Table 1 Cohort characteristics

From: Longitudinal gut virome analysis identifies specific viral signatures that precede necrotizing enterocolitis onset in preterm infants

Variable

Controls n = 14

Cases n = 9

Statistical significance

Gestational age at birth, weeks

25.5 (24.9–26.0)

25.0 (23.1–25.4)

NS, P = 0.19

Birth weight, g

810 (670–920)

780 (570–955)

NS, P = 0.82

Vaginal delivery

2 (14%)

4 (44%)

NS, P = 0.16

Male

5 (36%)

6 (67%)

NS, P = 0.21

1 and 5 min Apgar scores

2 (1–6) and 5.5 (2.8–6.3)

3 (1.5–5) and 5 (4.5–6)

NS, P = 0.93/NS, P = 0.96

Exposed to human milk during sampling period (yes)

13 (93%)

8 (89%)

NS, P > 0.99

Percentage of days of antibiotic exposure during the sampling period

25.3% (6.1–33.3%)

10.5% (0–29.4%)

NS, P = 0.25

Stool samples analysed per infant

7 (6–8)

4 (4–6)

P = 0.01

  1. Statistical significance assessed by two-sided Mann–Whitney U-test for continuous variables and two-sided Fisher’s exact test for categorical variables. NS, not significant. Data are expressed as the median (IQR) or number (percentage) as appropriate.
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