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. 2014 Aug 1;37(8):1353–1361. doi: 10.5665/sleep.3930

Figure 5.

Figure 5

Comparison of respiratory cycle-related electroencephalographic changes (RCREC) between control and sleep disordered breathing (SDB) groups in the overall electroencephalograph and in delta, theta, alpha, sigma, and beta frequency bands with respect to sleep stage (A) at baseline (B) at follow-up PSG (* P < 0.05, ** P < 0.01 using two-way analysis of variance). ∧ indicates significant interaction effect between baseline and follow-up studies in frequency band-specific RCREC (∧ P < 0.05, ∧∧ P < 0.01). REM, rapid eye movement sleep; SWS, slow wave sleep.