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Table 1 Clinical data of the PAT and PAF groups

From: Prenatal and postnatal antibiotic exposure influences the gut microbiota of preterm infants in neonatal intensive care units

Clinical data

PAT infants

PAF infants

Statistical method

P value

Gestational age (d)

227.6 (mean) ± 7.6 (SD)

229.1 ± 7.3

Student’s t test

0.09

Birth weight (g)

1777.08 ± 297.1

1814.16 ± 169.14

Student’s t test

0.711

Delivery mode (CS/VD)

3/9

3/9

Chi square test

1

Gender (male/female)

11/1

8/4

Chi square test

0.009

Feeding (premature infant formula/mixed feeding/breastfeeding)

4/3/5

4/3/5

Chi square test

1

Postnatal antibiotic (d)

7 (ranging 3–13)

7 (ranging 3–14)

Non-parametric test

0.671

PROM

12/0

6/6

Chi square test

NA

Histological chorioamnionitis (positive/negative/no. of inspection)

3/6/3

2/6/4

Chi square test

NA

  1. VD vaginally delivered, CS cesarean section, PROM premature rupture of membranes