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. Author manuscript; available in PMC: 2010 Jan 5.
Published in final edited form as: Circ Cardiovasc Qual Outcomes. 2009 Jan 13;2(1):9–15. doi: 10.1161/CIRCOUTCOMES.108.813741

Table 2. Time Spent in EMS Transport, in Minutes.

Elapsed Time (in minutes)
Covariates Segment 1:
Response (s.e.)
Segment 2:
On-scene (s.e.)
Segment 3:
Transport (s.e.)
Total:
EMS Depot to
Hospital (s.e.)
Distance
Distance: EMS Depot to
scene (miles)
0.92 (0.11) -- -- 1.33 (0.34)
Distance: Scene to
hospital (miles)
-- -- 1.21 (0.03) 1.33 (0.05)


Time
Rush hour (morning) 0.40 (0.17)* -- -0.15 (0.35) 0.57 (0.48)
Rush hour (evening) 0.01 (0.17) -- 1.37 (0.34) 2.01 (0.50)
Weekday 0.04 (0.11) 0.33 (0.23) 0.31 (0.23) 0.56 (0.33)


Patient Characteristics
Black -0.01 (0.11) -0.25 (0.24) 0.38 (0.24) 0.08 (0.34)
Latin/Hispanic 0.65 (0.17) -0.60 (0.35) -0.05 (0.33) 0.10 (0.48)
Asian/Pacific Islander -0.95 (0.32) 2.76 (0.67) -0.97 (0.64) 2.88 (0.91)
Native American -0.48 (0.29) 2.36 (0.61) 1.17 (0.58)* 3.03 (0.84)
Other Race
(not white/other)
-1.05 (0.35) -0.25 (0.78) -0.37 (0.79) -1.72 (1.16)
Unknown Race -0.40 (0.22) 3.44 (0.48) 0.52 (0.49) 0.03 (0.01)
Age (yrs.) -0.01 (0.00)* 0.03 (0.01) 0.01 (0.01) 0.03 (0.01)*
Female -0.23 (0.10)* -1.51 (0.20) 0.57 (0.20) -2.30 (0.28)


Neighborhood Characteristics
Population density
(residents/sq.mi.)
-0.10 (0.05)* 0.27 (0.11)* -0.07 (0.10) 0.26 (0.15)
Race (% white) 0.02 (0.07) 0.68 (0.16) -0.45 (0.16) 0.36 (0.22)
Birthplace
(% Foreign-born)
-0.01 (0.06) 0.16 (0.12) -0.16 (0.11) 0.01 (0.17)
Income (% households
under 200% FPL)
0.18 (0.07)* -0.21 (0.15) -0.18 (0.15) -0.10 (0.21)
*

p < 0.05

p < 0.01

p < 0.001

All estimates are adjusted for patient vital statistics, including blood pressure, pulse and respiratory rate. White race and male are reference categories. Continuous variables were centered on their mean value. Coefficients on neighborhood level covariates represent the change in outcome per one standard deviation from the mean