Laytin et al reported a "lethal triad" for violent injury in an adult. The authors are from the University of California at San Francisco.
Patient selection: adult victim of violent injury
Lethal triad:
(1) poverty
(2) mental illness
(3) substance abuse
where:
• The triad would also seem to describe an urban homeless population.
A person identified as being at risk may benefit from a violence intervention program.