Outcome	Without HIT, %	With HIT, %	aOR (95% CI)	P‐value*
Primary outcome
In hospital mortality	4.6	13.7	1.68 (1.226–2.303)	0.001*
Secondary outcomes
Length of stay (days), mean	4.4	15.8	10.07 (8.921–11.217)#	<0.001*
Total hospital charges (US$), mean	94899	354,149	238,831 (189,781–287,881)#	<0.001*
Percutaneous coronary intervention	47.9	28.5	0.48 (0.392–0.604)	<0.001*
Coronary artery bypass graft	8.7	37.9	6.05 (5.000–7.312)	<0.001*
Intra‐operative and postoperative complications of circulatory system	2.3	9.0	3.16 (2.289–4.354)	<0.001*
Post‐procedural cardiogenic shock	0.2	2.2	5.61 (2.999–10.502)	<0.001*
Cardiac arrest	2.9	8.0	1.67 (1.175–2.383)	0.004*
Cardiogenic shock	6.2	28.1	3.55 (2.796–4.504)	<0.001*
IABP placement	4.0	19.7	4.29 (3.328–5.536)	<0.001*

Abbreviations: *; statistically significant, #; adjusted mean difference, aOR: adjusted odds ratio, CI: confidence interval, IABP: Intra‐aortic balloon pump.

Adjusting factors: age, sex, race, charlson comorbidity index, hospital location and teaching status, hospital bed size, hospital region, dyslipidemia, hypertension, obesity, chronic kidney disease, liver disease, smoking, presence of pacemaker, chronic obstructive pulmonary disease, cerebral infarction and peripheral vascular disease.