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Table 2 Characteristics of patients with BM

From: Risk factors of brain metastasis of lung squamous cell carcinoma: a retrospective analysis of 188 patients from single center

Variables

No.

%

BM

 Synchronous

16

44.4

 Metachronous

20

55.6

RPA

 I

8

22.2

 II

20

55.6

 III

8

22.2

GPA

 0-1

10

27.8

 1.5-2.5

17

47.2

 3

4

11.1

 3.5-4

5

13.9

Number of BM

 1

24

66.7

 2-3

5

13.9

 > 3

7

19.4

Presence of systemic metastasis at the time of BM

 No

9

25.0

 Yes

27

75.0

Treatments after BM

 Local therapy only

15

41.6

 Local + systemic therapy

21

58.4

Local therapy

 SRS

27(15)a

75.0

 WBRT

9(6)

25.0

  1. Abbreviations: BM Brain metastasis, RPA Recursive partitioning analysis, GPA Graded prognostic assessment, WBRT Whole brain radiation therapy, SRS Stereotactic radiosurgery
  2. aNumber in the blanket was number of patients receiving additional systemic therapy after local therapy