Table 1.

Baseline characteristics of patients in training dataset and test dataset.

Characteristics	Training dataset			Test dataset
	Low Grade	High Grade	P value	Low Grade	High Grade	P value
Age, mean ± SD, y	56.45 ± 10.44	49.74 ± 8.58	<0.01	51.38 ± 8.22	51.88 ± 10.74	0.855
Gender<N
Male	40	46	0.317	19	21	0.662
Female	15	11		5	4
AFP (ug/L) Median	20.5	32.4	0.186	20.55	27.3	0.15
(IQR)	(8.21, 42.3)	(7.82,45.95)		(6.95,35.54)	(10.54,61.82)