Table 1.
Clinical characteristics of MBC and PLC
| Factors | MBC (n = 27) | PLC (n = 37) | p-value | |
|---|---|---|---|---|
| Sex | woman | 26 | 37 | 0.42 |
| man | 1 | 0 | ||
| Age (yr) (median, range) | 61 (36–79) | 67 (46–85) | 0.01 | |
| Smoking | ever | 4 | 7 | 0.75 |
| never | 23 | 30 | ||
| Tumor markers | normal | 24 | 29 | 0.33 |
| abnormal | 3 | 8 | ||
| P-stage in breast cancer | I | 17 | 22 | 0.77 |
| II | 10 | 15 | ||
| DFI (months) (median, range) | 48 (13–180) | 72 (0–312) | 0.98 |
Two-category comparison was performed by Fisher’s exact test. Continuous data were compared using Mann-Whitney U test. Tumor markers including carcinoembryonic antigen, cancer antigen 15-3 and 125. P-stage: pathological stage; DFI: disease free interval; MBC: metastasis from breast cancer; PLC: primary lung cancer