Table 13 Difference in means between treatment and control groups for DBP at final follow-up

Liu et al. [64]

− 1.00 mmHg**

− 3.34 to 1.34

Mainenti et al. [65]

− 5.4 mmHg*

− 11.08 to 0.28

Monzani et al. [67]

3.80 mmHg*

− 2.42 to 10.02

Monzani et al. [68]

− 3.00 mmHg*

− 7.97 to 1.97

Nagasaki et al. [69]

− 0.10 mmHg**

− 4.22 to 4.02

Stott et al. [73]

− 0.1 mmHg*

− 1.5 to 1.3

Yazici et al. [76]

− 0.50 mmHg*

− 5.53 to 4.53

Zhao et al. [77]

− 0.13 mmHg*

− 2.42 to 2.16