Table 6.

MCA focus group participant characteristics: MI has 8 trauma regions delineated by geographic proximity and similarity as determined by the Michigan Department of Health and Human Services. These trauma regions are responsible for the coordination of trauma care in their areas and were used in sampling MCAs to assure geographic diversity.

Focus groups	Trauma region	Roles	Community setting
1	Regions 2N, 2S and 1	2 Executive directors 1 Medical director 4 EMS coordinators 2 Paramedics 1 QI coordinator	Urban and suburban
2	Region 5	4 Executive directors 5 EMS coordinators 2 QI coordinators 1 Medical directors 1 Paramedic	Suburban and rural
3	Regions 3 and 7	2 Executive directors 2 Paramedics 1 EMS coordinator 1 Medical director 1 QI coordinator	Rural and suburban
4	Region 8	2 Executive directors 1 Medical director 1 EMS coordinator/paramedic 1 EMS coordinator	Rural