Table 2.
Baseline characteristics by RRM1 expression
| Characteristic | RRM1 mRNA Expression1 | P value | |
|---|---|---|---|
| Low | High | ||
| Age, years | |||
| ≥ 62 | 14 | 11 | |
| <62 | 14 | 18 | 0.592 |
| Gender | |||
| Male | 20 | 19 | |
| Female | 8 | 10 | 0.501 |
| WHO PS | |||
| 0 | 2 | 9 | |
| 1 | 26 | 20 | 0.062 |
| Smoking | |||
| Yes | 15 | 13 | |
| No | 13 | 16 | 0.207 |
| Weight loss ≥ 5% | |||
| Yes | 4 | 8 | |
| No | 24 | 19 | |
| Unknown2 | 0 | 2 | 0.348 |
| Histology | |||
| Adenocarcinoma | 19 | 22 | |
| Squamous cell | |||
| carcinoma | 6 | 6 | |
| Others2 | 3 | 1 | 0.833 |
| Stage | |||
| III | 3 | 7 | |
| IV | 25 | 22 | 0.257 |
1 mRNA from 57 samples was available for the analysis of RRM1 expression.
2 These groups were excluded from the statistical analysis.