Table 1.

Balancing check of covariates before and after propensity score matching based on logit model.

	Unmatched or matched	mean		ASMD	t-test
		Statin	No-Statin		t	p
Male	U	0.704	0.593	−0.2293	−2.836	0.005
	M	0.690	0.669	−0.042	−0.376	0.707
Age > 65	U	0.737	0.416	−0.6652	−7.898	<.001
	M	0.731	0.690	−0.091	−0.775	0.439
Obesity	U	0.134	0.0830	−0.1756	−1.846	0.037
	M	0.124	0.117	−0.021	−0.180	0.858
Hypertension	U	0.771	0.365	−0.8644	−10.262	<0.001
	M	0.731	0.697	−0.076	−0.648	0.517
Diabetes	U	0.352	0.116	−0.6550	−6.222	<.001
	M	0.303	0.359	0.0915	0.997	0.319
Smoking	U	0.185	0.0920	−0.2950	−2.964	0.003
	M	0.138	0.124	−0.040	−0.347	0.729
CAD	U	0.413	0.0573	−1.1595	−9.371	<.001
	M	0.284	0.248	−0.077	−0.663	0.507
AF	U	0.168	0.0679	−0.3533	−3.363	<.001
	M	0.159	0.152	−0.019	−0.162	0.872
HF	U	0.112	0.0271	−0.4127	−3.460	<.001
	M	0.0966	0.0966	0.000	0.000	1.000
CKD	U	0.140	0.0558	−0.3235	−3.053	0.003
	M	0.124	0.131	0.020	0.175	0.861
COPD	U	0.0694	0.0838	−0.0556	−0.660	0.510
	M	0.0828	0.103	0.071	0.605	0.546
Cerebrovascular disease	U	0.0271	0.0782	−0.2683	−2.421	0.016
	M	0.0552	0.0621	0.029	0.249	0.804
Malignancy	U	0.112	0.0694	−0.1577	−1.655	0.062
	M	0.0966	0.0552	−0.0897	−1.330	0.185

ASMD = Absolute standardized mean difference; CAD = Coronary artery disease; AF = atrial fibrillation; HF = heart failure; CKD = Chronic kidney disease; COPD = Chronic obstructive pulmonary disease.