Table 3 Pregnancy outcomes associated with 56 cases of chromosomal inversion.

From: Frequency and clinical significance of chromosomal inversions prenatally diagnosed by second trimester amniocentesis

Factor

Number (total n = 56)

Percent

Type

Pericentric

35

62.5%

Paracentric

21

37.5%

Heredity

Maternal

18

47.4% (18/38)

Paternal

16

42.1% (16/38)

De novo

4

10.5% (4/38)

Unknown

18

 

Sex

Male

25

44.6%

Female

31

55.4%

Pregnancy outcome

Live birth

53

94.6%

Elective termination

3*

5.4%

Fetal death

0

 

Major structural defect/systemic disease

Yes*

2

3.6%

No

54

96.4%

  1. *CNS defects in two and one thalassemia major.