AHI = apnea-hypopnea index, CAD = coronary artery disease, CPAP = continuous positive airway pressure, CSA-CSR = central sleep apnea-Cheyne Stokes respiration, ESS = Epworth Sleepiness Scale, OSA = obstructive sleep apnea, RICCADSA = Randomized Intervention with CPAP in Coronary Artery Disease and Sleep Apnea, SF-36 = Short Form-36 Health Survey.