Hypoallergenic formula with Lactobacillus rhamnosus GG for babies with colic: A pilot study of recruitment, retention, and fecal biomarkers

Table 1 Comparison of baseline characteristics of randomized patients in the two study groups

	LGG+ group		LGG- group
Continuous variables	n	mean ±SD	n	mean ± SD	P
Age at the time randomized (d)	9	57 ± 30	11	68 ± 28	0.341
Gestational age (wk)	9	38 ± 2	11	37 ± 2	0.201
Birth weight (kg)	9	3.1 ± 0.8	11	2.9 ± 1.1	0.471
Birth height (cm)	7	51.6 ± 1.8	9	47.2 ± 5.3	0.041
Discrete variables	n	mean ± SD	n	mean ± SD
Gender	9		11
Female		4 (44.4)		4 (36.4)	1.0
Male		5 (55.6)		7 (63.6)
Race	9		11		1.0
African-american		3 (33.3)		4 (36.4)
Caucasian		6 (66.7)		7 (63.6)
Ethnicity	9		11		1.0
Hispanic or latino		2 (22.2)		2 (18.2)
Not hispanic or latino		7 (77.8)		9 (81.8)
Partial breast feed	9		11		1.0
Yes		3 (33.3)		3 (27.3)
No		6 (66.7)		8 (72.7)
Formula type	9		11
Earth’s best		1 (11.1)		0 (0)
Enfamil		1 (11.1)		0 (0)
Enfamil gentleease		1 (11.1)		0 (0)
Gerber good start		0 (0)		1 (9.1)
Isomil		1 (11.1)		1 (9.1)
Neocate		0 (0)		1 (9.1)
Nutramigen ready mix		0 (0)		1 (9.1)
Similac		2 (22.2)		0 (0)
Similac advance		1 (11.1)		0 (0)
Similac senstive		0 (0)		5 (45.5)
Breast milk		2 (22.2)		2 (18.2)

¹Denotes P values obtained by non-parametric Wilcoxon rank sum test. All other P values are obtained by Fisher’s exact test. The values in parentheses indicate percentage.