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Table 4 Multivariate analyses of significant factors associated with survival by Cox regression

From: Whole brain radiotherapy for brain metastases from breast cancer: estimation of survival using two stratification systems

VARIABLE P HR 95% confidential interval
SURGICAL RESECTION <0.0001 4.34 2.5 7.14
SINGLE METASTASES 0.14 1.08 0.97 1.21
KPS >= 70 0.55 1.31 0.55 3.23
BS-BM 0.58 0.63 0.12 3.29
RPA <0.0001 1.64 1.32 2.04
CONTROL PRIMARY TUMOR 0.66 0.92 0.63 1.34
NO EXTRACRANIAL METASTASES <0.0001 2.38 1.63 3.44