| 1 | Those effects lasted up to a year postpartum, they found. | |
| 2 | Out of the 100 women, 16 developed postpartum depression symptoms. | |
| 3 | The study also underlined how postnatal depression among mothers is much more common. | |
| 4 | A biological marker for postpartum depression may now have been discovered as well. | |
| 5 | This wealth of postpartum data yielded a surprising conclusion: there was no difference among the groups. |