Table 4.

Logistic regression predicting for CSRN

Univariate
VariablesOR (95% CI)P
Age at diagnosis (years)
 ≤ 451
 > 455.091 (1.103–23.493)0.037
HER2 status
 Negative1
 Positive1
Receipt of T-DM1
 No1
 Yes13.500 (1.535–118.692)0.019
Total number SRS courses
 continuous2.658 (1.329–5.314)0.006
Total number lesions treated
 1–5
 >51.500 (0.365–6.157)0.574
Receipt of WBRT
 No1
 Yes0.821 (0.179–3.763)0.800