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Table 3 Multivariate analysis for factors related to overall survival following reirradiation

From: The benefit of whole brain reirradiation in patients with multiple brain metastases

Factors (in favor of)

p

Primary site (lung)

0.01

Pretreatment KPS (≥60)

0.03

Interval between two courses of WBRT (≥9.5 months)

0.01

SRS (application)

0.57

Extracranial metastasis (in control)

0.86

Number of metastasis in the brain (<5)

0.48

BEDcumulative (≥129.5 Gy)

0.62

  1. KPS Karnofsky performance scale, WBRT whole brain radiotherapy, SRS stereotactic radiosurgery, BED biological effective dose.