| TPO | Control | Abortion | Preterm | IUGR | Total | |
| +ve | N | 1 | 4 | 3 | 1 | 9 |
| % | 5.0% | 20.0% | 15.0% | 5.0% | 11.3% | |
| -ve | N | 19 | 16 | 17 | 19 | 71 |
| % | 95.0% | 80.0% | 85.0% | 95.0% | 88.8% | |
| Chi-square | X2 | 9.237 | ||||
| P-value | 0.026* | |||||