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. Author manuscript; available in PMC: 2008 Oct 6.
Published in final edited form as: NMR Biomed. 2008 Oct;21(8):878–887. doi: 10.1002/nbm.1276

Table 1.

Factor loadings

Factor 1 Factor 2 Factor 3
Variance explained
    Eigenvalue 1.615 2.304 2.093
    Percentage 17.949 25.598 23.250
Loadingsa
    Cr −0.285 −0.479 −0.637
    NAA −0.130 0.884 0.013
    Glu 0.246 0.689 0.564
    Gln −0.195 0.209 −0.697
    GABA −0.412 0.229 0.679
    Gly −0.240 −0.030 0.633
    NAAG −0.879 −0.062 0.078
    Cho 0.596 −0.248 0.021
    MI 0.252 −0.810 0.118
a

Strong (0.6+) or moderate (0.4−0.6) loadings are shown in bold to indicate the metabolites involved in each factor. Concentrations of each metabolite were calculated by dividing its area by the total area of all metabolites of interest (Met/Σ).