Fannie Onen1,2,3, Christophe Lalanne2, Victoria M Pak3, Nalaka Gooneratne3,4, Bruno Falissard2, Saban-Hakki Onen4,5. 1. CHU Bichat Claude Bernard, APHP, Service de Gériatrie, Paris, France. 2. Université Paris Descartes, INSERM, Paris, France. 3. Center for Sleep and Circadian Neurobiology and Division of Sleep Medicine, School of Medicine, University of Pennsylvania, Philadelphia, PA. 4. Division of Geriatric Medicine, School of Medicine, University of Pennsylvania, Philadelphia, PA. 5. Hôpital Eduard Herriot, Centre Gériatrique de Médecine du Sommeil, Lyon, France.
Abstract
STUDY OBJECTIVES: We aimed to develop a new three-item assessment tool for daytime sleepiness in older adults, the Observation and interview-based Diurnal Sleepiness Inventory (ODSI) and determine its validity, internal consistency, test-retest reliability, and optimal cutoff score. METHODS: A total of 133 elderly subjects including 73 patients with obstructive sleep apnea (OSA) (mean age, 79 y) and 60 controls (mean age, 80 y) were consecutively enrolled and answered all questionnaires. The ODSI questionnaire was validated using the Epworth Sleepiness Scale considered as a gold standard. Reliability, validity, and cut-points were tested. RESULTS: The ODSI has acceptable validity, internal consistency, and test-retest reliability properties. The ODSI has internal consistency and a reliability coefficient (Pearson rho) of 0.70 for its three items, which suggests strong reliability. The estimated sensitivity and specificity were 0.842 with 95% confidence interval [0.624; 0.945] and 0.851 [0.761; 0.911], respectively. The consistency of summated scale scores during test and retest sessions was high (r = 0.970, 95% bootstrap confidence interval [0.898; 0.991]). Receiver operating characteristic analysis suggests that a cut-point of 6 is effective for identifying older adults with excessive levels of daytime sleepiness. CONCLUSIONS: The ODSI is a brief, valid, easy-to-administer three-item assessment that can screen for excessive daytime sleepiness among elderly patients with OSA.
STUDY OBJECTIVES: We aimed to develop a new three-item assessment tool for daytime sleepiness in older adults, the Observation and interview-based Diurnal Sleepiness Inventory (ODSI) and determine its validity, internal consistency, test-retest reliability, and optimal cutoff score. METHODS: A total of 133 elderly subjects including 73 patients with obstructive sleep apnea (OSA) (mean age, 79 y) and 60 controls (mean age, 80 y) were consecutively enrolled and answered all questionnaires. The ODSI questionnaire was validated using the Epworth Sleepiness Scale considered as a gold standard. Reliability, validity, and cut-points were tested. RESULTS: The ODSI has acceptable validity, internal consistency, and test-retest reliability properties. The ODSI has internal consistency and a reliability coefficient (Pearson rho) of 0.70 for its three items, which suggests strong reliability. The estimated sensitivity and specificity were 0.842 with 95% confidence interval [0.624; 0.945] and 0.851 [0.761; 0.911], respectively. The consistency of summated scale scores during test and retest sessions was high (r = 0.970, 95% bootstrap confidence interval [0.898; 0.991]). Receiver operating characteristic analysis suggests that a cut-point of 6 is effective for identifying older adults with excessive levels of daytime sleepiness. CONCLUSIONS: The ODSI is a brief, valid, easy-to-administer three-item assessment that can screen for excessive daytime sleepiness among elderly patients with OSA.
Authors: Clete A Kushida; Michael R Littner; Timothy Morgenthaler; Cathy A Alessi; Dennis Bailey; Jack Coleman; Leah Friedman; Max Hirshkowitz; Sheldon Kapen; Milton Kramer; Teofilo Lee-Chiong; Daniel L Loube; Judith Owens; Jeffrey P Pancer; Merrill Wise Journal: Sleep Date: 2005-04 Impact factor: 5.849
Authors: T E Weaver; A M Laizner; L K Evans; G Maislin; D K Chugh; K Lyon; P L Smith; A R Schwartz; S Redline; A I Pack; D F Dinges Journal: Sleep Date: 1997-10 Impact factor: 5.849
Authors: Allan I Pack; David F Dinges; Philip R Gehrman; Bethany Staley; Frances M Pack; Greg Maislin Journal: Ann Neurol Date: 2006-06 Impact factor: 10.422