Table 1.
Demographics and clinical characteristics
| CT (+) patients (n=21) | CT (-) patients (n=29) | P* | ||
|---|---|---|---|---|
| Age |
>60 |
12 |
19 |
0.74 |
| <=60 |
6 |
7 |
||
| Unknown$ |
3 |
3 |
|
|
| Sex |
Male |
10 |
12 |
0.76 |
| Female |
8 |
14 |
||
| Unknown |
3 |
3 |
|
|
| Smoking history |
No |
1 |
5 |
0.37 |
| Yes |
15 |
18 |
||
| Unknown |
5 |
6 |
|
|
| Histology |
SQCC# |
8 |
2 |
0.002 |
| non-SQCC |
7 |
24 |
||
| Unknown |
6 |
3 |
|
|
| Pathological tumor size |
>3 cm |
10 |
8 |
0.21 |
| <=3 cm |
8 |
17 |
||
| Unknown |
3 |
4 |
|
|
| T stage |
1 |
5 |
14 |
0.007 |
| 2 |
8 |
12 |
||
| 3 |
3 |
0 |
||
| 4 |
2 |
0 |
||
| Unknown |
3 |
3 |
|
|
| TNM stage (Pathologic stage of primary tumor) |
I |
9 |
18 |
0.37 |
| II |
5 |
3 |
||
| III |
4 |
5 |
||
| IV |
0 |
0 |
||
| Unknown | 3 | 3 | ||
* Chi-square (Fisher's exact test, two sided) or chi-square test for trend; #SQCC Squamous cell carcinoma; $patients with missing clinical data were not included in statistical analyses.