Table 2.
Mean, standard deviation, median, and range for the covariates for the total group and subgroups of subjects
| Variables | All (n=144) | Group 1 (n=72) | Group 2 (n=72) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| |
Mean |
Median |
Range |
Mean |
Median |
Range |
Mean |
Median |
Range |
| Age (years) |
38.7 (7.8) |
38.0 |
22-55 |
39.9 (8.5) |
43.0 |
22-52 |
37.5 (7.1) |
36.0 |
26-55 |
|
Gender |
|
|
|
|
|
|
|
|
|
| Female |
20 |
|
|
6 |
|
|
14 |
|
|
| Male |
124 |
|
|
66 |
|
|
58 |
|
|
| PNE |
30 |
|
|
27 |
|
|
3 |
|
|
|
Shooting |
|
|
|
|
|
|
|
|
|
| WP |
3 |
|
|
3 |
|
|
0 |
|
|
| NP |
39 |
|
|
33 |
|
|
6 |
|
|
| Tenure |
- |
- |
- |
15.8 (8.1) |
16.5 |
2-34 |
0 |
0 |
0 |
| Smoking |
21.26 (30.7) |
14.0 |
0-140 |
26.8 (32.1) |
14.0 |
0-140 |
18.7 (15.8) |
12 |
0-80 |
| Alcohol | 17.4 (17.8) | 13.5 | 0-60 | 15.6 (16.3) | 13.5 | 0-60 | 31.2 (24.4) | 27 | 0-60 |
Note. Group 1: Solvent-exposed workers Group 2: Non-exposed workers.
() Standard deviation.
Alcohol. Number of drinks per month.
Smoking. Number of cigarettes per week.
Tenure. Years working at the factory exposed to solvents.
PNE. Number of subjects who have been exposed to noise in previous jobs.
Shooting WP. Number of subjects who have shot wearing hearing protection.
Shooting NP. Number of subjects who have shot without wearing hearing protection.