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Table 1 Clinical and molecular characteristics of patients (n = 96)

From: Radiotherapy for asymptomatic brain metastasis in epidermal growth factor receptor mutant non-small cell lung cancer without prior tyrosine kinase inhibitors treatment: a retrospective clinical study

Charateristics

Patients (n = 96) No.(%)

Sex

 

Male

34 (35.4 %)

Female

62 (64.6 %)

Age(year), median(range)

54 (26–79)

aECOG performance status

 

0–1

69 (71.9 %)

2–3

27 (28.1 %)

No. of brain lesions

 

1–4

32 (33.3 %)

>4

64 (66.7 %)

Max size of brain lesions

 

<1 cm

75 (78.1 %)

>1 cm

21 (21.9 %)

Location of brain lesions

 

Brain stem mets

13 (13.5 %)

Non-brain stem mets

83 (86.5 %)

Other sites of metastatic disease

 

Yes

61 (63.5 %)

No

35 (36.5 %)

bEGFR mutation

 

Exon 19

45 (46.9 %)

Exon 21

51 (53.1 %)

First line systemic treatment

 

Chemotherapy

61 (63.5 %)

cTKI

35 (36.5 %)

Time of Brain radiotherapy

 

First line

39 (40.6 %)

Delayed

23 (24.0 %)

No dRT

34 (35.4 %)

  1. aEastern Cooperative Oncology Group
  2. bEpidermal growth factor receptor
  3. cTyrosine kinase inhibitors
  4. dRadiotherapy