Infertility and spontaneous abortion - Spontaneous abortion, habitual abortion
Chromosomal complements in spontaneous abortions recognized clinically in the first trimester
| Complement |
Frequency |
(%) |
| Normal or 46, XY or 46,XX |
54.1 |
|
| Triploidy |
7.7 |
|
| Tetraploidy |
2.6 |
|
| Monosomy X |
8.6 |
|
| Structural abnormalities |
1.5 |
|
| Sex chromosomal polysomy |
0.2 |
|
| Autosomal monosomy (G) |
0.1 |
|
| Autosomal trisomy |
22.3 |
|
| - No. 1 |
0 |
|
| - No. 2 |
1.11 |
|
| - No. 3 |
0.25 |
|
| - No. 4 |
0.64 |
|
| - No. 5 |
0.04 |
|
| - No. 6 |
0.14 |
|
| - No. 7 |
0.89 |
|
| - No. 8 |
0.79 |
|
| - No. 9 |
0.72 |
|
| - No. 10 |
0.36 |
|
| - No. 11 |
0.04 |
|
| - No. 12 |
0.18 |
|
| - No. 13 |
1.07 |
|
| - No. 14 |
0.82 |
|
| - No. 15 |
1.68 |
|
| - No. 16 |
7.27 |
|
| - No. 17 |
0.18 |
|
| - No. 18 |
1.15 |
|
| - No. 19 |
0.01 |
|
| - No. 20 |
0.61 |
|
| - No. 21 |
2.11 |
|
| - No. 22 |
2.26 |
|
| Double trisomy |
0.7 |
|
| Mosaic trisomy |
1.3 |
|
| Other abnormalities or not specified |
0.9 |
(Data compiled from multiple sources. Simpson JL, Bombard AT: Chromosomal abnormalities in spontaneous abortion: Frequency, pathology, and genetic counseling. In Bennet MJ, Edmonds EK (eds): Spontaneous and Recurrent Abortion, p 51, London, Blackwell Scientific Publications, 1987.)
Edited by Aldo Campana,