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Divorce is associated with increased rates of depression, both before and after the actual divorce. Several explanations have been proposed, including those based on “stress diathesis” and “adaptive” models. To explore whether three diathesis-stress models and one evolutionary model might account for the links between depression and divorce, investigators used 10 years of Finnish registry data.
The researchers examined patterns of antidepressant purchases (used as a proxy for depression, documented every 3 months) among ≈300,000 randomly selected adults, 24,000 of whom divorced during an 8-year window. The 60 months prior and subsequent to divorce were compared with similar periods in a nondivorced population.
Both the “stress-relief” model (…