evaluation of compliance with continuous positive airway pressure in patients with obstructive sleep apnea syndrome

Background and objective: obstructive sleep apnea syndrome (osas) is a breathing disorder during sleep and de-fined as unexplained sleepiness during the day, with a minimum of five obstructive respiratory events per hour of sleep. this study aimed to evaluate the compliance to continuous positive airway pressure (cpap) in patients with osas.materials and methods: this cross-sectional study was conducted on osas patients whose polysomnography test was performed at least 1 year before, and cpap was prescribed for them. apnea–hypopnea index (ahi) and patients’ demographic information were recorded.results: this study included 105 patients with osas. the mean ahi score was 40. patients were distributed into three groups according to their ahi: mild (5 ≤ ahi < 15): 20 patients (19%), moderate (15 ≤ ahi < 30): 25 patients (23.8%), and severe (ahi ≥ 30): 60 patients (57.1%). patients were divided into three groups based on their use of cpap: 27 (25.7%) patients were regular users of cpap, their time average use was 5.4 hours a day; 11 (10.4%) patients were in the group who stop using their cpap, their average of time use was 6.4 hours a day; and 67 (63.8%) patients were in the group who did not use the cpap.conclusion:the long-term adherence to cpap in patients with osas was 25%, which correlated significantly with their financial situation, while there was no significant association between the use of cpap with age, sex, educational status, and the severity of sleep apnea.