Table 4 Difference in means between treatment and control groups for TC at final follow-up

Cabral et al. [57]

− 1.07 mmol/L*

− 2.49 to 0.36

Caraccio et al. [58]

− 0.30 mmol/L*

− 0.92 to 0.32

Duman et al. [60]

0.00 mmol/L*

− 0.98 to 0.98

Iqbal et al. [62]

− 0.10 mmol/L*

− 0.59 to 0.39

Liu et al. [64]

− 0.29 mmol/L**

− 0.54 to − 0.04

Mikhail et al. [66]

− 0.30 mmol/L*

− 0.58 to − 0.30

Monzani et al. [68]

− 1.56 mmol/L*

− 2.91 to − 0.20

Nagasaki et al. [69]

− 0.14 mmol/L**

− 0.54 to 0.26

Teixeira et al. [74, 75]

− 0.32 mmol/L*

− 1.79 to 1.16