A meta-analysis of 43 studies found that paternal depression increases during pregnancy and the postpartum period, with rates of around 10% during pregnancy and 25% from 3-6 months postpartum. While paternal depression is more likely when the mother is depressed, maternal depression does not strongly predict paternal mood disorders. Paternal depression can negatively impact infant development and may also contribute to weight gain in fathers. As such, screening and interventions for depression should target the parental couple rather than just individual parents.