Table 2. Changes in Office Blood Pressure at Baseline and After 6- and 12-Month Interventions.

Outcome	Study group, mean (SD)		Mean between-group difference in change (95% CI)	P value
Outcome	Tai Chi group (n = 173)	Aerobic exercise group (n = 169)	Mean between-group difference in change (95% CI)	P value
Office SBP at baseline, mm Hg	132.4 (6.0)	132.6 (6.0)	NA	.74
Mean change in office SBP, mm Hg
6 mo	−6.18 (8.00)^a	−3.88 (7.30)^a	−2.31 (−3.94 to −0.67)	.006
12 mo	−7.01 (10.12)^a	−4.61 (8.47)^a	−2.40 (−4.39 to −0.41)	.02
Office DBP at baseline, mm Hg	84.2 (4.9)	84.5 (4.7)	NA	.58
Mean change in office DBP, mm Hg
6 mo	−3.52 (4.23)^a	−2.60 (4.53)^a	−0.92 (−1.86 to 0.01)	.052
12 mo	−3.73 (6.21)^a	−2.56 (6.54)^a	−1.17 (−2.53 to 0.19)	.09

Abbreviations: DBP, diastolic blood pressure; NA, not applicable; SBP, systolic blood pressure.

^{^a}

Significantly different from baseline to post intervention (P < .001).