Table 1 Study cohort characteristics of preterm infants.

From: Variable preterm oral microbiome stabilizes and reflects a full-term infant profile within three months

Ā 

(n = 50)

DHA supplementation (yes, %)

26 (52.0)

Gestational age at birth (weeks, median ± SD)

26.4 (±1.7)

(Postnatal) age at collection (days; median ± SD)

Ā T1

4.2 (±1.6)

Ā T2

65.7 (±14.6)

Ā Sex (male, %)

27 (54.0)

Ā Singleton birth (n, %)

35 (70)

Ā Birth type (n, %)

Ā Vaginal

17 (34.0)

Ā C.S. in labor

12 (24.0)

Ā C.S. no labor

21 (42.0)

Enteral feeds on discharge (n, %)

Ā Breastmilk

25 (50.0)

Ā Formula

18 (36.0)

Ā Breastmilk and formula

6 (12.0)

Unknown

1 (2.0)

BPDa (n,%)

20 (42.0)

Sepsis (n, %)

13 (26.0)

Collected samples for both time points (n, %)

41 (82.0)

Infants with tracheal aspirate collected (n, %)

14 (28.0)

Ā 

(n = 40)b

Probiotics (n, %)

39 (97.5)

Antibiotics (n, %)

39 (97.5)

Number of antibiotic doses (median ± SD)

26 (±44.6)

Antifungals (n, %)

39 (97.5)

Number of antifungal doses (median ± SD)

55 (±57.7)

  1. BPD bronchopulmonary dysplasia, C.S. caesarean section.
  2. aTwo subjects did not have information recorded for BPD.
  3. bTreatment information was only available for 40 subjects.