OSA Patients' and Bed-Partners' Illness Perceptions in CPAP Therapy Adaptation Process

For patients: Inclusion Criteria: * Adult partcipants with mild (Apnea/Hypopnea Index, AHI between 5 and 15), moderate (AHI between 15 and 30), or severe (AHI greater than 30) OSA (Young et al., 2009), as certified by a pulmonologist at the recruitment centre, with a stable bed partner; * Participants with OSA awaiting CPAP therapy initiation, or those who are either adherent or non-adherent within the first year of CPAP use or who have been using CPAP for over a year; * Participants who provided informed consent to participate in the study; * Participants who are proficient in the Italian language. Exclusion Criteria: * Participants who did not provide informed consent to participate; * Participants who do not speak Italian; * Participants who have not been diagnosed with OSA and for whom CPAP therapy is not deemed necessary or who are not currently undergoing CPAP therapy; * Participants with OSA without a stable bed partner; * Participants with significant psychiatric comorbidities or with other significant organic pathologies where OSA is not the primary health concern, according to medical records; For bedpartners Inclusion criteria: * Bed partners in a stable relationship with an OSA patient for whom CPAP therapy adaptation has been deemed necessary or who are already adapted to CPAP therapy; * Bed partners who have provided informed consent to participate; * Bed partners who are proficient in the Italian language. Exclusion criteria: * Bed partners who did not…