Supplement Table 1. Subgroup analyses of in-hospital mortality and morbidities in TSGH-CHD ACS population.

	Overall (N = 353)	Medical treatment (N = 44)	POBA only (N = 18)	PCI with stent (N = 267)	CABG (N = 24)
STE-ACS population
Hospital stay (days)	8.3 ± 15.5	10.0 ± 13.8	5.1 ± 5.6	7.1 ± 15.8	20.4 ± 15.3*
In-hospital mortality	35 (9.9%)	5 (11.4%)	6 (33.3%)	21 (7.9%)0	3 (12.5%)*
In-hospital stroke	3 (0.8%)	1 (2.3%)	0 (0.0%)	1 (0.4%)	1 (4.2%)
Major bleeding	10 (2.8%)	1 (2.3%)	0 (0.0%)	8 (3.0%)	1 (4.1%)

	Overall (N = 545)	Medical treatment (N = 93)	POBA only (N = 56)	PCI with stent (N = 344)	CABG (N = 52)
NSTE-ACS population
Hospital stay (days)	10.4 ± 15.3	11.0 ± 17.9	9.6 ± 11.7	9.0 ± 15.0	19.1 ± 13.4*
In-hospital mortality	38 (7.0%)	13 (14.0%)	6 (10.7%)	11 (3.2%)	8 (15.4%)*
In-hospital stroke	2 (0.4%)	1 (1.1%)	0 (0.0%)	1 (0.3%)	0 (0.0%)
Major bleeding	9 (1.7%)	1 (1.1%)	2 (3.6%)	5 (1.5%)	1 (1.9%)

	Overall (N = 105)	Medical treatment (N = 31)	POBA only (N = 9)	PCI with stent (N = 58)	CABG (N = 7)
UA population
Hospital stay (days)	5.8 ± 9.3	3.5 ± 2.7	4.7 ± 4.4	6.3 ± 11.5	13.6 ± 7.5
In-hospital mortality	2 (1.9%)	0 (0.0%)	0 (0.0%)	1 (1.7%)	1 (14.3%)
In-hospital stroke	1 (1.0%)	0 (0.0%)	0 (0.0%)	1 (1.7%)	0 (0.0%)
Major bleeding	1 (1.0%)	0 (0.0%)	1 (11.1%)	0 (0.0%)	0 (0.0%)

CABG, coronary artery bypass grafting; NSTE-ACS, non-ST elevation acute coronary syndrome; PCI, percutaneous coronary intervention; POBA, plain old balloon angioplasty; STE-ACS, ST-elevation acute coronary syndrome; UA, unstable angina.

* Indicates significant difference between four groups with different therapeutic interventions.