From: Prediction of miscarriage in first trimester by serum estradiol, progesterone and β-human chorionic gonadotropin within 9 weeks of gestation
Groups
Number of cases
Age (years old)
Cases with number of pregnancy
Cases with parity
1
2
3
0
Normal pregnancy
94
34.7± 6.7
52
37
5
90
4
Miscarriage
71
32.5± 8.9
41
23
7
69
P
0.07#
0.440#, a
0.481#, a