| 
      
        |  | Subgroups | N. | MEAN (SD) |  
        | Occupation | Doctors | 32 | 7.4    (3.4) |  
        |  | Anesthesiologists nly | 12 | 10.1    (5.2) |  
        |  | Nurses | 63 | 5.7    (3.1) |  
        | Specialty | Anaesthetics    and PACU | 35 | 7.2    (3.3) |  
        |  | Orthopaedics    and Trauma | 16 | 7.3    (2.3) |  
        |  | Vascular    Surgery | 17 | 6.4    (1.8) |  
        |  | Urology | 11 | 5.0    (3.8) |  
        |  | General    Surgery | 16 | 3.8    (3.7) |  
        | Group | APS+ | 33 | 6.9    (2.2) |  
        |  | APS- | 27 | 4.3    (3.8) |  
        |  | All responders | 95 | 6.2    (3.3) |  |