An evaluation of the comfort of modified CPAP devices in patients with obstructive sleep apnoea

The primary outcome of this study was to evaluate patient preference of different prototype Continuous Positive Airway Pressure (CPAP) and masks. 161 of 300 patients were trialed as we were unable to reach the anticipated number of 300 patients. However, this did not adversely affect the outcome of this study and was deemed sufficient. There were no withdrawals of patients or adverse events during the course of the study. The ethics in relation to this study has closed with reference to the following ethics number 13/NTB/63. The results of this study were primarily for internal feedback for future product development and not intended for market release.