The severity of obstructive sleep apnea can be measured by the apnea index (AI) or the apnea-hypopnea index (AHI). These indices are defined as the number or apneas or apneas and hyponeas, respectively, per hour during sleep.3,5 Another commonly used index is the respiratory disturbance index (RDI), which, in addition to apneas and hypopneas, other less evident respiratory
The severity of obstructive sleep apnea can be measured by the apnea index (AI) or the apnea-hypopnea index (AHI). These indices are defined as the number or apneas or apneas and hyponeas, respectively, per hour during sleep.3,5 Another commonly used index is the respiratory disturbance index (RDI), which, in addition to apneas and hypopneas, other less evident respiratory