Figure 4. Intraclass correlation of fecal metabolites in MZ and DZ twins.
The intraclass correlation coefficients (ICCs) were calculated from variance components of a one-way analysis of variance separately for monozygotic (MZ, n=148 pairs) and dizygotic (DZ, n=155 pairs) twins for each metabolite. Positive values of their respective differences indicate more similar metabolic profiles between MZ than DZ twins.