Table 5.
Model | Meta-regression (t-distribution), P value | Permutation test, P value |
---|---|---|
1. Methodological covariates (N = 22): | ||
Appropriate blinding | 0.033 | 0.047 |
Heterogeneity (I2) | 98.1% | |
2. Participant level and intervention level covariates (N = 17): | ||
Length of trial | 0.001 | 0.003 |
Control group TG baseline | 0.008 | 0.016 |
Dose of garlic | 0.031 | 0.036 |
Heterogeneity (I2) | 87.0% |