Postpartum Depression and Anxiety Onset

Depression Timeline

Postpartum depression and anxiety most commonly manifest within the first 12 weeks after delivery, with peak prevalence occurring around 8-12 weeks postpartum, according to The Lancet Global Health 1, 2
At 8 weeks postpartum, the prevalence of postpartum depression is 12.9%, as reported by The Lancet Global Health 1, 2
At 12 weeks postpartum, the peak prevalence of postpartum depression is 17.4%, as reported by The Lancet Global Health 1, 2
At 24 weeks postpartum, the prevalence of postpartum depression decreases to 13.6%, as reported by The Lancet Global Health 1, 2
The first 4-6 weeks represent the highest-risk period for symptom onset, though depression can develop at any point up to one year postpartum, as defined by the DSM-5 and ICD-10 3, 4
Prevalence continues to increase through the first year, with rates of 16% at 4-6 months, 20% at 7-12 months, and 25% beyond 12 months in women without prior depression history, as reported by The Lancet Global Health 1, 2

Postpartum anxiety disorders have a prevalence of 9.6% at 5-12 weeks postpartum, as reported by The Lancet Global Health 1, 2
At 1-24 weeks postpartum, the prevalence of postpartum anxiety disorders is 9.9%, as reported by The Lancet Global Health 1, 2
Beyond 24 weeks, the prevalence of postpartum anxiety disorders is 9.3%, as reported by The Lancet Global Health 1, 2
The overall pooled prevalence of postpartum anxiety disorder is 16%, with self-reported anxiety symptoms reaching 24.4%, as reported by The Lancet Global Health 1, 2

Nearly 3 in 5 women (57.4%) with depression at 9-10 months postpartum did not report symptoms at 2-6 months, indicating that many cases emerge later in the postpartum period, as reported by The Lancet Global Health 1, 2
Do not assume that women who screen negative in the early postpartum period are protected from developing depression or anxiety later, as the evidence clearly shows that depression prevalence actually increases over time, with higher rates at 7-12 months than at earlier time points, as reported by The Lancet Global Health 1, 2