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. 2023 Jan 12;8(2):246–259. doi: 10.1038/s41564-022-01293-8

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© The Author(s) 2023, corrected publication 2023

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Extended Data Fig. 6 — a, Same as Fig. 3a, but with each microbial taxa represented as an individual node. b, Volcano plot where every point represents a microbe–metabolite association. X-axis displays the difference between spearman ρ’s calculated separately among Black and White women. Y-axis displays the significance of the difference, using the two-sided Fisher’s R-to-z transform. Horizontal maroon line designates p = 0.05. Gold points indicate associations where there is a difference in sign between the correlations among Black and White women. c, d, Same as a, for associations only among Black (c) and White (d) women. e, Same as a, for metabolites associated with extremely or very PTB among Black women. f, Same as b, for difference in associations between Black women who delivered extremely or very preterm and the rest of the Black women in the cohort.