During the study period, no patient-to-patient injuries occurred;
however, one contentious or threatening verbal altercation between two patients in the study required emergency intervention by many security personnel. The patient with intellectual disabilities (autism/mental retardation) caused one minor staff injury. No patients injured themselves with the exception of the patient with intellectual disabilities, who attempted to bang his head or an extremity; this was reported as historically typical behavior for this patient. The staff injury was reported and documented in
accordance with hospital policies and procedures.