Table VI.

Genera (or lowest identifiable taxonomic level) identified as significantly different (false discovery rate <.05) between breastfed and formula-fed infants, after adjustment for age, mode of delivery, maternal diet, whether the child was on solid foods at the time of stool collection, and study treatment, stratified by child race/ethnicity

Races/ethnicities	Phylum	Genus (or lowest identified taxonomic level)	β-coefficient*	P value	FDR
African American	Firmicutes	Lactobacillus	0.009573	.0009	0.03
	Firmicutes	Clostridiales	−0.03832	.002	0.04
	Firmicutes	Lachnospiraceae	−0.10325	.002	0.04
	Firmicutes	Ruminococcaceae	−0.09866	.003	0.04
Hispanic	Firmicutes	Staphylococcus	0.006749	3.80 × 10−05	0.002
	Firmicutes	Lachnosp raceae	−0.10673	4.29 × 10−05	0.002
	Firmicutes	Blautia	−0.10623	.0001	0.004
	Firmicutes	Peptostreptococceceae	−0.0237	.0002	0.005
	Firmicutes	Ruminococcaceae	−0.04456	.0007	0.01
	Firmicutes	Lactobacillus	0.011634	.0009	0.02
White	Firmicutes	Eubacterium	−0.04486	8.67 × 10−05	0.008
	Firmicutes	Clostridiales	−0.03179	.0008	0.04

Results shown for negative binomial regression analyses. β-coefficient is reflects the average difference in relative abundance between the breastfed and formula-fed groups after covariate adjustment.

^*Formula fed is reference group.