"Body count irrelevant"

Average (μ): Men: 9.1 | Women: 6.4

Logistic Regression

Odds Ratio (OR) = 1.09 per additional partner

→ +9% higher divorce risk per partner

At ≥10 partners: OR = 3.0

→ 3× higher divorce risk starting at 10+ partners

Linear Regression

β = –0.31 years of marriage per additional partner

→ Each additional partner costs roughly 4 months of marriage duration