Research Article

[Retracted] Time Intervals between Double Primary Breast and Ovarian Cancers and Survival Outcomes of Patients with Both Cancers: A SEER Database Analysis

Table 2

Survival outcome.

VariablesBC to OC
Group 1
Synchronous
Group 2
OC to BC
Group 3
valueOverall

Total, (%)2,929 (58.9%)680 (13.7%)1,366 (27.5%)4,975
OS (median, range)134 (128.4–139. 6)35 (29.7–40.3)239 (218.3–259.7)<0.001140 (134.7-145.3)
CSS of OC45 (41.5–48.5)91 (57.8–124.3)NC<0.001127
Deceased2,144 (73.2%)488 (71.8%)682 (49.9%)<0.0013,314 (66.6%)
Died of OC1,539 (52.5%)252 (37.1%)210 (15.4%)<0.0012,001 (40.2%)
Died of BC219 (7.5%)103 (15.1%)204 (14.9%)<0.001526 (10.6%)
Died of other386 (13.2%)133 (19.6%)268 (19.6%)<0.001787 (15.8%)
Alive785 (26.8%)192 (28.2%)684 (50.1%)<0.0011,661 (33.4%)

Abbreviations: OS: overall survival; CSS: cancer-specific survival; BC: breast cancer; OC: ovarian cancer; NC: not calculated.