Table 1. Baseline characteristics of octogenarians undergoing transradial (TRI) and transfemoral intervention (TFI).

Characteristics	All patients			Propensity score-matched patients
	TRI, n = 184 (%)	TFI, n = 70 (%)	p	TRI, n = 48 (%)	TFI, n = 48 (%)	p
Age, year*	82.1 ± 2.6	81.6 ± 1.7	0.171	81.9 ± 2.2	81.7 ± 1.9	0.593
Female	59 (32.1)	23 (32.9)	0.904	16 (33.3)	18 (37.5)	0.670
Medical history of
Myocardial infarction	41 (22.3)	27 (38.6)	0.014	16 (33.3)	18 (37.5)	0.670
Prior CABG	2 (1.1)	16 (22.9)	< 0.001	2 (4.2)	4 (8.3)	0.677
Prior PCI	39 (21.2)	20 (28.6)	0.214	14 (29.2)	13 (27.1)	0.820
Stroke	14 (7.6)0	7 (10.0)	0.813	7 (14.6)	7 (14.6)	1
Diabetes mellitus	44 (23.9)	21 (30.0)	0.321	12 (25.0)	12 (25.0)	1
Hypertension	119 (64.7)	50 (71.4)	0.308	31 (64.6)	30 (62.5)	0.832
Hyperlipidemia	87 (47.3)	28 (40.0)	0.297	17 (35.4)	16 (33.3)	0.830
Diagnosis
STEMI	41 (22.3)	20 (28.6)	0.294	15 (31.2)	18 (37.5)	0.519
NSTEMI	12 (6.5)0	4 (5.7)	0.536	3 (6.2)	3 (6.2)	1
Unstable angina	84 (45.7)	28 (40.0)	0.418	21 (43.8)	17 (35.4)	0.404
Stable angina	44 (23.9)	18 (25.7)	0.765	8 (16.7)	10 (20.8)	0.601
Others	3 (1.6)	0 (0)	0.671	1 (2.1)	0 (0)0.	1
LVEF, %*	60.1 ± 9.3	56.8 ± 7.6	0.004	57.2 ± 9.8	56.7 ± 7.8	0.817
LVEF < 50%	22 (12.0)	10 (14.3)	0.617	10 (20.8)	7 (14.6)	0.423
Hemoglobin, g/L*	125.4 ± 15.2	125.5 ± 18.8	0.971	129.6 ± 15.6	124.0 ± 19.7	0.138
Creatinine, μmol/L*	90.8 ± 35.1	93.9 ± 20.3	0.572	87.1 ± 21.5	93.6 ± 24.2	0.272
GP IIb/IIIa usage	7 (3.8)	2 (2.9)	0.715	3 (6.2)	2 (4.2)	1
LMWH usage	120 (65.2)	46 (65.7)	0.941	36 (75.0)	30 (62.5)	0.186
Fondaparinux sodium usage	4 (2.2)	4 (5.7)	0.221	2 (4.2)	2 (4.2)	1

CABG, coronary arterial bypass grafting; GP, glycoprotein; LMWH, low molecular weight heparin; LVEF, left ventricle ejection fraction; NSTEMI, non-ST-segment elevation myocardial infarction; PCI, percutaneous coronary intervention; SD, standard deviation; STEMI, ST-segment elevation myocardial infarction.

* Presented as mean ± SD.