. Author manuscript; available in PMC: 2018 Feb 1.

Published in final edited form as: J Allergy Clin Immunol. 2016 Oct 13;139(2):482–491.e14. doi: 10.1016/j.jaci.2016.08.045

Table 1.

Characteristics of Infants with age 3–6 months fecal flora sampling^**

	Infants in VDAART Cohort (N=810)	Infants with Fecal Flora Sampling (N=333)

	N (%)	N (%)
Gestational Age, weeks (mean, SD)	39.0 (1.9)	39.1 (1.9)
Child’s Race
Black	350 (43.1)	149 (44.7)
Hispanic	112 (13.8)	42 (12.6)
Caucasian	215 (26.5)	92 (27.6)
Other	133 (16.4)	50 (15.0)
Male	422 (52.1)	180 ( 54.1)
Breast Fed, Exclusively 1^st 6 mths^*	126 ( 17.0)	71 ( 21.7)
Breast Fed and formula supplemented 1^st 6 mths^*	287 (38.8)	107 (32.9)
Formula Fed, Exclusively 1^st 6 mths^*	328 (44.2)	147 (45.4)
C-section birth	240 (29.6)	108 ( 32.4)
Maternal antibiotics (during labor)^*	310 (38.5)	133 ( 40.1)
Infant antibiotics (1^st days of life)^*	78 (9.7)	26 (7.8)
Age at Fecal Flora Sampling, weeks (mean, SD)	NA	20.1 (4.6)
Cord Blood Vitamin D, ng/ml (mean, SD)		22.7 (11.9)

Numbers reflect some missing data

^**

All comparisons were p>0.05 for entire VDAART cohort vs. subset with stool samples for microbiome analysis