Although they showed desirable values , oxygen saturation was significantly lower in left lateral decubitus ( 96.6 1.7 % ) when compared to the supine ( 97.1 1.3 % ) and prone positions ( 97.4 1.1 % ) ( p = 0.00 ) and was also significantly lower in right lateral decubitus ( 96.9 1.4 % ) when compared to the prone position ( p = 0.00 ) .