Following treatment , both the AET ( 28 participants ) and CBT ( 25 participants ) intervention groups had less fatigue relative to the UC group ( 24 participants ) , with a difference of -9.1 for AET ( 95 % confidence interval [ CI ] -12.4 to -5.8 ) and -13.3 for CBT ( 95 % CI -16.5 to -10.2 ) .