Research Article

Histopathological and Genomic Grading Provide Complementary Prognostic Information in Breast Cancer: A Study on Publicly Available Datasets

Table 4

Showing the correlation of scaled Schoenfeld residuals for each combination of histopathological and genomic grade with time for histopathological and genomic grade (rho = correlation coefficient, HG = histopathological grade, GG1 = low genomic grade, and GG3 = high genomic grade). A significant correlation shows time-dependent covariate effects. Negative correlation means that the prognostic effects get attenuated over time, and a positive correlation means that the prognostic effects get strengthened over time.

AlldataER+veER+ve Node −veER+ve Stage I
rho 𝑃 rho 𝑃 rho 𝑃 rho 𝑃

RFS
 HG1-GG3 0.040.5−0.070.3−0.090.2−0.090.4
 HG2-GG10.110.6−0.010.90.080.40.040.8
 HG2-GG30.120.020.010.90.110.1−0.210.2
 HG3-GG10.18<0.001−0.080.20.140.007−0.120.2
 HG3-GG30.30<0.0010.160.050.22<0.0010.230.01

DMFS
 HG1-GG30.080.30.0010.120.2−0.080.6
 HG2-GG1−0.010.90.020.8-0.050.7−0.020.9
 HG2-GG3−0.030.7−0.040.70.280.020.380.03
 HG3-GG10.21<0.001−0.090.30.170.070.300.09
 HG3-GG3 𝟎 .29<0.0010.170.060.290.0030.390.01