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Updated: Jul 2, 2026

Multi-Modal Home Sleep Monitoring in Older Adults
Published on: January 26, 2019
Observation-based nocturnal sleep inventory: screening tool for sleep apnea in elderly people
S-Hakki Onen1, Claude Dubray, Evelyne Decullier
1Hospices Civils de Lyon, Pôle Gériatrie, Hôpital Gériatrique Antoine Charial, Francheville, France. hakki.onen@chu-lyon.fr
Objectives:
To measure the ability of the Observation-based Nocturnal Sleep Inventory (ONSI) to detect the presence or absence of sleep apnea syndrome (SAS) in older adults.
Design:
Cross-sectional blinded study.
Setting:
University hospital-based geriatric sleep center.
Participants:
All participants aged 70 and older were referred by physicians for suspicion of SAS.
Measurements:
ONSI performed by nurses; overnight polysomnography. SAS was defined as an apnea-hypopnea index of 15 events or more per hour of sleep.
Results:
A total of 121 consecutive patients were evaluated for study participation. Six were excluded because of technical difficulties with polysomnography or too-frequent awakenings related to medical conditions. One hundred eleven patients completed the validation process. Polysomnography identified 68 patients as having SAS and 43 patients as not having SAS. The nurse-administered ONSI demonstrated good levels of sensitivity (90%), specificity (81%), positive predictive value (88%), and negative predictive value (83%) in screening older adults for SAS.
Conclusion:
The ONSI is the first valid SAS screening tool proposed for older persons in hospitals and nursing homes. This study demonstrates that the ONSI provides accurate information; is a simple, easy-to-use bed-side tool; and is highly sensitive and specific in screening SAS when compared with overnight polysomnography results.
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