Table 1.
Clinical characteristics of subjects.
| Total | Male | Female | |
|---|---|---|---|
| AGE | |||
| Mean | 60.7 | 60.3 | 61.4 |
| Sex | 50 | 32 (64%) | 18 (36%) |
| SITES | |||
| Left | 28 | 18 (36%) | 10 (20%) |
| Right | 22 | 14 (28%) | 8 (16%) |
| CLINICAL STAGE* | |||
| I | 23 | 13 (26%) | 10 (20%) |
| II | 16 | 10 (20%) | 6 (12%) |
| III | 8 | 7 (14%) | 1 (2%) |
| IV | 3 | 2 (4%) | 1 (2%) |
| DRINKING | |||
| Previous | 20 | 16 (32%) | 4 (8%) |
| Current | 17 | 14 (28%) | 3 (6%) |
| Non-drinker | 13 | 2 (4%) | 11 (22%) |
| SMOKING | |||
| Previous | 17 | 15 (30%) | 2 (4%) |
| Current | 9 | 8 (16%) | 1 (2%) |
| Non-smoker | 24 | 9 (18%) | 15 (30%) |
| BETEL NUT CHEWING | |||
| Previous | 4 | 3 (6%) | 1 (2%) |
| Current | 2 | 2 (4%) | 0 |
| Non-chewer | 44 | 27 (54%) | 17 (34%) |
*
The criteria of clinical stage are based on the AJCC Cancer Staging Manual.