Table 2.

Descriptive Statistics (Unadjusted) of the 30-Day Adverse Outcomes of our Study Cohort. Adverse Outcomes Are Stratified by Those Discharged and Hospitalized after an Emergency Department Visit for Chest Pain. Acute Myocardial Infarction (AMI) or Death Were Constructed to be Mutually Exclusive as Each Has Important Clinical Meaning. Eight Patients Had Both an AMI and Died, Explaining the Total Cohort (n=322) Used in the Primary Analysis

	Total cohort	Discharged	Hospitalized	Absolute standardized mean differences
	N= 77,652	N= 66,626 (86%)	N= 11,026 (14%)
AMI or death within 30 days*	322 (0.4%)	158 (0.2%)	164 (1.5%)	0.13
Death within 30 days	137 (0.2%)	70 (0.1%)	67 (0.6%)	0.09
AMI within 30 days	193 (0.2%)	94 (0.1%)	99 (0.9%)	0.09
Coronary revascularization within 30 days	200 (0.3%)	124 (0.2%)	76 (0.7%)	0.07
MACE within 30 days*	331 (0.4%)	163 (0.2%)	168 (1.5%)	0.13

*Absolute standardized mean difference greater than 0·1