 He slept in all positions and during the night had 9 respiratory events, one was a postarousal central event, the other eight were obstructive hypopneas mean duration 26 seconds, little worse in the supine position where his AHI was 4.7, but overall his AHI was 1.3. 
He slept in all positions and during the night had 9 respiratory events , one was a postarousal central event , the other eight were obstructive hypopneas mean duration 26 seconds , little worse in the supine position where his AHI was 4.7 , but overall his AHI was 1.3 .