Table 1.

Characteristic of the patients

Characteristic	Tongji Hospital, China		External centers
	Training cohort	Test cohort	France	Argentina
Total	280	70	25	8
Age < 65	115 (mean age 55)	31 (mean age 54)	8 (mean age 57)	2 (mean age 60)
Age ≥ 65	165 (mean age 73)	39 (mean age 73)	17 (mean age 73)	6 (mean age 80)
Male	163	26	15	5
Female	117	44	10	3
Age
Mean	67	66	65	75
Median	67	67	64	77
Range	[20, 93]	[21, 92]	[49, 86]	[55, 91]
IQR	14	15	13	14