showed a trendP = 0.10
OS for local IHC equivocal (IHC 2+) was similar to that of local IHC positive (Figure 2 A: HR = 1.0; 95% CI, 0.43 to 2.6; P = 0.92) and showed a trend of shorter OS compared with local IHC negative (HR = 2.7; 95% CI, 0.82 to 9.2; P = 0.10).