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Table 1 Characteristics of the study participants in the two study groups

From: Maternal and neonatal outcomes in transverse and vertical skin incision for placenta previa

Variables

Total (n = 1098)

Vertical incision (n = 332)

Transverse incision (n = 766)

t/Z/χ2

P value

Age, years, mean±sd

32.56±5.34

32.94±5.54

32.40±5.25

−1.547

0.122

BMI, kg/m2, mean±sd

26.40±7.37

26.19±3.27

26.49±8.57

0.587

0.557

EGA at delivery, week, mean±sd

36.36±2.41

35.97±2.00

36.53±2.55

3.886

0.001

Preterm birth (EGA < 37 weeks), n, %

599 (54.6)

233 (70.2)

366 (47.8)

46.875

0.001

Gravidity, median [IQR]

3.00 (2.00–4.00)

3.00 (2.00–4.00)

2.00 (2.00–3.00)

−5.437

0.001

First pregnancy, n, %

202 (18.4)

32 (9.6)

170 (22.2)

24.318

0.001

In vitro fertilization, n, %

141 (12.8)

27 (8.1)

114 (14.9)

9.429

0.002

Previous CD, n, %

489 (44.5)

215 (64.8)

274 (35.8)

78.796

0.001

Number of previous CDs, median [IQR]

1.00 (1.00–2.00)

1.00 (1.00–2.00)

1.00 (1.00–1.00)

−10.190

0.001

Antepartum hemorrhage, n, %

467 (42.5)

150 (45.2)

317 (41.4)

1.366

0.259

Anterior placenta

386 (35.2)

195 (58.7)

191 (24.9)

116.076

0.001

Depth of invasion, n, %

     

Accreta

101 (9.2)

55 (16.6)

46 (6.0)

199.900

0.001

Increta

148 (13.5)

104 (31.3)

44 (5.7)

  

Percreta

9 (0.8)

8 (2.4)

1 (0.1)

  

Emergency CD, n, %

338 (30.8)

76 (22.9)

262 (34.2)

16.617

0.001

Operation time, minute, median [IQR]

55.00 (42.00–80.00)

85.00 (57.25–150.00)

47.50 (40.00–61.25)

−15.060

0.001

Incision-to-delivery intervals, minute, median [IQR]

6.00 (4.00–12.00)

12.00 (6.00–37.00)

5.00 (4.00–8.00)

−13.879

0.001

Neonatal weight, gram, median [IQR]

2745.00 (2400.00–3062.50)

2660.00 (2370.00–2920.00)

2790.00 (2420.00–3120.00)

−3.607

0.001

Male newborn, n, %

643 (58.6)

194 (58.4)

449 (58.6)

0.003

0.999

  1. BMI body mass index, CD cesarean delivery, EGA estimated gestational age, IQR interquartile range