Background: Obstructive Sleep Apnea (OSA) is a sleep disorder that affects a significant number of people worldwide. While Continuous Positive Airway Pressure (CPAP) devices have been proven to be effective in relieving symptoms, ensuring consistent use of those devices throughout the year can be challenging for a lot of patients. Objective: The present quantitative observational study in non-invasive ventilation for OSA patients explores adherence and attempts to identify independent predicting factors and year-round adherence differences in a large sample of OSA patients from Greece. Methods: Data from 1987 OSA patients using Continuous Positive Airway Pressure (CPAP) devices were collected in 2023. Factors evaluated in the study included the Apnea-Hypopnea Index (AHI), mask type, mask leaks and hours of CPAP device usage. Results: The majority were males (77.2%), aged over 60 years (57.9%). CPAP use varied, with 14.0% in their first year, 44.2% for 2-4 years, and 41.7% for
Key words: Continuous positive airway pressure, Obstructive Sleep Apnea, Seasonal adherence, CPAP Compliance.
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