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Sleep Med. 2010 Sep;11(8):772-6. doi: 10.1016/j.sleep.2010.03.012. Epub 2010 Jul 31.

Sleep maintenance insomnia complaints predict poor CPAP adherence: A clinical case series.

Author information

1
Center for Sleep Disorders, Pulmonary Disease and Critical Care Associates, Columbia, MD 21044, USA. ewickwire@pulmdocs.com

Abstract

BACKGROUND:

Although CPAP is a highly efficacious treatment for obstructive sleep apnea (OSA), low adherence presents a significant challenge for sleep medicine clinicians. The present study aimed to evaluate the relationship between insomnia symptoms and CPAP use. We hypothesized that pre-treatment insomnia complaints would be associated with poorer CPAP adherence at clinical follow-up.

METHODS:

This was a retrospective chart review of 232 patients (56.5% men, mean age=53.6+/-12.4years) newly diagnosed with OSA (mean AHI=41.8+/-27.7) and prescribed CPAP in the Johns Hopkins Sleep Disorder Center. Difficulty initiating sleep, difficulty maintaining sleep, and early morning awakening were measured via three self-report items. CPAP use was measured via objective electronic monitoring cards.

RESULTS:

Thirty-seven percent of the sample reported at least one frequent insomnia complaint, with 23.7% reporting difficulty maintaining sleep, 20.6% reporting early morning awakening and 16.6% reporting difficulty initiating sleep. After controlling for age and gender, sleep maintenance insomnia displayed a statistically significant negative relationship with average nightly minutes of CPAP use (p<.05) as well as adherence status as defined by the Centers for Medicaid and Medicare Services (p<.02).

CONCLUSIONS:

To our knowledge, these are the first empirical data to document that insomnia can be a risk factor for poorer CPAP adherence. Identifying and reducing insomnia complaints among patients prescribed CPAP may be a straightforward and cost-effective way to increase CPAP adherence.

PMID:
20673741
DOI:
10.1016/j.sleep.2010.03.012
[Indexed for MEDLINE]

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