Table 2 Comparison of main outcomes between the study groups

GA at delivery (days)

261.56 ± 14.90

249.32 ± 17.23

244.24 ± 18.08

 < 0.001^a

GA at delivery (weeks)

37.36 ± 2.12

35.61 ± 2.46

34.88 ± 2.59

 < 0.001^a

Latency period (days)

41.06 ± 17.29

29.44 ± 15.65

22.20 ± 14.51

 < 0.001^a

Latency period (mean difference)

Group1&2

Group2&3

Group1&3

11.62 ± 3.29

7.32 ± 3.02

18.94 ± 3.20

Birth weight (2)

3042 ± 678

2424 ± 720

2341 ± 707

 < 0.001^a

Weight percentile

 < 5%

3 (6%)

3 (6%)

4 (8%)

 < 0.001^b

5–10%

0 (0%)

11 (22%)

12 (24%)

10–50%

22 (44%)

27 (54%)

24 (48%)

50–90%

23 (46%)

9 (18%)

10 (20%)

 > 90%

2 (4%)

0 (0%)

0 (0%)

Apgar score

10 (10–10)

9.5 (8–10)

8 (7–10)

 < 0.001^b

NICU admissions

11 (22%)

20 (40%)

22 (44%)

0.050^c

Mode of delivery

ND

26 (52%)

30 (60%)

15 (30%)

0.182^c

CS

24 (48%)

20 (40%)

35 (70%)

GA at delivery (weeks cat)

 > 37 weeks

35 (70%)

18 (36%)

11 (22%)

 < 0.001

 < 37 weeks

15 (30%)

32 (64%)

39 (78%)