Table 1 Statistical comparison of clinical information of two types of CM samples in TCGA training data set

Age (years, mean ± sd)

56.26 ± 15.73

64.53 ± 13.91

7.10E−07^a

Gender (Male/Female)

226/132

60/42

0.488^b

Pathologic_M (M0/M1/–)

313/21/24

97/3/2

0.317^b

Pathologic_N (N0/N1/N2/N3/–)

172/65/39/44/38

57/8/10/11/16

0.0785^b

Pathologic_T (T0/T1/T2/T3/T4/–)

23/40/72/80/67/76

0/1/5/10/84/2

2.2E−16^b

Pathologic_stage (I/II/III/IV/–)

81/74/142/20/41

2/65/27/3/5

1.133E−15^b

Radiotherapy (Yes/No/–)

47/310/1

2/100/0

4.395E−04^b

Tumor recurrence (Yes/No/–)

69/135/154

20/72/10

0.0402^b

Dead (Death/Alive)

193/165

29/73

0.0715^b

Overall survival time (months, mean ± sd)

74.10 ± 67.91

47.15 ± 10.04

5.279E−22^a