"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