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Comparison of detection efficiency of EGFR mutation between 22 pleural effusion samples and matched biopsy tumor tissues by Kappa statistic analysis
| Pleural effusion | ||||
|---|---|---|---|---|
|
| ||||
| + | - | Total | ||
| Tumor tissue | + | 12 | 1 | 13 |
| - | 0 | 9 | 9 | |
| Total | 12 | 10 | 22 | |
+: EGFR positive mutation; -: EGFR negative mutation.
