Table 5.
Technique | No. of Patients | ER-Positive Invasive Breast Cancer | ER-Negative Invasive Breast Cancer | ||||||
---|---|---|---|---|---|---|---|---|---|
Events | Hazard Ratio | 95% CI | P | Events | Hazard Ratio | 95% CI | P | ||
RRSO | 300 | 2 | 0.22 | 0.05 to 1.05 | .058 | 14 | 1.10 | 0.48 to 2.51 | .85 |
Surveillance | 284 | 7 | 1.0 | Referent | 11 | 1.0 | Referent |
Abbreviations: ER, estrogen receptor; RRSO, risk-reducing salpingo-oophorectomy.