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Insomnia symptoms influence CPAP compliance

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Abstract

Purpose

The aim of this study is to determine parameters which influence 6-month compliance of continuous positive airway pressure therapy (CPAP) in patients with obstructive sleep apnea syndrome (OSAS).

Methods

This prospective study investigated 73 patients (24 females) with OSAS and medical indication for CPAP therapy: age 55.1 ± 11.5 years, body mass index (BMI) 30.8 ± 5.0 kg/m2, Apnea–Hypopnea Index (AHI) 39.2 ± 26.7/h, Oxygen Desaturation Index (ODI) 33.2 ± 25.4/h, minimum O2 saturation 78.9 ± 7.6%. The influence of baseline parameters (demographic and polysomnographic data, sleeping medication intakes, BMI, psychometrics [Epworth Sleepiness Scale, Regensburg Insomnia Scale, Vigilance test and Beck Depression Inventory]) on 6-month compliance was evaluated with a correlation and a linear regression analysis.

Results

The baseline value of the Regensburg Insomnia Scale (RIS) predicts 6-month CPAP compliance (r = −0.376, R 2 = 0.14, p < 0.001), although no other baseline parameter correlates. Patients with a compliance of <4 h/night show higher RIS scores, i.e., more insomnia symptoms (17.6 ± 8.8) compared to those with ≥4 h/night (12.6 ± 6.9; p < 0.05).

Conclusions

Insomnia symptoms prior to the beginning of CPAP treatment show a negative influence on CPAP compliance. Further studies should clarify, if a treatment of insomnia symptoms leads to a benefit in compliance.

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Conflict of interest

The authors declare that they have no conflict of interest.

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Authors and Affiliations

  1. Department of Psychiatry and Psychotherapy, Sleep Disorder Center, University Medical Center Regensburg, Regensburg, Germany

    Christoph Pieh, Magdalena Bach, Roland Popp, Cecilia Jara, Tatjana Crönlein, Göran Hajak & Peter Geisler

  2. Bezirksklinikum Regensburg, Universitätsstraße 84, 93053, Regensburg, Germany

    Christoph Pieh

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  1. Christoph Pieh
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  2. Magdalena Bach
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  3. Roland Popp
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  4. Cecilia Jara
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  6. Göran Hajak
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  7. Peter Geisler
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Correspondence to Christoph Pieh.

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Pieh, C., Bach, M., Popp, R. et al. Insomnia symptoms influence CPAP compliance. Sleep Breath 17, 99–104 (2013). https://doi.org/10.1007/s11325-012-0655-9

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  • DOI: https://doi.org/10.1007/s11325-012-0655-9

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