Divorce or Separation Following Postpartum Psychiatric Episodes: A Population-Based Cohort Study

Area of Science:

• Psychiatry
• Public Health
• Sociology

Background:

• Psychiatric disorders are a known risk factor for marital separation.
• 10-15% of new mothers experience postpartum psychiatric episodes (PPEs).
• No prior research has examined the impact of PPEs on divorce rates in new families.

Purpose of the Study:

• To investigate and quantify the probability of divorce or separation among women with mild/moderate or severe PPEs compared to those without PPEs.
• To assess the relationship between the severity of postpartum psychiatric episodes and the likelihood of subsequent divorce.

Main Methods:

• A cohort study utilizing Danish national registers.
• Included primiparous, cohabiting women without prior psychiatric history who gave birth between 1996-2014.
• Categorized PPE status at 6 months postpartum as mild/moderate, severe, or none, and tracked cohabitation status over time.

Main Results:

• Included 266,771 new mothers; 4,442 had mild/moderate PPE and 1,141 had severe PPE.
• Women with mild/moderate PPE had a 23% higher probability of divorce (aHR=1.23).
• Women with severe PPE had a 64% higher probability of divorce (aHR=1.64), indicating a dose-response relationship.

Conclusions:

• Experiencing a first-ever PPE after childbirth increases the likelihood of divorce.
• A clear dose-response relationship exists between PPE severity and divorce probability.
• Findings underscore the importance of addressing maternal mental health for marital stability.