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. 2015 Jun 30;11(3):145–150. doi: 10.12965/jer.150204

Table 3.

Mean values of DBP measured pre and post treatment in groups A, B, and C

Pre treatment Post treatment Percentage of improvement % t-value P-value


Mean±SD Mean±SD
Group A 92.61±4.32 88.43±3.62 3.74 4.685 0.001

Group B 93.10±4.52 81.66±5.71 11.65 14.241 0.001

Group C 94.21±4.36 78.80±3.38 16.31 15.019 0.001