Fig. 1

Partial Pearson correlations between metabolites identified as associated with breast cancer risk, and age (N = 2358). Metabolite concentrations were log-transformed and normalized as described in the “Methods” section. Coefficients are shown only for significant correlations (P-value < 0.05). Correlations between metabolite concentrations are adjusted for center and age, and correlations between metabolites and age are adjusted for center. Abbreviations: C2, acetylcarnitine; PC aa, phosphatidylcholine diacyl; PC ae, phosphatidylcholine acyl-alkyl