Table 4 Comparison of factors between pregnancy loss and live birth groups in patients with SCH (n = 557).

From: Association between first-trimester subchorionic hematoma and pregnancy loss before 20 weeks of gestation in singleton pregnancies

Characteristics

Miscarriage < 20 weeks of gestation N = 55

Live birth N = 502

P-value

Age, y

28.6 ± 4.57

29.5 ± 4.14

0.154

Basal BMI

21.6 ± 3.09

21.6 ± 3.35

0.918

Vaginal bleeding

30(54.5%)

183(36.5%)

0.009

Gestational age (week) at diagnosis (median, IQR)

7.0(5.0–7.6)

7.4(6.7–8.2)

0.002

Gestational age (week) at SCH peak (median, IQR)

7.0(7.0–8.0)

8.0(7.3–9.0)

 < 0.001

Size of SCH

  

0.815

small SCH

16(29.1%)

127(25.3%)

 

medium SCH

29(52.7%)

284(56.6%)

 

large SCH

10(18.2%)

91(18.1%)

 

Use of dydrogesterone, n

31(56.4%)

390(77.7%)

< 0.001