This graphic shows the breakdown of potential subtype of respiratory events reported as an index. In this case, the number of events in a one month period are low.
AHI: apnea hypopnea index (correctly referred to as AHIflow); HI: hypopnea index; AI: apnea index; CAI: central apnea index; OAI: obstructive apnea index; UAI: unknown apnea index; RERA: respiratory effort related arousal; CSR% (avg): cheyne stokes respiration.