nurses. Prospective, multicenter, observational an observational survey used to be carried out to investigate the factors associated with burnout on a national stage in order to determine manageable important factors on all caregivers from seventy-four of the ninety-two Swiss ICUs, measuring the prevalence of burnout among the caregivers and the pre-specified centres, patient and caregiver-related factors influencing its prevalence. Among the caregivers and the pre-specified centres, patient and caregiver related factors influencing its prevalence. Out of the 4322 questionnaires allotted from march 2006 to April 2007, 3052 (71%) had been returned, with a response charge of 72% with the aid of the centre, 69% from nurse assistant,73% nurses
