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. Author manuscript; available in PMC: 2013 Aug 16.
Published in final edited form as: Resuscitation. 2011 Mar 31;82(8):979–983. doi: 10.1016/j.resuscitation.2011.03.024

Table 1.

Summary statistics of included EMS agencies.

N Mean days to crossover1
Organizational structure2
 Fire Department 51 338
 Governmental, Non-Fire 20 338
 Private, Non-Hospital 7 327
 Other 4 215
Number of vehicles3
 1 - 5 11 244
 6 – 10 15 381
 11 - 50 49 338
 51+ 7 336
1

Mean days to crossover based on last day of month.

2

p-value = 0.28 for ANOVA test of equality of means.

3

p-value = 0..04 for ANOVA test of equality of means. Tukey's multiple comparison procedure gives a p-value <0.05 for comparing the means of the first two categories.