Table 3.
Characteristics of failure cases for EGFR mutation detection and their potential predictive factors by multivariable logistic regression
| Predictive factors | No. of patients(%) | Multivariable regression |
||
|---|---|---|---|---|
| Odds ratio |
95% CI* | p value | ||
| Male | 148(39) | 1.00 | 0.57 to | 0.45 |
| Female | 233(61) | 1.42 | 3.58 | |
| White | 289(76) | 1.21 | 0.39 to | 0.74 |
| Others | 92(24) | 1.00 | 3.64 | |
| Non-smokers | 106(28) | 1.00 | 0.45 to | 0.51 |
| Smokers | 275(72) | 1.50 | 5.00 | |
| Stage I-III | 93(24) | 1.11 | 0.29 to | 0.88 |
| Stage IV | 288(76) | 1.00 | 4.22 | |
| Adenocarcinoma | 328(86) | 1.00 | 0.63 to | 0.22 |
| Others | 53(14) | 2.15 | 7.34 | |
| Bone | 23(6) | 6.17 | 1.56 to | 0.01 |
| Others | 358(94) | 1.00 | 24.5 | |
| Surgical | 186(49) | 1.00 | 3.58 to | 0.002 |
| Non-surgical | 195(51) | 28.5 | 226.2 | |
95%CI*: 95% Confidence interval.