However , there was no significant difference between groups for cannulation time ( 95 % CI , -0.6 to 7.6 seconds , P = 0.1152 ) , depth of artery ( 95 % CI , -0.07 to 0.57 mm , P = 0.1050 ) , and the diameter of the radial artery ( 95 % CI , -0.30 to 0.03 mm , P = 0.1153 ) .