Hanna-Riikka Kreivi1, Paula Maasilta, Adel Bachour. 1. Sleep Unit, Division of Pulmonary Medicine, Department of Medicine, Helsinki University Central Hospital, Haartmaninkatu 4, PO Box 372, FIN-00029 HUS, Helsinki, Finland, hanna-riikka.kreivi@hus.fi.
Abstract
PURPOSE: To predict continuous positive airway pressure (CPAP) adherence at 1 year. METHODS: We followed consecutive OSA patients scheduled for CPAP initiation for 1 year. Patients completed a self-efficacy questionnaire (5 = low, 25 = high score) before CPAP initiation. After CPAP initiation, we enquired about patients' satisfaction in CPAP trial and their eagerness and willingness to continue CPAP therapy (0 = unsatisfied, uneager, or refused CPAP; 100 = satisfied, eager, or willing to continue CPAP treatment). RESULTS: Of the 580 patients we followed, 377 continued CPAP therapy beyond 1 year. A low willingness score (<50) was expressed by 77 patients but only 7 of them used CPAP >4 h daily at 1 year, yielding a specificity of 97 % in predicting CPAP failure. At 1 year, patients with a self-efficacy score >20, expressed prior to CPAP initiation, used CPAP more often than the patients with a score <20 (average use 4.4 ± 2.2 h vs. 3.7 ± 2.3 h, p<0.001). CONCLUSIONS: A low score of willingness to continue CPAP therapy after a short trial predicts CPAP failure and poor CPAP adherence at 1 year.
PURPOSE: To predict continuous positive airway pressure (CPAP) adherence at 1 year. METHODS: We followed consecutive OSA patients scheduled for CPAP initiation for 1 year. Patients completed a self-efficacy questionnaire (5 = low, 25 = high score) before CPAP initiation. After CPAP initiation, we enquired about patients' satisfaction in CPAP trial and their eagerness and willingness to continue CPAP therapy (0 = unsatisfied, uneager, or refused CPAP; 100 = satisfied, eager, or willing to continue CPAP treatment). RESULTS: Of the 580 patients we followed, 377 continued CPAP therapy beyond 1 year. A low willingness score (<50) was expressed by 77 patients but only 7 of them used CPAP >4 h daily at 1 year, yielding a specificity of 97 % in predicting CPAP failure. At 1 year, patients with a self-efficacy score >20, expressed prior to CPAP initiation, used CPAP more often than the patients with a score <20 (average use 4.4 ± 2.2 h vs. 3.7 ± 2.3 h, p<0.001). CONCLUSIONS: A low score of willingness to continue CPAP therapy after a short trial predicts CPAP failure and poor CPAP adherence at 1 year.
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