| Potential factors |
Odds ratio |
95%CI |
p |
| Onset place of symptoms: outside obstetric facilities |
8.01 |
0.94 – 67.77 |
0.056 |
| Maternal transfer |
1.89 |
0.90 – 3.95 |
0.09 |
| Maternal age (> 40yrs) |
2.05 |
0.63 – 6.60 |
0.23 |
| Abnormal ultrasonographic findings |
1.77 |
0.68 – 4.60 |
0.24 |
| Abdominal pain |
1.96 |
0.85 – 4.51 |
0.12 |
| Genital bleeding |
0.47 |
0.22 – 1.02 |
0.057 |
| Blood transfusion |
2.21 |
1.02 – 4.76 |
0.042 |
|
