Table 1 Clinical and pathologic characteristics of patients in the pre-processed TCGA and GEO datasets
Characteristic | TCGA training dataset (n = 58) | TCGA entire dataset (n = 78) | p value | GSE54993 dataset (n = 70) | GSE19417 dataset (n = 70) | |
|---|---|---|---|---|---|---|
Age (years) | ≤55 | 26 | 35 | 1 | 28 | NA |
> 55 | 32 | 43 | 42 | NA | ||
Survival Status | Living | 42 | 54 | 0.831 | 34 | 13 |
Dead | 16 | 24 | 36 | 57 | ||
Gender | female | 7 | 12 | 0.762 | 13 | 24 |
male | 51 | 66 | 57 | 46 | ||
Smoking history | NO | 18 | 27 | 0.841 | 26 | NA |
YES | 37 | 48 | 44 | NA | ||
pT stage | T1 | 4 | 7 | 0.874 | 4 | NA |
T2 | 20 | 28 | 2 | NA | ||
T3/T4 | 34 | 43 | 64 | NA | ||
pN stage | N0 | 34 | 41 | 0.597 | 32 | NA |
N1/NX | 24 | 37 | 38 | NA | ||
pM stage | M0 | 49 | 67 | 0.866 | 70 | NA |
M1/MX | 9 | 10 | 0 | NA | ||
pTNM stage | Stage I | 5 | 6 | 0.946 | 5 | NA |
Stage II | 35 | 46 | 29 | NA | ||
Stage III | 14 | 23 | 36 | NA | ||
Stage IV | 3 | 4 | 0 | NA | ||