TABLE 1.

Participant characteristics of preterm infants.

	Probiotic- exposed (n = 8)	Unexposed to probiotic (n = 14)	p-value
Gestational age at birth, weeks	28.1 ± 1.65	27.5 ± 2.03	0.47
Cesarean delivery, N (%)	6 (75.0%)	10 (71.4%)	0.99
Birth weight, g	975 ± 284	1025 ± 308	0.71
Birth weight z-score	−0.46 ± 0.60	0.12 ± 0.82	0.09
Male, N (%)	3 (37.5%)	4 (28.6%)	0.99
Twins, N (%)	4 (50.0%)	2 (14.3%)	0.14
In-hospital samples collected during FloraBABY supplementation, N (%)	116/209 (55.5%)	0/364 (0%)	<0.001
Antibiotic exposure, days (N)	8.63 ± 9.44 (8)	15.3 ± 12.3 (13)	0.21
Weaned from breastmilk, N (%)	6 (75.0%)	7 (50.0%)	0.38
Postmenstrual age (PMA) at weaning from breastmilk, weeks	41.3 ± 3.35	44.8 ± 5.97	0.23

The data are presented as N (%) for categorical parameters and as mean ± SD for continuous variables. P-value < 0.05 using Student’s t-test or Mann-Whitney (continuous) or Fisher’s exact test (categorical) were considered to be statistically significant.