Race, Sex, Age, and Regional Differences in the Association of Obstructive Sleep Apnea With Atrial Fibrillation: Reasons for Geographic and Racial Differences in Stroke Study Race, Sex, Age, and Regional Differences in the Association of Obstructive Sleep Apnea With Atrial Fibrillation: Reasons for Geographic and Racial Differences in Stroke Study Download Untreated Sleep Apnea: An Analysis of Administrative Data to Identify Risk Factors for Early Nonadherence Accuracy and Reliability of Internet Resources Providing Information on Obstructive Sleep Apnea