| 变量 | 变量名 | 英文名 | 变量类型及赋值 |
| X1 | 年龄 | Age | 20~49 years;50~69 years; 70+ years |
| X2 | 性别 | Sex | Male;Female |
| X3 | 种族 | Race | White;Black; Other |
| X4 | T分期 | AJCC.T | T0;T1;T2; T3;T4;T5; TX |
| X5 | N分期 | AJCC.N | N0;N1; NX |
| X6 | M分期 | AJCC.M | M0;M1; MX |
| X7 | 区域淋巴结数量 | Regional nodes positive | 数值 |
| X8 | 切除的淋巴结总数 | Regional nodes examined | 数值 |
| X9 | 淋巴结转移数目 | CS lymph nodes | 数值 |
| X10 | 总体转移数目 | CS mets at dx | 数值 |
| X11 | 肿瘤总数 | Total number of patient | 数值 |
| X12 | 肿瘤大小 | CS tumor size | 数值 |