ]. Therefore, the waist-to-height ratio (WHtR) should be incorporated into questionnaires for high-risk individuals to reduce the possibility of false-positive results.…”