| LBPP of 3 months postpartum | p-value | |||
| yes | no | |||
| LBPP of 1st trimester | yes | 27 | 8 | <0.001 |
| no | 4 | 16 | ||
| LBPP of 2nd trimester | yes | 28 | 15 | 0.016 |
| no | 3 | 9 | ||
| LBPP of 3rd trimester | yes | 27 | 19 | 0.335 |
| no | 4 | 5 | ||
| LBPP of 1 week postpartum | yes | 28 | 16 | 0.033 |
| no | 3 | 8 | ||
| LBPP of 1 month postpartum | yes | 27 | 11 | 0.001 |
| no | 4 | 13 | ||