Age at last birth and risk of non-epithelial ovarian cancer by subtype
| Sex cord-stromal tumors | Germ cell tumors | |||
|---|---|---|---|---|
| Age at last birth (years) | OR | 95% CI | OR | 95% CI |
| <25 | 1.00 | Ref | 1.00 | Ref |
| 25–29 | 0.77 | 0.55–1.08 | 1.03 | 0.72–1.46 |
| 30–39 | 0.64 | 0.45–0.90 | 1.01 | 0.68–1.49 |
| ≥40 | 0.48 | 0.23–0.98 | 0.82 | 0.31–2.16 |
| Per year age | 0.97 | 0.94–0.99 | 1.01 | 0.98–1.04 |