0854 Observation-based Diurnal Sleepiness Inventory (ODSI) is associated with Objective Sleepiness via Psychomotor Vigilance Task

Abstract Introduction The Epworth Sleepiness Scale (ESS) is commonly used to assess excessive daytime sleepiness, but its accuracy limited. In this study, we aim compare the ESS with Observation-based Diurnal Inventory (ODSI), a subjective measure of sleepiness that has been validated using in older adults, objective measures obtained through Psychomotor Vigilance Task (PVT). Despite being ESS, ODSI not yet tested sleepiness. By comparing (ODSI and ESS) (PVT), expand usage other populations. Methods 91 persons newly diagnosed obstructive sleep apnea treated on continuous positive airway pressure (CPAP) were administered ODSI, PVT tests, results analyzed for correlations linear regression. average age was 50.48 ± 12.74, mean body mass index (BMI) 35.9 9.3, hypopnea 30.9 23.7, 53.5% male. scores run against lapses transformed reaction time, which are two primary outcomes PVT. Results significantly different between sleepy non-sleepy individuals as defined by both categorization. Both correlated time. second question also well Conclusion suitable appropriate middle-aged adults apnea. Support (if any) R00NR014675-05 (PI: Pak)