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Table 3 Multivariate analysis of risk factors for progression free survival (PFS)

From: The preliminary results of proton and carbon ion therapy for chordoma and chondrosarcoma of the skull base and cervical spine

 

B

SE

Wald

df

significance

Exp(B)

KPS

−.031

.058

.273

1

.601

.970

Critical organ compression

1.522

1.058

2.070

1

.150

4.582

Cranial nerve injury

1.312

1.064

1.520

1

.218

3.714

Histology

−.380

.762

.249

1

.618

.684

Tumor volume

1.037

.517

4.030

1

.045

2.822

Recurrent disease

−.927

.631

2.162

1

.141

.396

Re-radiotherapy

.774

.553

1.956

1

.162

2.168

Surgery

−.076

.574

.018

1

.895

.927

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Radiation Oncology

ISSN: 1748-717X

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