Wickwire EM, Bailey MD, Somers VK, et al. - Researchers investigated how adherence to continuous positive airway pressure (CPAP) therapy could influence health care utilization in a nationally representative and multimorbid sample of older adults with preexisting cardiovascular disease and subsequently diagnosed with obstructive sleep apnea (OSA) in the US. A random 5% sample of Medicare administrative claims data was the data source. Age of all 1,921 participants was ≥65 years, and were diagnosed with cardiovascular disease and OSA, and subsequently started CPAP therapy between 2009-2013. Patients were grouped, depending on the number of CPAP machine charges, as low, partial, or high adherers (i.e., <4, 4-12 and >12 CPAP charges, respectively). Findings showed decreased inpatient utilization among high adherers than low adherers and in this population of older multimorbid Medicare beneficiaries.