Table 1 Study subjects’ characteristics

Maternal characteristics

Age (years)

28.83 ± 5.06

29.19 ± 5.02

0.5913

BMI (kg/m²)

20.53 ± 2.51

20.37 ± 2.07

0.676

Parity

1.2 ± 0.5

1.3 ± 0.7

0.2685

Gestational age at TVS (weeks)

19.74 ± 2.31

20.90 ± 1.79

< 0.001

CL (mm)

36.52 ± 5.07

32.05 ± 4.37

< 0.001

UCA (degrees)

83.80 ± 24.18

117.86 ± 20.25

< 0.001

UCA ≥ 95^o

309 (31.3%)

56 (88.9%)

< 0.001

Neonatal characteristics and outcomes

Gestational age at birth (weeks)

38.41 ± 0.90

34.36 ± 2.01

< 0.001

Birthweight (gram)

3182.79 ± 285.42

2412.69 ± 480.42

< 0.001

 C-section

410 (41.5%)

8 (12.7)

< 0.001

NICU admission

34 (3.44)

33(54.10)

< 0.001

Deaths

0

2

NA