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Table 4 Multivariate analysis for OS, PFS, and LC

From: Stereotactic body radiotherapy for recurrent and oligometastatic soft tissue sarcoma

 

OS

PFS

LC

HR

95% CI

p

HR

95% CI

p

HR

95% CI

p

Disease setting

0.680

0.488

0.423

0.112

NA

NA

Recurrence vs. oligometastasis

0.230–2.007

 

0.146–1.223

   

Histological grade

0.194

0.003

0.193

0.003

0.283

0.045

G1 vs. G2 and G3

0.066–0.575

 

0.064–0.581

 

0.083–0.972

 

Number of lesionsa

1.080

0.893

1.026

0.964

0.313

0.044

1 vs. 2–3

0.354–3.300

 

0.338–3.117

 

0.102–0.967

 

Lesions size

NA

NA

NA

NA

0.210

0.017

≤ 5 cm vs. > 5 cm

    

0.058–0.757

 
  1. LC local control, PFS progression-free survival, OS overall survival
  2. aNumber of concurrent lesions at the time of first SBRT