Markers Expression Cutoff value Five-year Overall survival (%) P (log rank) Ten-year Overall survival (%) P (log rank)

Rb

Downregulation
Overexpression

> 54.4 64.7
47.5
0.057 54.9
33.2
0.027

Cyclin D1

Downregulation
Overexpression

> 37.7 66.3
48.1
0.049 58.1
35.6
0.023

Cyclin B1

Downregulation
Overexpression

£8.6 53.3
61.7
0.296 40.0
53.0
0.202

Cyclin A

Downregulation
Overexpression

> 3.4 69.6
49.7
0.047 54.8
38.3
0.041

Ki-67

Downregulation
Overexpression

> 28.1 71.3
46.5
0.010 54.5
40.0
0.045

Topo 2A

Downregulation
Overexpression

> 34.2 64.5
43.4
0.026 51.8
37.2
0.081

p21

Downregulation
Overexpression

£18.4 48.0
77.1
0.013 39.1
69.0
0.013

p53

Dowregulation
Overexpression

> 77.2 60.6
47.8
0.203 46.6
47.8
0.592

p27

Downregulation
Overexpression

£8.6 31.3
61.0
0.002 23.4
50.5
0.004

p16

Downregulation
Overexpression

£41.3 51.2
64.8
0.137 40.0
55.5
0.121
Table 4: Cutoff determined by ROC analyses and comparison of five and ten-year overall survival in oral squamous cell carcinoma.