There were also no statistically significant differences between interfaces for scores on the Epworth Sleepiness Scale ( -0.7 [ -3.1 -1.7 ] ; P = 0.20 ) , obstructive sleep apnea symptoms ( -7.7 [ -17.7 -2.4 ] ; P = 0.052 ) , CPAP compliance ( 0.3 [ -0.5 -1.1 ] h/night ; P = 0.50 ) , CPAP pressure ( 0.05 [ -0.66 -0.76 ] cmH20 ; P = 0.73 ) , CPAP side effects scores ( -2.0 [ -5.3 -1.4 ] ; P = 0.23 ) , or mask preference ( P = 0.407 ) .
