Coercion During Psychiatric Ambulance Versus Police Transport in Mental Health Crises: A Pre- and Postimplementation Study.

Objective: Police officers are often the first responders when individuals experience a mental health crisis and typically remain responsible for transport to a psychiatric emergency department. In 2014, a psychiatric ambulance (PA) was introduced in the city of Amsterdam to take over the transport of individuals in a mental health crisis. The purpose of the PA was to use fewer restrictive measures while guaranteeing safety for both patients and personnel.

Methods: A preimplementation-postimplementation design was used to assess the feasibility and utility of a single-vehicle PA service compared with police transport. Data on 498 rides were collected in the 4 months before implementation of the PA (pre-PA cohort) and on 655 rides in the 6 months after implementation (PA cohort).

Results: After PA implementation, most patients were transported by the PA (82%), and rides by police vehicle were very rare (1%). Individuals in the PA cohort had a greater transportation delay, compared with those in the pre-PA cohort, but the PA reduced use of coercive measures with no increase in the incidence of patient aggression. Among individuals in the PA cohort, hospitalization was more often voluntary than among those in the pre-PA cohort.

Conclusions: Transporting emergency psychiatric patients by a special PA rather than by the police reduced the use of coercive measures during transport, kept the occurrence of aggressive incidents stable, and was associated with fewer coercive hospital admissions.