Table 2 Multivariable regression models for whether patients arrived by ambulance and time from symptom onset to hospital arrival by ethnicity

Outcome variable			Odds ratio for South Asians versus Caucasians (95% CI)	p Value
Arrival by ambulance
All patients	(n = 96 444)	Model 1	0.64 (0.60 to 0.69)	<0.001
	(n = 76 585)	Model 2	0.60 (0.55 to 0.65)	<0.001
MI diagnosis	(n = 45 202)	Model 1	0.67 (0.60 to 0.74)	<0.001
	(n = 35 420)	Model 2	0.65 (0.57 to 0.74)	<0.001
ACS diagnosis	(n = 18 997)	Model 1	0.65 (0.57 to 0.74)	<0.001
	(n = 18 570)	Model 2	0.52 (0.45 to 0.60)	<0.001
Other chest pain	(n = 28 352)	Model 1	0.70 (0.59 to 0.82)	<0.001
	(n = 22 157)	Model 2	0.64 (0.53 to 0.77)	<0.001
Time (log) from onset to arrival (hours)			Beta coefficient for South Asians versus Caucasians (95% CI)	p Value
All patients	(n = 85 607)	Model 1	0.01 (−0.03 to 0.05)	0.51
	(n = 67 115)	Model 2	0.02 (−0.03 to 0.06)	0.45
MI diagnosis	(n = 42 457)	Model 1	−0.06 (−0.11 to −0.01)	0.02
	(n = 32 770)	Model 2	−0.07 (−0.13 to −0.01)	0.03
ACS diagnosis	(n = 20 454)	Model 1	0.13 (0.06 to 0.20)	<0.001
	(n = 16 701)	Model 2	0.11 (0.04 to 0.19)	0.003
Other chest pain	(n = 22 054)	Model 1	0.05 (−0.04 to 0.14)	0.28
	(n = 17 221)	Model 2	0.12 (0.02 to 0.22)	0.02

ACS, acute coronary syndrome; MI, myocardial infarction.
Model 1 is adjusted for sex and age group.
Model 2 is adjusted for sex, age group, past MI, angina, diabetes, hypertension, smoking status.