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Subgroup analyses for the effects of probiotics on waist circumference.
| Subgroup | Number of trials | Number of participants | I 2 | Weighted mean difference |
|---|---|---|---|---|
| % | (95% CI) | |||
| Probiotics dosage | ||||
| ≥ 1010 CFU | 6 | 212 | 86.9 | -1.53 (-2.64, -0.41) |
| < 1010 CFU | 2 | 69 | 0 | -0.32 (-0.84, 0.20) |
| Number of probiotics species | ||||
| Single | 4 | 168 | 91.6 | -1.69 (-3.04, -0.33) |
| Multiple | 4 | 113 | 0 | -0.42 (-0.91, 0.07) |
| Form of probiotics | ||||
| Capsule or powder | 6 | 187 | 92.3 | -1.34 (-2.76, 0.08) |
| Food | 2 | 94 | 0 | -1.11 (-1.64, -0.59) |
