Evaluation of Self-efficacy as a Predictor for CPAP-compliance in a OSAS-patients French Cohort

Using a prospective design, investigators aim to examine the following factors: pre-treatment demographic factors, sleep clinical factors (Somnolence complaints with ESS questionnaire and Insomnia complaints with ISI questionnaire), patients' perceptions of self-efficacy (SEMSA questionnaire), and nose respiratory complaints (NOSE questionnaire). The objective is to investigate if self-efficacy would be the best predictor of CPAP use during the first month of treatment and at 3 and 6 months after treatment beginning. Impact of demographic factors, sleep and nose complaints will be taken into account. The study intend to recruit at the sleep clinic 150 patients with newly diagnosed Obstructive Sleep Apnea Syndrome for whom CPAP treatment is indicated. During the consultation of CPAP treatment initiation, the investigator will present the study and give the informed notice. If the patient agrees to participate, the investigator will notify the non-opposition of the patient in the medical file and confirm eligibility criteria. The patient will then complete 4 questionnaires (ISI, ESS, SEMSA, NOSE). After initiation of CPAP treatment, the same questionnaires will be sent to the patient 1 month, 3 and 6 months after treatment beginning. A Clinical Research Associate will call the patient to ensure the completion of questionnaires or in case of missing or incomplete data. The result of this study will give the opportunity to have a predictive model that enable pretreatment prediction of those likely to have difficulty with CPAP use, and would serve as the basis for the development of maximally effective interventions in order to enhance CPAP adherence by patients with OSAS.