Table 1.

Combining individual-level dataset 1: RMSE values on log scale, obtained for the MetaHD approach and other existing meta-analysis methods for metabolomics data.^b

Method	Non-changing	3-fold	5-fold
MetaHD	6.8	45.1	4.6
Univariate fixed effects model	13.8	50.3	17.7
Univariate fixed/random effects modela	10.2	47.2	18.6
Univariate random effects model	10.2	47.2	18.6
Fold-change combination	10.2	48.6	19.7

^aBased on heterogeneity.

^bValues are in hundreds and the smallest value in each fold-change category is shown in boldface type.