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Table 1 Clinicopathological characteristics of the patients in the study and validation groups

From: Oral tongue cancer gene expression profiling: Identification of novel potential prognosticators by oligonucleotide microarray analysis

Parameter

Study (Array)

Validation

 

All samples

TN paired

RT-PCR

 

NUMBER %

Total

37

20

49

Age (yrs)

   

   Median (Range)

57 (36–97)

62 (35–97)

59 (35–97)

Gender

   

   Male

22 (59.5)

12 (60)

26 (53)

   Female

15 (40.5)

8 (40)

23 (47)

Therapy prior to surgery

   

   None

22 (59.5)

12 (60.0)

34 (69.4)

   Yes

15 (40.5)

8 (40.0)

15 (30.6)

Smoking history

   

   Yes

19 (51.4)

11 (55.0)

30 (61.2)

   No

18 (48.6)

9 (45.0)

19 (38.8)

Alcohol history

   

   Yes

14 (37.9)

8 (40.0)

20 (40.8)

   No

23 (62.1)

12 (60.0)

26 (59.2)

   Unknown

0

0

3

Histological grading

   

   Well-differentiated

6 (16.2)

3 (15)

9 (18)

   Mod-differentiated

24 (64.9)

13 (65)

32 (65)

   Poorly-differentiated

7 (18.9)

4 (20)

8 (16)

   Unknown

0

0

0

Lymph node involvement (Pathologic)

   

   Negative

26 (70.2)

13 (65)

25 (51)

   Positive

11 (29.8)

7 (35)

24 (49)

   Unknown

0

0

0

TNM Stage (Pathologic)

   

   I

8 (21.6)

4 (20)

11 (22)

   II

12 (32.4)

6 (30)

12 (25)

   III

3 (8.1)

3 (15)

7 (14)

   IV

14 (37.9)

7 (35)

19 (39)

   Unknown

0

0

0