Table 2. Correlation coefficient of pairwise between each gene copy number and protein expression.
| DNA copy number | IHC-score | correlation coefficient (95% CI) | p value |
|---|---|---|---|
| HER2 | HER2 | 0.751 (0.667-0.8162) | <0.001 |
| FGFR2 | FGFR2-m | 0.725 (0.634-0.786) | <0.001 |
| EGFR | EGFR-m | 0.642 (0.531-0.731) | <0.001 |
| HER2 | HER2 | 0.488 (0.348-0.607) | <0.001 |
| FGFR2 | FGFR-c | 0.23 (0.064-0.383) | 0.007 |
| MET | cMET-c | 0.157 (−0.012-0.317) | 0.069 |
| MET | cMET-m | 0.118 (−0.052-0.281) | 0.172 |
FGFR2-m; FGFR2 membranous overexpression, EGFR-m; EGFR membranous overexpression, FGFR2-c; FGFR2 cytoplasmic overexpression, MET-c; MET cytoplasmic overexpression, MET-m; MET membranous overexpression.