Description and validation of the apnea risk evaluation system: a novel method to diagnose sleep apnea-hypopnea in the home.

Study Objectives: To evaluate the accuracy and practicality of the Apnea Risk Evaluation System (ARES; Advanced Brain Monitoring; Carlsbad, CA), a limited-channel system for diagnosing sleep apnea/hypopnea in the home.

Design: Prospective randomized study with blinded analysis.

Settings: Two independent, community-based, sleep-disorders centers and the participants' homes.