Recognition and Treatment of Sleep-disordered Breathing in Obese African American Hospitalized Patients may Improve Outcome

Abstract Purpose The HoSMed Database recently demonstrated a high prevalence of obstructive sleep apnea (OSA) in hospitalized obese patients. Based on a long-term follow-up, this study showed an improved survival among patients who were adherent with the therapy. In this post-hoc analysis we explore the characteristics, associations, and mortality outcome of OSA in the African American (AA) population. Methods These subset analyses included obese AA patients screened in the hospital as high-risk for OSA. Stepwise logistic regression analysis was used to identify predictors of OSA. Patients who had polysomnography (PSG) and were initiated on positive airway pressure (PAP) therapy were followed and dichotomized to adherent versus non-adherent groups based on compliance data. Mortality rates in both groups were compared. Results Of the total of 2022 AA patients screened, 1370 (60.7% females) were identified as high risk for OSA. Of these, 279 had PSG diagnosed OSA (mean AHI = 36/hour) and were initiated on PAP therapy. Adherence in AAs was significantly lower than for Caucasians (21% versus 45%, Chi-square p  Conclusion This large database of hospitalized patients confirms a high prevalence and lower adherence to PAP therapy in African Americans. Adherent patients, however, showed mortality benefit similar to Caucasians.