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Compliance to continuous positive airway pressure therapy in a group of Portuguese patients with obstructive sleep apnea syndrome

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Abstract

Introduction

Obstructive sleep apnea–hypopnea syndrome (OSAHS) is an emerging public health concern. Although different treatments for OSAHS had been proposed, continuous positive airway pressure (CPAP) is the first-line treatment in moderate to serious OSAHS in which success can be achieved by increasing compliance to CPAP.

Materials and methods

This study analyzes long-term CPAP compliance in patients with OSAHS on CPAP therapy for at least 1 month, who began CPAP therapy between January 2004 and December 2006, followed up at a Portuguese Sleep Outpatient Clinic in Santo António Hospital. Only effective data of CPAP use had been considered. During the first year of CPAP therapy, 96 patients were enrolled and followed up, but 15 patients had discontinued CPAP treatment. CPAP was used on average 5.1 h per day and in 80.1% of the total follow-up days. When compliance is defined as the use of CPAP for a minimum of 4 h per day in at least 70% of the follow-up days, only 54% of patients were classified as compliants during the first year.

Results and conclusion

No statistically significant differences were found throughout the first year (p > 0.05) in terms of the percentage of compliants, controlling for demographic and clinic variables. None of the demographic and clinical baseline variables studied were found to be significant predictor of CPAP compliance (p > 0.05). This study diagnosed a low compliance to CPAP therapy in the studied sample, warning to the need of developing further studies in this area and to the need of implementing strategies to increase CPAP compliance.

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Conflict of interest

The authors declare that they have no conflict of interest.

Author information

Authors and Affiliations

  1. Department of Orthopedics, Santo António Hospital, Oporto, Portugal

    Claudia Alves

  2. Department of Intensive Care, Santo António Hospital, Largo Prof. Abel Salazar, 4099-001, Oporto, Portugal

    José Manuel Pinto Chaves Caminha

  3. Department of Neurophysiology, Santo António Hospital, Oporto, Portugal

    Antonio Martins da Silva

  4. UMIB, Abel Salazar Biomedical Sciences Institute (ICBAS), University of Porto, Oporto, Portugal

    Antonio Martins da Silva

  5. Department of Population Studies Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Oporto, Portugal

    Denisa Mendonça

  6. Institute of Public Health, University of Porto, Oporto, Portugal

    Denisa Mendonça

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  1. Claudia Alves
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  2. José Manuel Pinto Chaves Caminha
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  3. Antonio Martins da Silva
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  4. Denisa Mendonça
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Correspondence to José Manuel Pinto Chaves Caminha.

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Alves, C., Caminha, J.M.P.C., da Silva, A.M. et al. Compliance to continuous positive airway pressure therapy in a group of Portuguese patients with obstructive sleep apnea syndrome. Sleep Breath 16, 555–562 (2012). https://doi.org/10.1007/s11325-011-0542-9

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  • DOI: https://doi.org/10.1007/s11325-011-0542-9

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