What are the statistics on non-birthing partner postnatal depression according to Katy Huie Harrison?

According to Katy Huie Harrison, up to 1 in 10 non-birthing partners experience postnatal depression. It's important to note that postnatal depression isn't exclusive to birthing mothers. Non-birthing partners can also experience significant mood changes and mental health challenges during the postpartum period.

Do you have any other questions about postnatal depression or mental health after childbirth?