Infertility and spontaneous abortion - Spontaneous abortion, habitual abortion
Intrauterine mortality
Number of conceptions expected to reach each stage of pregnancy
J Kline, Conception to birth—epidemiology of prenatal development, Monographs in Epidemiology and Biostatistics, Oxford University Press, Oxford (1989).
Intrauterine mortality table
|
Weeks after fertilization |
Ongoing pregnancies |
Chromosome abnormalities |
|
0 |
100 |
|
|
1 |
82 |
Trisomy 17 |
|
2 |
50 |
|
|
3 |
Trisomy 16, tetraploidy |
|
|
4 |
Trisomy 22 |
|
|
5 |
Triploidy |
|
|
6 |
44 |
Monosomy X |
|
10 |
40.5 |
|
|
14 |
38.6 |
|
|
18 |
38.0 |
|
|
22 |
37.6 |
|
|
26 |
37.5 |
|
|
30 |
37.4 |
|
|
34 |
37.3 |
|
|
38 |
37.1 |
|
|
Live births |
36.9 |
Modified from Leridon H (1977) Human fertility. Chicago Press.
Edited by Aldo Campana,