At 12 months , there was a significant decrease noted in the hours per day of sedentary time in both the health coaching ( -1.21 ; 95 % confidence interval [ 95 % CI ] , -1.71 to -0.70 ) and usual-care groups ( -0.55 ; 95 % CI , -1.06 to -0.05 ) , but the between-group difference was not found to be statistically significant ( -0.65 ; 95 % CI , -1.37 to 0.06 [ P = .07 ] ) .