Table 2.

Likelihood of B-CPR delivery by neighborhood-level ethnicity

	Univariate Analysis			Multivariable Analysis
	B-CPR OR (95% CI) n=18,927	Global	p-value	B-CPR OR (95% CI) n=9,406	Global	p-value
Hispanic neighborhood
Census tract, OR (95% CI)
<25%	-	<0.001		-	0.026
25%-50%	0.81 (0.74-0.88)		<0.001	0.91 (0.78-1.05)		0.191
51%-75%	0.61 (0.55-0.68)		<0.001	0.79 (0.65-0.95)		0.014
>75%	0.60 (0.50-0.71)		<0.001	0.72 (0.55-0.96)		0.025

OR: Odds Ratio, CI: Confidence Interval, B-CPR: Bystander cardiopulmonary resuscitation, Global: Global P-value from the Wald test. Multivariable regression controlling for site, time of day, location type, age, race of patient, ethnicity of patient, gender, bystander call to arrival of emergency medical services, and witness status