Characteristics | Total | High exp | Low exp | χ 2 | p value |
---|---|---|---|---|---|
Survival state | |||||
 Alive | 352 | 162 | 190 | 7.63 | 5.70E − 03 |
 Dead | 172 | 102 | 70 |  |  |
Age(y) | |||||
  ≤ 65 | 344 | 173 | 171 | 0 | 1 |
  > 65 | 180 | 91 | 89 |  |  |
Gender | |||||
 Female | 185 | 98 | 87 | 0.62 | 0.43 |
 Male | 339 | 166 | 173 |  |  |
Grade | |||||
 G1 | 14 | 5 | 9 | 33.01 | 0 |
 G2 | 225 | 94 | 131 |  |  |
 G3 | 206 | 106 | 100 |  |  |
 G4 | 74 | 58 | 16 |  |  |
 GX | 5 | 1 | 4 |  |  |
Stage | |||||
 Stage I | 263 | 113 | 150 | 21.13 | 1.00E − 04 |
 Stage II | 56 | 29 | 27 |  |  |
 Stage III | 123 | 63 | 60 |  |  |
 Stage IV | 82 | 59 | 23 |  |  |