Table 1. Characteristics of the subjects by residential area.
Arsenic-free village | Arsenic-affected village | |||
|
|
|||
n=189 | n=431 | |||
Mean age, years (SD) | 33.5 | (16.6) | 32.6 | (18.9) |
Male sex (%) | 90 | (47.6) | 207 | (48.0) |
Current smoking (%) | 54 | (28.6) | 184 | (42.7) |
Habitual drinking (%) | 49 | (25.9) | 99 | (23.0) |
Arsenic dermatosis (%) | * | 196 | (45.5) |
* dermatologic examination was not conducted.