Berlin and Epworth Surveys to Predict Obstructive Sleep Apnea for Adults on Biomimetic Oral Appliance Therapy: A Nonrandomized Clinical Trial

Table 2

Correlations between total AHI/hr and the BQ and the ESS scores.

Correlation	AHI (r)	AHI (before)	AHI (after)
Berlin	−0.420
Epworth	−0.418
Berlin (before)		−0.389
Berlin (after)			−0.356
Epworth (before)		−0.145
Epworth (after)			−0.478