Table 2.

In-Hospital mortality in CHD and Non-CHD patients before and after the PSM.

Statin vs. non-statin	Crude mortality rate			Unmatched	Unmatched	Matched
	Statin	Non-statin	p	Unadjusted HR.* (95% CI) Statin vs. Nonstatin	Adjusted HR. (95% CI) Statin vs. Nonstatin	Adjusted HR. (95% CI) Statin vs. Nonstatin
Overall	6.44%	10.88%	< 0.001	0.46 (0.31,0.69)	0.47 (0.29,0.77)	0.13 (0.05,0.36)
CHD	13 (10.4%)	32 (26.0%)	0.001	0.28 (0.15,0.54)	0.46 (0.23,0.90)	0.30 (0.09,0.98)
Non-CHD	13 (4.7%)	265 (10.2%)	0.003	0.35 (0.20,0.62)	0.25 (0.13,0.47)	0.23 (0.1,0.49)

*HR, the hazard ratio of in-hospital mortality between statin and non-statin (reference).