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Compliance with CPAP in patients with obstructive sleep apnea

Long-term studies are far fewer and studies assessing compliance years after diagnosis are rare.6,7 In these reports, the reasons for noncompliance have often been inadequately documented. Moreover, compliance may have been overestimated in some because only those patients who actually embarked on CPAP therapy were included. Some patients who are prescribed CPAP may not obtain the device and are therefore not included in any subsequent analysis of compliance.