Table 5 Association of UAT and iSUA with perinatal outcomes

Cesarean delivery

33 (37.1)

52 (43.7)

29 (63.0)

0.076

< 0.001

0.026

Gestational age at delivery (week)

39.39 ± 1.025

38.70 ± 1.656

37.07 ± 3.134

0.027

< 0.001

< 0.001

Preterm birth

1 (1.1)

10 (8.4)

20 (43.5)

0.210

< 0.001

< 0.001

Stillbirth

0 (0.0)

0 (0.0)

1 (2.2)

> 0.999

0.736

0.736

Weight of placenta (g)

512.58 ± 54.450

507.40 ± 69.584

469.78 ± 73.221

0.183

< 0.001

0.004

Fetal weight (g)

3342.67 ± 341.160

3068.66 ± 563.086

2756.20 ± 738.249

< 0.001

< 0.001

0.001

FGR

1 (1,1)

15 (12.6)

18 (39.1)

0.014

< 0.001

< 0.001

Macrosomia

2 (2.2)

4 (3.4)

2 (4.3)

0.712

0.460

0.654

Oligohydramnios

2 (2.2)

6 (5.0)

5 (10.9)

0.525

0.020

0.064

Polyhydramnios

0 (0.0)

1 (0.8)

1 (2.2)

> 0.999

0.060

0.058

Meconium-stained amniotic fluid

12 (13.5)

9 (7.6)

6 (3.6)

0.424

0.942

0.474

Neonatal asphyxia

0 (0.0)

7 (5.9)

10 (21.7)

0.058

< 0.001

0.001

Apgar score-1 min

10 (10, 10)

10 (10, 10)

10 (9, 10)

0.157

< 0.001

0.014

Apgar score-5 min

10 (10, 10)

10 (10, 10)

10 (10, 10)

0.552

0.012

0.040

IAI

0 (0.0)

20 (43.5)

17 (40.0)

< 0.001

< 0.001

< 0.001