TABLE 4.

Differentially abundant taxa in vitamin A–supplemented group compared with placebo during early infancy and at 2 y of age in male infants with birth weight below median¹

	Log2 fold change (SE)	P	Adjusted P
Early infancy
Phylum
Firmicutes	−0.261 (0.23)	0.26	0.96
Family
Gemellaceae	−0.646 (0.293)	0.037	0.86
Genus
Catenibacterium	0.714 (0.378)	0.062	0.81
2 y
Phylum
Bacteroidetes	0.485 (0.462)	0.29	0.83
Family
Porphyromonadaceae	−1.45 (0.466)	0.0031	0.095
Bacteroidaceae	−1.56 (0.644)	0.017	0.25
Eubacteriaceae	−0.6 (0.245)	0.025	0.25
Genus
Parabacteroides	−1.47 (0.458)	0.0023	0.14
Bacteroides	−1.57 (0.655)	0.019	0.43
Anaerostipes	−0.467 (0.193)	0.026	0.43
Faecalibacterium	1.16 (0.543)	0.035	0.43

¹Differential taxa abundance at phylum, family, and genus levels was determined by fitZIG mixture modeling during early infancy (average of 6, 11, and 15 wk; n = 66) and at 2 y of age (n = 57). Taxa with a P value <0.05 or the lowest one were selected for this table. Early-infancy microbiota data were adjusted for type of delivery and breastfeeding status. Microbiota data at 2 y were additionally adjusted for age group at 2 y (older and younger). False discovery rate–adjusted P value (adjusted P) was calculated by the Benjamin-Hochberg method.