Chronic pain and violent ideation: testing a model of patient violence.

Objective: Physicians are at risk of patient-perpetrated violence. The objective of this study was to test a clinical model of patient violence, which had been developed previously by Fishbain and colleagues. The developers of this model believed that it would be associated with increased risk of violence in pain patients.

Design: Hypotheses generated by the model were tested using manova and chi-square procedures.

Setting: A total of 527 subjects for this study were patients obtained from 90 medical facilities in 30 U.S. states.

Patients: All subjects were patients being treated for injury and nonmalignant pain. All of the subjects were adults, ranging in age from 18 to 65 years, and were able to read at the sixth-grade level. The demographics of the sample approximated U.S. Census data for race, education, age, and gender.

Results: The results included findings that violent ideation was associated with higher levels of physical difficulties, including pain (P = 0.01), problems with functioning (P = 0.0003), and somatic complaints (P = 0.0001). Significant psychosocial variables included hostility (P < 0.0001), dependency (P < 0.0001), substance abuse (P < 0.0001), litigation (P < 0.001), and a lack of trust in the physician (P < 0.001).

Conclusions: Using the Battery for Health Improvement 2 as a measure, the findings of this study consistently supported the Fishbain Model of violence risk, and also reinforced the need for psychological assessment and management when working with chronic pain patients. Suggestions for intervention were also offered, but further research will be necessary to see whether these interventions are effective in decreasing patient violence.