Table 2.

Summary of clinical characteristics for the 3 different datasets used in the study

Characteristics	Madrid			Hoboken			Seoul
	Alive	Expired	p value	Alive	Expired	p value	Alive	Expired	p value
n	1439	189		114	87		310	5
Age (mean)	65.7	79.6	< 0.001	61.9	69.1	0.003	45.7	64.0	0.053
Female (%)	41.3	28.6	< 0.001	48.2	32.2	0.032	48.4	0	0.062
30-day mortality (%)	88.4	11.6	< 0.001	56.7	43.3	< 0.001	98.4	1.6	< 0.001
Diabetes (%)	16.1	24.1	0.008	39.4	35.6	0.682	11.0	40.0	0.103
Hypertension (%)	6.1	10.2	0.055	54.3	55.2	0.974	13.9	80.0	0.002
Hyperlipidemia (%)	26.0	35.3	0.01	32.5	34.5	0.880	6.1	20.0	0.283
Congestive heart failure (%)	4.3	7.0	0.156	16.7	14.9	0.891	1.6	20.0	0.093
Ischemic heart disease (%)	6.0	13.4	< 0.001	16.7	14.9	0.891	2.3	20.0	0.122
Stroke (%)	2.6	7.5	< 0.001	2.6	4.6	0.469	2.6	0.0	-
COPD (%)	4.7	8.0	0.083	9.6	10.3	0.941	0.6	20.0	0.047
CKD (%)	5.1	11.8	< 0.001	7.0	20.7	0.008	1.3	20.0	0.078
Chronic liver disease (%)	0.6	4.8	< 0.001	0.9	0.0	1.000	1.0	0.0	-
Active cancer (%)	4.0	12.3	< 0.001	6.1	3.4	0.519	0.0	0.0	-

COPD chronic obstructive pulmonary disease, CKD chronic kidney disease