The mean change in daytime ambulatory systolic blood pressure at 6 months was -158 mm Hg ( 95 % CI -197 to -119 ) in the renal denervation group and -99 mm Hg ( -136 to -62 ) in the group receiving SSAHT alone , a baseline-adjusted difference of -59 mm Hg ( -113 to -05 ; p = 00329 ) .