Correlation Between the Epworth Sleepiness Scale and the Maintenance of Wakefulness Test in Patients With Narcolepsy Participating in Two Clinical Trials of Sodium Oxybate

In evaluating pathologic sleepiness, the Epworth Sleepiness Scale (ESS) assesses subjective sleep propensity; the Maintenance of Wakefulness Test (MWT) is an objective measure of the ability to stay awake. This analysis evaluated the strength of the correlation between ESS and MWT with regard to absolute values in scores.

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