Table 1 Background data
Sex | Male 17 (24%), female 55 (76%) |
Age in years mean (range) | 39 (22–55) |
Experience on the job in years mean (range) | 6.1 (0.4–29) |
Sex | Male 17 (24%), female 55 (76%) |
Age in years mean (range) | 39 (22–55) |
Experience on the job in years mean (range) | 6.1 (0.4–29) |