Abstract
The purpose of this study is to define the sources of stress and other related factors. Questionnaires were distributed to 305 middle managers working at 13 general hospitals. The data were divided in two: head nurses (N=121) and assistant head nurses (N=184). Significant differences were found between head nurses and assistant head nurses in their sources of stress; and negative coping behavior, Type A behavior, the Cumulative Fatigue Symptoms Index (CFSI) were elevate factor of the stress score in the two groups.