Table 1.

Summary Statistics

Variable	Mean		Standard Deviation
Total out-of-hospital time	36.05	Minutes	16.62
On-scene time	14.67	Minutes	8.496
First-response time	8.07	Minutes	6.073
Transport time	13.36	Minutes	9.723
Paramedic number of runs in last 3 months	17.69	Trauma runs	12.240
Paramedic total number of runs (noncensored)	408.75	Trauma runs	299.150
Firm number of runs in last 3 months	456.68	Trauma runs	528.720
Paramedic tenure (noncensored)	6.48	Years	3.189
Number of procedures and EMT certifications
Number of procedures in incident	2.00	Procedures	2.185
Cerification level: EMT-Basic	2.56%		0.158
Cerification level: EMT-Intermediate	0.57%		0.075
Cerification level: EMT-Paramedics	96.87%		0.174
Patient demographics and people in incident
Patient age	42.12	Years	25.10
Patient race: African American	40.80%		0.491
Patient race:White	55.86%		0.497
Patient gender: female	55.10%		0.497
Number of victims in incident	1.33	Victims	0.741
Type and location of trauma
Type of trauma: fall	31.59%		0.465
Type of trauma: motor vehicle crash	53.02%		0.499
Type of trauma: motorcycle accident	1.14%		0.106
Type of trauma: pedestrian accident	1.69%		0.129
Type of trauma: cut/stabbing	2.32%		0.151
Type of trauma: assault	8.74%		0.282
Type of trauma: gunshot	1.50%		0.122
Location of trauma: city street	20.70%		0.405
Location of trauma: county road	9.26%		0.290
Location of trauma: state/federal highway	23.68%		0.425
Location of trauma: residence	30.53%		0.461
Location of trauma: other	15.83%		0.365
Year and month
Year 2001	19.61%		0.397
Year 2002	21.55%		0.411
Year 2003	19.66%		0.397
Year 2004	19.75%		0.398
Year 2005	19.43%		0.396
January	7.54%		0.264
February	7.78%		0.268
March	8.76%		0.283
April	8.79%		0.283
May	9.15%		0.288
June	8.54%		0.279
July	8.78%		0.283
August	7.90%		0.270
September	7.99%		0.271
October	8.20%		0.274
November	8.33%		0.276
December	8.24%		0.275
Provider
Public EMS provider (e.g., fire department based)	18.64%		0.389
Hospital-based EMS company	27.23%		0.445
Private EMS provider (corporate)	54.13%		0.498