Table 2.

Sample group characteristics summarized according to the different vaginal microbial communities found in this study

	Cluster 1 (n = 7)	Cluster 2 (n = 6)	Cluster 3 (n = 14)	p-values
Mothers’ characteristics
Gestational age (weeks)***	39.77 ± 1.0	39.14 ± 1.1	39.73 ± 1.1	0.5*
Mother’s age (years)	27.14 ± 7.4	24.33 ± 3.6	23.71 ± 6.0	0.3931**
Number of pregnancies	2.3 ± 1.1	2.3 ± 0.5	1.7 ± 0.9	0.2308**
Prenatal visits	6.71 ± 2.14	8.17 ± 1.72	7.14 ± 1.92	0.3801**
Newborns’ characteristics
Weight at birth (g)	3362.86 ± 414.82	3370.83 ± 279.15	3924.43 ± 270.78	0.838*
Length (cm)	48.92 ± 1.5	48.5 ± 1.61	48.54 ± 0.82	0.782*
APGAR 1	8.29 ± 1.25	8.67 ± 0.52	8.21 ± 2.33	0.7581**
APGAR 5	9.14 ± 0.69	9.67 ± 0.52	9.29 ± 0.83	0.3412**
Head circumference (cm)	33.17 ± 1.51	33.5 ± 1	34.14 ± 1.51	0.337*
Thoracic circumference (cm)	33.67 ± 1.37	33.58 ± 1.24	33.54 ± 1.25	0.978*

Values expressed in means and standard deviations of the mean

*ANOVA

**Kruskal–Wallis rank sum test

***Gestational age for delivery time and sample collection time