Abstract
IntroductionThe benefits of CPAP in patients with obstructive sleep apnea (OSA) are not achieved without therapeutic adherence (TA). The perception of benefit is one of the main predictors of adherence. However, it is unknown whether the impact of CPAP on health-related quality of life (HRQoL) is related to TA. Objective1) To evaluate whether changes in HRQoL after initiating CPAP are associated with AT. 2)To analyze the influence of various TA determinants, including baseline HRQoL. MethodsProspective observational and longitudinal study on a cohort of patients with moderate-severe OSA and indication of CPAP. Baseline and after-therapy HRQoL were evaluated using the Quebec Sleep Questionnaire (QSQ), as well as other possible AT determinants. A multivariate analysis was performed. ResultsA total of 364 patients (78% men) were included, with mean age of 55 ±11years and apnea-hypopnea index of 42 ±19/hour. 33.3% without TA. There was no association between HRQoL changes after 3months of CPAP and AT and between QSQ baseline score and AT. A higher ODI4%, a global improvement and social interactions (QSQ), were associated with AT. Baseline anxiety-depressive symptoms, worsening anxiety, and side effects with CPAP were associated with worse AT. ConclusionsThe impact of CPAP on HRQoL with respect to the perception of social interactions seems to condition TA. The basal impact of the disease, in terms of HRQoL, is not associated with AT.
Published Version
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