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Table 3 Univariate analysis for LC rate

From: Two-institution results of Stereotactic Body Radiation Therapy (SBRT) for treating adrenal gland metastases from liver cancer

 

0.5-year LC rate (%)

1-year LC rate (%)

2-year LC rate (%)

P value

BED10 (Gy)

  ▪ < 75

85.7

66.7

66.7

0.260

  ▪ ≥ 75

90.0

90.0

90.0

 

Prescription dose (Gy)

  ▪ < 41.6

84.6

63.5

63.5

0.179

  ▪ ≥ 41.6

90.9

90.9

90.9

 

GTV (ml)

  ▪ < 34.5

100

92.3

92.3

0.039

  ▪ ≥ 34.5

72.7

58.2

58.2

 

Gender

  ▪ Male

85.0

72.9

72.9

0.268

  ▪ Female

100

100

100

 

Tracking method

  ▪ Synchrony respiratory motion

100

100

100

0.461

  ▪ X-sight spine

84.6

75.6

75.6

 

Location of AGMs

  ▪ Left

100

80

80

0.860

  ▪ Right

84.2

77.7

77.7

 

Systemic therapy

  ▪ Yes

87.5

87.5

87.5

0.492

  ▪ None

87.5

72.9

72.9

 

SBRT for other sites

  ▪ Yes

100

100

100

0.056

  ▪ None

78.6

64.3

64.3

 
  1. LC local control, BED10 biologic equivalent dose (α/β=10 Gy), GTV gross tumor volume, AGMs adrenal gland metastases, SBRT stereotactic body radiation therapy