• Yao-Kuang Wu, Chou-Chin Lan, and Mei-Chen Yang.
• Division of Pulmonary and Critical Care Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan.
• Respir Care. 2013 Sep 1;58(9):1504-13.

BackgroundThe prevalence of obstructive sleep apnea (OSA) increases with age. Treatment often includes CPAP. CPAP adherence is correlated with disease severity and symptoms. We hypothesized that CPAP acceptance rates in elderly patients with OSA would be lower than in younger patients with OSA, and examined factors associated with CPAP acceptance.MethodsWe reviewed the charts of 315 subjects with OSA (apnea-hypopnea index ≥ 5 events/h) who were treated at our hospital from 2008 to 2011 with CPAP therapy. All underwent CPAP titration testing before CPAP prescription. Subjects were grouped by age: young (25-40 y, n = 35), middle-age (41-65 y, n = 169), and elderly (> 65 y, n = 111). Demographic variables, excessive daytime sleepiness, overnight polysomnography study variables, CPAP acceptance, and CPAP adherence were compared. Regression analysis was performed to identify factors associated with acceptance.ResultsThe elderly subjects had less excessive daytime sleepiness and less pronounced alterations in overnight polysomnography variables than the subjects in the other groups, but had more cardiovascular comorbidities. The CPAP acceptance rate (overall 125/315, 39.7%) was significantly lower in the elderly group, compared with the younger group (31.5% vs 60%, P = .01). CPAP acceptance was associated with fewer comorbidities, higher excessive daytime sleepiness, and higher apnea-hypopnea index, but not age. CPAP adherence was not associated with age.ConclusionsCPAP acceptance is low in elderly patients in Taiwan. CPAP acceptance, instead of CPAP adherence, is the critical issue with elderly patients with OSA.

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