|
|
|
|
|
lower range |
Upper range |
delivery times |
|
17.104 |
<0.001 |
2.046 |
1.457 |
2.873 |
cesarean section times |
|
30.252 |
<0.001 |
|
|
|
0-1 |
87.3 |
|
|
1.000 |
|
|
≥2 |
12.7 |
|
|
4.985 |
2.812 |
8.837 |
Interval between previous cesarean section and current deliver (years) |
|
5.351 |
0.021 |
0.951 |
0.911 |
0.992 |
placental implantation under ulreasound |
|
55.655 |
<0.001 |
|
|
|
no |
63.7 |
|
|
1.000 |
|
|
yes |
18.9 |
|
|
3.788 |
2.474 |
5.800 |
suspecious |
17.4 |
|
|
3.143 |
2.056 |
4.805 |
placental implantation under MRI |
|
57.059 |
<0.001 |
|
|
|
no |
16.7 |
|
|
1.000 |
|
|
yes |
5.6 |
|
|
11.892 |
4.846 |
29.185 |
suspecious |
13.5 |
|
|
7.230 |
3.996 |
13.083 |
do not perform MRI |
64.1 |
|
|
3.047 |
1.993 |
4.657 |
placental implantation during operation |
|
142.683 |
<0.001 |
|
|
|
no |
|
|
|
1.000 |
|
|
yes |
|
|
|
9.858 |
6.713 |
14.478 |
suspecious |
|
|
|
2.241 |
1.466 |
3.426 |
Type of placenta previa |
|
26.573 |
<0.001 |
|
|
|
marginal |
25.7 |
|
|
1.000 |
|
|
partial |
5.1 |
|
|
1.044 |
.516 |
2.115 |
complete |
69.1 |
|
|
2.327 |
1.657 |
3.268 |