Characteristics of Assaultive Patients Whom Inpatient Psychiatric Staff Report to Law Enforcement

The authors sought to identify factors that affect hospital staff's decision to pursue criminal charges against patients who assault staff on inpatient psychiatric units.

Data on assaults occurring on inpatient psychiatric units in one hospital system were collected over 32 months, from November 1, 2016, to July 1, 2019. The events were grouped by whether staff pursued criminal charges after the incident. Descriptive statistics and regression models were used to describe the data and identify predictive variables.

Data were reviewed from 9,654 admissions, of which 124 patient encounters involved assaults on staff. Overall, 27 (22%) of 124 assaults on staff resulted in staff pursuing criminal charges. Regression models indicated that criminal history (odds ratio [OR]=2.18, 95% CI=1.26-3.78, p=0.006), age (OR=0.92, 95% CI=0.91-0.94, p<0.001), and diagnosis of chronic mental illness with psychotic symptoms (OR=7.23, 95% CI=1.49-35.04, p=0.01) predicted patient assaults resulting in contact with law enforcement. Several variables were not statistically significantly associated with filing of criminal charges, including race, gender, degree of injury from the assault, number of instances of restraint, and number of as-needed medications.

This is the largest quantitative study to examine the demographic and clinical factors that may play a role in whether staff pursue criminal charges against patients on inpatient psychiatric units. The results suggest that certain patients are more likely to be reported to law enforcement. Institutions should monitor factors that increase the likelihood of assaults on staff resulting in criminal charges and create policies that mitigate discrepancies in criminal justice involvement.