Based upon multiple studies, approximately 25% to 33% of critical care nurses manifest symptoms of severe BOS, and up to 86% have at least one of the three classic symptoms.,,,,, Compared with other types of nurses, critical care nurses more commonly experience BOS., In critical care nurses, the most common symptom of BOS is emotional exhaustion (73%), followed by a lack of personal accomplishment (60%) and depersonalization (48%). The prevalence of BOS in critical care nurses also varies across certain ICUs; nurses who reported the highest prevalence of BOS among their colleagues were also more likely to have BOS themselves. Therefore, units with a negative working culture might harbor a “contagion effect” among its employees. The relative shortage of critical care physicians and the demands for overnight ICU coverage have increased the awareness and recognition of BOS among physicians. BOS is common in critical care physicians as well.,,,,, Up to 45% of critical care physicians reported symptoms of severe BOS., In pediatric critical care physicians, the prevalence of BOS is 71%, more than twice the rate in general pediatricians. Compared with other types of physicians, critical care physicians have the highest prevalence of BOS, followed closely by emergency medicine physicians. There is a paucity of data on the prevalence of BOS in other critical care health-care professionals, such as social workers, and respiratory, physical, occupational, or speech therapy health-care professionals. In one study, nursing assistants were more likely to have BOS compared with other types of critical care health-care professionals.