Great Full Text, Full Read review of obstructive sleep apnea in 12/3/19 Annals of Internal Medicine Mild OSA: AHI or REI ≥5 but <15 events/h Moderate OSA: AHI or REI ≥15 but <30 events/h Severe OSA: AHI or REI ≥30 events/h https://t.co/nwNwejhLCn