| Group A | Group B | Group C | Group D |
IIA stage |
|
|
|
|
Number | 37 | 12 | 21 | 12 |
Mean survival (years) | 3.242 ± 0.6 | 1.600 ± 0.4 | 0.454 ± 0.1 | 0.652 ± 0.2 |
IIB stage |
|
|
|
|
Number | 76 | 16 | 12 | 14 |
Mean survival (years) | 1.720 ± 0.2 | 0.931 ± 0.1 | 0.713 ± 0.1 | 0.957 ± 0.2 |