Prognostic analysis of patients with non-small cell lung cancer harboring exon 19 or 21 mutation in the epidermal growth factor gene and brain metastases

Table 3 Multivariable analysis of the association between clinical factors and mOS in patients with NSCLC with EGFR mutation and BMs (n = 113)

Parameters	P	Odds ratio	95.0% CI for Exp(B)
Parameters	P	Odds ratio	Lower	Upper
ECOG score	0.080	1.481	0.953	2.301
Number of brain metastases	< 0.001	3.341	1.890	5.905
Treatments after brain metastases	0.001	0.680	0.543	0.851

Abbreviations: CI confidence interval, ECOG Eastern Cooperative Oncology Group

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