Influence of Marital Status and Employment Status on Long-Term Adherence with Continuous Positive Airway Pressure in Sleep Apnea Patients

Background: Long-term adherence is a major issue in patients receiving home continuous positive airway pressure (CPAP) therapy for obstructive sleep apnea-hypopnea syndrome (OSAHS). In a multicenter prospective cohort (the Institut de Recherche en Sante Respiratoire des Pays de la Loire [IRSR] sleep cohort) of consecutive OSAHS patients in whom CPAP had been prescribed for at least 90 days, we studied the impact on long-term treatment adherence of socioeconomic factors, patients and disease characteristics prior to CPAP initiation. Methods and Principal Findings: Among 1,141 patients in whom CPAP had been prescribed for an average of 5046251 days (range: 91 to 1035), 674 (59%) were adherent with a mean daily use of CPAP >= 4 h (mean: 6.42 +/- 61.35 h). Stepwise regression analysis identified 4 independent factors of CPAP adherence including apnea-hypopnea index (AHI) (OR: 1.549, 95% CI 1.163 to 2.062 for AHI >= 30 vs. AHI < 30; p = 0.003), body mass index (BMI) (OR: 1.786, 95% CI 1.131 to 2.822 for BMI >= 25 and <30 kg/m(2), p = 0.01; OR: 1.768, 95% CI 1.145-2.731 for BMI >= 30 kg/m(2), p = 0.01 vs. BMI < 25 kg/m(2)), employment status (OR: 1.414, 95% CI 1.097-1.821 for retired vs. employed; p = 0.007) and marital status (OR: 1.482, 95% CI 1.088-2.019 for married or living as a couple vs. living alone; p = 0.01). Age, gender, Epworth sleepiness scale, depressive syndrome, associated cardiovascular morbidities, educational attainment and occupation category did not influence CPAP adherence. Conclusions: Marital status and employment status are independent factors of CPAP adherence in addition to BMI and disease severity. Patients living alone and/or working patients are at greater risk of non-adherence, whereas adherence is higher in married and retired patients. These findings suggest that the social context of daily life should be taken into account in risk screening for CPAP non-adherence. Future interventional studies targeting at-risk patients should be designed to address social motivating factors and work-related barriers to CPAP adherence.