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Table 4 Test for non-proportionality based on the Cumulative residuals from the conventional Cox model (see table 1).

From: Variables with time-varying effects and the Cox model: Some statistical concepts illustrated with a prognostic factor study in breast cancer

Variable

p-value

Age

0.97

Grade II

0.02

Grade III

<0.01

Size

0.16

Lymph node involvement

0.75

PVI

0.11

Hormone receptor

<0.01

Her2

<0.01

Mib1

<0.01