Table 4.

Kaplan-Meier estimates of RFS among all patients by pCR and by HER2 status in patients with residual tissue identified at the time of surgery

StatusNo. patientsNo. eventsMedian follow-up time (mo)3-y estimates5-y estimatesP
%95% CI%95% CI
Overall1421733.587.882.4-93.686.2080.1-92.8
pCR33.5
    Yes72495.791.0-10092.9086.0-100
    No701380.170.8-90.50.0175
HER2 Status in Residual Tissue 25637.074.959.4-94.5
    Amplified17287.572.7-100
    Not Amplified8450.025.0-1000.041