| Gravity | Number | % |
| Primi | 48 | 48 |
| 2 - 4 | 46 | 46 |
| ≥5 | 6 | 6 |
| Parity | Number | % |
| Nullipara | 52 | 52 |
| 1 - 4 | 44 | 44 |
| ≥5 | 4 | 4 |
| Abortion | Number | % |
| No abortion | 80 | 80 |
| One | 15 | 15 |
| Two | 5 | 5 |
| Total | 100 | 100 |