Table 2

Subgroup analyses
Subgroups Number of studies Number of subjects MD (CI)* I2
Weight gain prevention 4 (a) 108 (b) 93 - 1.09 (−1.51, -0.68) 0 %
Weight loss 9 (a) 203 (b) 179 −0.86 (−1.38, -0.33) 49 %
Group intervention 9 (a) 203 (b) 189 −0.70 (−1.24, -0.15) 37 %
Individual intervention 4 (a) 108 (b) 83 −1.20 (−1.57, -0.83) 8 %
CBT 5 (a) 124 (b) 114 −0.66 (−1.15, -0.16) 41 %
Psychoeducation 8 (a) 187 (b) 158 −1.28 (−1.64, -0.93) 0 %
First-episode psychosis 1 (a) 28 (b) 33 −0.99 (−1.71, -0.27) N/A
Chronic psychosis 11 (a) 260 (b) 228 −0.92 (−1.34, -0.49) 39 %
Mixed sample 1 (a) 23 (b) 11 −1.30 (−2.02, -0.58) N/A
Physical activity 4 (a) 93 (b) 90 −1.22 (−1.59, -0.85) 2 %
No physical activity 9 (a) 218 (b) 182 −0.75 (−1.22, -0.28) 27 %
Diet 3 (a) 65 (b) 57 −1.31 (−1.78, -0.83) 21 %
No diet 10 (a) 246 (b) 215 −0.80 (−1.19, -0.42) 20 %

* Random-effects method, 95% CI.

(a) experimental group.

(b) control group.

Bonfioli et al.

Bonfioli et al. BMC Psychiatry 2012 12:78   doi:10.1186/1471-244X-12-78

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