Table 2 Demographic features of enrolled subjects
feature | patients | |
|---|---|---|
sex | male | 55 |
female | 1 | |
age(yrs) | 37.84 ±11.67 | |
range 16-63 | ||
occupation | factory worker | 35 |
construction worker | 11 | |
peasant | 5 | |
student | 3 | |
other | 2 | |
education | illiteracy | 2 |
primary school | 13 | |
middle school | 36 | |
university | 4 | |
post-graduate | 1 | |
location where injury occurred | workplace | 45 |
laboratory | 4 | |
home | 5 | |
elsewhere | 2 |