Research Article
The Importance of Brain Metastasis in EGFR Mutation Positive NSCLC Patients
Table 1
Baseline demographic data.
| | | With brain metastasis, (%) | Without brain metastasis, (%) | Total, (%) | value |
| | Median age (±SD years) | 54 (±19.09) | 59 (±10.2) | 60 (±10.39) | | | Gender | | | | | | Male | 7 (50) | 39 (44.82) | 46 (45.54) | (chi square) | | Female | 7 (50) | 48 (55.17) | 55 (54.45) | | Performance status | | | | | | ECOG PS 0-1 | 5 (35.714) | 55 (63.21) | 60 (59.4) | (chi square) | | ECOG PS 2-3 | 9 (64.28) | 32 (34.48) | 41 (40.6) | | Smoking | | | | | | Ever | 4 (28.57) | 32(36.78) | 36 (35.64) | (Fisher exact) | | Never | 10 (71.42) | 55 (63.21) | 65 (64.35) | | Histology | | | | | | Adenocarcinoma | 14 (100%) | 82 (94.25) | 96 (95.04) | (Fisher exact) | | Squamous | 0 | 2 (2.29) | 2 (1.98) | | Not determined | 0 | 3 (3.44) | 3 (2.97) | |
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