https://www.selleckchem.com/pr....oducts/ins018-055-is
nism guided approach. The Hypersomnia Severity Index (HSI) was designed to assess severity and impairment of hypersomnolence and validated in persons with psychiatric disorders. Little is known about its psychometric properties in clinical samples with sleep disorders. 158 patients (44.1±16.4 years old, 29.1% male, 19.6% racial/ethnic minority) evaluated at the Behavioral Sleep Medicine program of Penn State Health Sleep Research Treatment Center completed the HSI and other patient-reported outcomes. We examined the