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Table 4 Odds Ratios for Choice of WBRT alone versus WBRT with SRS

From: Physician self-reported treatment of brain metastases according to patients’ clinical and demographic factors and physician practice setting

WBRT vs WBRT+SRS

OR (95%CI)

P

Lesions

  

1 (referent)

1.00

 

3

2.5 (2.0,3.1)

<.0001

8

37.0 (24.6,55.5)

<.0001

Age

  

55 (referent)

1.00

 

80

4.6 (3.5,6.1)

<.0001

Extracranial Disease

  

None (referent)

1.00

 

Active

11.4 (8.2,15.9)

<.0001

Focal Neurological Deficits

  

Asymptomatic (referent)

1.00

 

Symptomatic

1.9 (1.5,2.3)

<.0001

Performance Status§

  

80 (referent)

1.00

 

50

18.0 (12.5,25.8)

<.0001

Lesion Size

  

Small (referent)

1.00

 

Large

1.9 (1.4,2.6)

<.0001

Melanoma

  

NSCLC (referent)

1.00

 

Melanoma

0.8 (0.7,1.0)

0.0698