The Haddon Matrix for Health Place Injury Prevention and Workplace Violence
By
[Eugene Schmukler; PhD MBA MEd – Certified Trauma Specialist]
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An invaluable tool for healthcare violence prevention program establishment is the Haddon Matrix. In 1968, William Haddon, Jr., a public health physician with the New York State Health Department, developed a matrix of categories to assist researchers trying to address injury prevention systematically. The idea was to look at injuries in terms of causal factors and contributing factors, rather than just using a descriptive approach. It is only recently that this model has been put to use in the area of workplace violence.
The Matrix Framework
The matrix is a framework designed to apply the traditional public health domains of host, agent, and disease to primary, secondary, and tertiary injury factors. When applied to workplace violence, the “host” is the victim of workplace violence, such as a nurse. The “agent” is a combination of the perpetrator and his or her weapon(s) and the force with which an assault occurs. The “environment” is divided into two sub domains: the physical and the social environments. The location of an assault such as the ER, the street, an examining room, or hospital ward is as important as the social setting in patient interaction, presence of co-workers, and supervisor support.
Modifications
Subsequent versions of the matrix divide the environment into Physical environment and Social, Socio-economic, or Sociocultural environment. Each factor is then considered a pre-event phase, an event phase, and a post-event phase.
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Medical / Healthcare Setting
The Haddon Matrix lends itself to a medical setting in that it uses a classical epidemiological framework to categorize “pre-event,” “event,” and “post-event” activities according to the infectious disease vernacular, host (victim), vector (assailant or weapon), and environment. The strength of the Haddon Matrix is that it includes the ability to assess “pre-events” or precursors in order to develop primary preventive measures.
Phases |
Host |
Agent |
Physical Environment |
Social Environment |
Pre-event (prior to assault) |
Knowledge Self-efficacy Training |
History of prior violence communicated |
Assess objects that could become weapons, actual weapons, egress (means of escape) |
Visit in pairs or with escort |
Event (assault) |
De-escalation Escape techniques Alarms/2-way phones |
Reduce lethality of patient via increasing your distance |
Egress, alarm, cell phone |
Code and security procedures |
Post-event (post-assault) |
Medical care/counseling Post-event debriefing |
Referral Law enforcement |
Evaluate role of physical environment |
All staff debrief and learn Modify plan if appropriate |
Policy?
From the perspective of administration, the Haddon Matrix does not implicate policy. This means that the matrix does not necessarily guide policy. When implemented, the Haddon Matrix can be a “politically” neutral, trans-or multi-disciplinary, objective tool that identifies opportunities for intervention. Furthermore, it outlines sensible “targets of change” for the physical and social environment.
Phase |
Affected individual and population |
Agent used |
Environment |
Pre-event |
Psychological first aid |
Communicate efforts to limit action |
Have plans in place detailing agency roles in prevention and detection |
Event |
Population uses skills |
Mobilize trauma workers |
Communicate that response systems are in place |
Post-event |
Assessment, triage, and psychological treatment |
Communicate, establish outreach centers |
Adjust risk communication |
End results |
Limit distress responses, negative behavior changes and psychological illness |
Minimize loss of life and impact of attack |
Minimize disruption in daily routines |
More: Was the San Bernardino CA Massacre Work Place Violence?
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Assessment
And so, was San Bernardino workplace violence – or not; please opine?
Conclusion
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Filed under: Ethics, Practice Management, Professional Liability, Risk Management | Tagged: assault, ER, Eugene Schmuckler PhD, gene schmuckler, Haddon Matrix, healthplace injury, medical assault, medical battery, medical workplace violence, William Haddon MD, workplace violence | 5 Comments »