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Cohort study, 1993

When are new mothers most likely to get depression - right after birth or later?

Depression peaked at 10 weeks after birth, not immediately afterward. PMS before pregnancy was only linked to postpartum depression once women's periods restarted.

Moderate study design 293 women followed from pregnancy through 34 weeks postpartum

What they did

They followed 293 women from 32 weeks of pregnancy through 34 weeks after birth, measuring depression at multiple time points roughly every 6 weeks.

What they found

Depression rates ranged from 7 to 14%, with the highest at 10 weeks postpartum. Women were significantly more depressed at 10 weeks compared with pregnancy and the first few weeks after birth. Different women were depressed at different time points, not the same group throughout. PMS was only significantly related to postpartum depression once menstruation restarted.

What it means for you

Postpartum depression often arrives weeks after birth, not right away. A history of PMS becomes relevant to postpartum mood once your cycle restarts. The study tracked women through pregnancy and the postpartum period only, so we don't know about longer-term patterns.

293

women

7-14%

prevalence of depression postpartum

10 weeks

peak depression timing after birth

About the study

Original title
Prevalence of post partum depression--or is it post-puerperium depression?
Authors
Pop VJ, Essed GG, de Geus CA et al.
Journal
Acta obstetricia et gynecologica Scandinavica
Year
1993
Study design
Cohort study
Participants
293
What was tested
None - observational longitudinal study

Topics