Table 1.
Comparison of the baseline epidemiological characteristics of the different groups
| Characteristics | Group | P value | |||
|---|---|---|---|---|---|
| Total | 1-CRZ | 1-PP | N1-PP | ||
| Total, n | 73 | 32 | 28 | 13 | |
| Gender, n (%) | |||||
| Male | 36 (49.3) | 19 (59.4) | 11 (39.3) | 6 (46.2) | 0.290 |
| Female | 37 (50.7) | 13 (40.6) | 17 (60.7) | 7 (53.8) | |
| Median age, year (range) | 51.4 (23–73) | 53.3 (30–73) | 49.6 (23–71) | 43.2 (23–61) | 0.045 |
| Smoking, n (%) | |||||
| Never | 49 (67.1) | 19(59.4) | 21 (75.0) | 9 (69.2) | 0.431 |
| Current/Former | 24 (32.9) | 13 (40.6) | 7 (25.0) | 4 (30.8) | |
| ECOG score, n (%) | |||||
| 0 or 1 | 69 (94.5) | 30 (93.8) | 26 (92.9) | 13 (100.0) | 0.625 |
| > = 2 | 4 (5.5) | 2 (6.2) | 2 (7.1) | 0 (0) | |
| Extent of disease, n (%) | |||||
| Locally advanced | 14 (19.2) | 6 (18.8) | 5 (17.9) | 3 (23.1) | 0.922 |
| Metastatic | 59 (80.8) | 26 (81.2) | 23 (82.1) | 10 (76.9) | |
Note. — Unless otherwise indicated, the data are shown as numbers with percentages in parentheses. The statistical analysis for age was performed using the Mann–Whitney test. The statistical analyses for other clinical features were performed using the Chi-Square test