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. 2017 Jul 19;152(10):983–984. doi: 10.1001/jamasurg.2017.2230

Table 2. Response Time Data for Emergency Medical Services Encounters by Zip Code Classification.

Category No. Median (IQR), min Arrival Time, min
90th Percentile Mean (SD)
Suburban 1 538 203 6 (4-10) 14 7.7 (5.4)
Urban 146 682 6 (4-9) 12 7.0 (4.4)
Rural 68 283 13 (8-19) 26 14.5 (9.5)
Overall 1 753 168 7 (4-10) 14 7.9 (5.7)

Abbreviation: IQR, interquartile range.