Table 1 Baseline characteristics of participants

Maternal age (years)

28.60 ± 4.04

26.53 ± 4.55

28.71 ± 3.98

0.017^a

GA on admission (days)

220.50 ± 13.30

219.88 ± 13.81

222.04 ± 12.84

0.707^a

GA on admission (weeks)

31.50 ± 1.90

31.41 ± 1.97

31.72 ± 1.83

0.69^a

GA on admission categories (N (%))

 28 ≤ GA < 30

10 (20%)

16 (32%)

11 (22%)

0.55^b

 30 ≤ GA < 32

12 (24%)

8 (16%)

13 (26%)

 32 ≤ GA < 35

28 (56%)

26 (52%)

26 (52%)