Table 14 Difference in means between treatment and control groups for BMI at final follow-up

Caraccio et al. [58]

1.30 kg/m²*

− 0.33 to 2.93

Caraccio et al. [59]

− 0.40 kg/m²*

− 2.52 to 1.72

Duman et al. [60]

− 0.70 kg/m²*

− 2.91 to 1.51

Iqbal et al. [62]

1.40 kg/m²*

− 1.06 to 3.86

Liu et al. [64]

− 0.10 kg/m²**

− 0.51 to 0.31

Monzani et al. [67]

0.00 kg/m²*

− 3.22 to 3.22

Monzani et al. [68]

− 1.20 kg/m²*

− 3.34 to 0.94

Nagasaki et al. [69]

− 0.30 kg/m²**

− 1.26 to 0.66

Stott et al. [73]

0.0 kg/m²*

− 0.02 to 0.02

Teixeira et al. [74, 75]

2.90 kg/m²*

0.38–5.42

Yazici et al. [76]

− 0.20 kg/m²*

− 2.10 to 1.70