Characteristic | Health workers | Petroleum workers | ||
(N = 3084) | (N = 489) | |||
n | % | n | % | |
Sex | ||||
Male | 672 | 19.3 | 332 | 68.2 |
Female | 2405 | 69.1 | 155 | 31.8 |
Age (years) | ||||
<30 | 705 | 23.0 | 24 | 4.9 |
31 to 45 | 1454 | 47.5 | 249 | 50.9 |
46 to 55 | 587 | 19.2 | 186 | 38.0 |
56 or more | 315 | 10.3 | 30 | 6.1 |
Schooling level | ||||
Fundamental (1 to 9 years) | 122 | 4.0 | 6 | 1.2 |
Medium (10 to 12 years) | 1611 | 53.0 | 205 | 42.2 |
Higher (undergraduate/graduate) | 1309 | 43.0 | 275 | 56.6 |