Poster Presentations: Wednesday, November 3, 2010 |

Prevalence of Sleep-Disordered Breathing in Chinese Elderly FREE TO VIEW

Susanna S. Ng, MBChB; Tat-On Chan, RPSGT; Kin-Wang To, MBChB; Jenny Ngai, MBChB; Alvin Tung, MBChB; Fanny Ko, MD; David Hui, MD
Author and Funding Information

The Chinese Univ of Hong Kong, Hong Kong, Hong Kong PRC

Chest. 2010;138(4_MeetingAbstracts):612A. doi:10.1378/chest.9860
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PURPOSE: The prevalence of sleep-disordered breathing (SDB) in elderly subjects in Southeast Asian countries is unknown. This study aimed to determine the symptoms and prevalence of SDB in the elderly Chinese population.

METHODS: We conducted a sleep questionnaire survey at the community elderly centers followed by random selection of elderly to undergo portable home sleep monitoring with the Embletta(tm) device (Portable Diagnostic System).

RESULTS: Results mean (SD): Altogether 790 subjects were interviewed with age of 74.0(7.5) years, BMI 24.3 (3.6) kg/m2, female to male ratio 3.95:1 and Epworth sleepiness score (ESS) 6.6 (5.1). Impaired performance ability was reported by 59.5%, daytime sleepiness 71.1%, snoring ≥ 3 nights per week 24.3%, witnessed apnea 2.2% and symptoms of restless leg syndrome 13.2%. Among 210 who underwent home sleep study, 146 (61.9%), 95 (40.3%), 64 (27.1%) and 41 (17.4%) had AHI ≥5, ≥10, ≥15 and ≥20/h respectively. Neck circumference and snoring frequency were the positive independent factors associated with the apnea-hypopnea index (AHI). Eighty-six subjects suffered from SDB which was defined as AHI ≥15/hr or AHI ≥5/hr with ESS ≥10.

CONCLUSION: The estimated minimum prevalence rate of significant sleep disordered breathing was 10.9% among the elderly Chinese in HK.

CLINICAL IMPLICATIONS: Given the high prevalence rate of sleep disordered breathing in Chinese elderly, future study is needed to address the effect of treatment on health outcomes in this population.

DISCLOSURE: Susanna Ng, No Financial Disclosure Information; No Product/Research Disclosure Information

12:45 PM - 2:00 PM




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