목적: To determine the prevalence of risks of obstructive sleep apnea among professional long-distance bus drivers in Iloilo City and its correlation with excessive daytime sleepiness. 방법:Self-administered questionnaires such as Berlin Scale, STOP-BANG questionnaire and Epworth Sleepiness Scale were given to 248 professional bus drivers of a commercial bus company in Iloilo Province. Study Participant Profile Data Collection Form was accomplished through an amalgamation of face-to-face interview, anthropometric measurements, and physical examination. Inferential analysis was performed to report statistically significantly associated factors for risks of OSA and EDS. 결과:The professional bus drivers are predominately overweight or obese, smokers, alcoholic drinkers, have large tongue, modified Mallamapati grade of 3 or 4, and tonsil grade of 2. Average anthropometric measurements of the respondents are either near or exceeding cut-off points. High-risk in OSA and EDS are highly prevalent. ESS and risks of OSA (based on Berlin Scale and STOP-BANG scale) have significantly weak positive correlation. Risks of OSA (based on Berlin scale) is significantly associated with BMI, comorbidity status, and type of comorbidity. Risks of OSA (based on STOP-BANG Scale) is significantly associated with age, years of driving experience, type of comorbidity and tongue size. All anthropometric measurements are significantly associated with risks of OSA and EDS. The professional bus drivers of the commercial bus company in Iloilo City exhibit the following physical findings suggestive of the presence of OSA: increased neck circumference, modified Mallampati score of 3 or 4, BMI > 27.5, and macroglossia. 결론:This Study has shown a high prevalence of risks of OSA and EDS and the associated factors among commercial bus drivers in Iloilo Province. It has provided a community-based baseline information that warrants additional quantitative examination and validation.