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  2. Apnea–hypopnea index - Wikipedia

    en.wikipedia.org/wiki/Apnea–hypopnea_index

    Underage pediatric patients presenting with AHI of 2 or greater will often be referred for treatment. [3] The Apnea-Hypopnea Index has been criticized for being too simplistic to accurately rate apnea and hypopnea events for their severity. [4] [5] In one study, mean apnea-hypopnea duration and not AHI was found to be associated with worse ...

  3. Epworth Sleepiness Scale - Wikipedia

    en.wikipedia.org/wiki/Epworth_Sleepiness_Scale

    A number in the 0–9 range is considered to be normal while a number in the 10–24 range indicates that expert medical advice should be sought. [3] For instance, scores of 11–15 are shown to indicate the possibility of mild to moderate sleep apnea, where a score of 16 and above indicates the possibility of severe sleep apnea or narcolepsy. [3]

  4. Respiratory disturbance index - Wikipedia

    en.wikipedia.org/wiki/Respiratory_disturbance_index

    The respiratory disturbance index (RDI)—or respiratory distress Index—is a formula used in reporting polysomnography (sleep study) findings. Like the apnea-hypopnea index (AHI), it reports on respiratory distress events during sleep, but unlike the AHI, it also includes respiratory-effort related arousals (RERAs). [1]

  5. Sleep-related hypoventilation/hypoxemia due to lower airways obstruction 327.26 G47.36 Sleep-related hypoventilation/hypoxemia due to neuromuscular or chest wall disorders 327.26 G47.36 Other sleep-related breathing disorder: Sleep apnea/sleep related breathing disorder, unspecified 320.20 G47.30 Hypersomnias of Central Origin: Narcolepsy with ...

  6. Polysomnography - Wikipedia

    en.wikipedia.org/wiki/Polysomnography

    Polysomnography (PSG) is a multi-parameter type of sleep study [1] and a diagnostic tool in sleep medicine.The test result is called a polysomnogram, also abbreviated PSG.The name is derived from Greek and Latin roots: the Greek πολύς (polus for "many, much", indicating many channels), the Latin somnus ("sleep"), and the Greek γράφειν (graphein, "to write").

  7. Sleep efficiency - Wikipedia

    en.wikipedia.org/wiki/Sleep_efficiency

    Sleep efficiency (SE) is the ratio between the time a person spends asleep, and the total time dedicated to sleep (i.e. both sleeping and attempting to fall asleep or fall back asleep). It is given as a percentage. [1] SE of 80% or more is considered normal/healthy with most young healthy adults displaying SE above 90%.