. 2019 Apr 22;23:101835. doi: 10.1016/j.nicl.2019.101835

Table 2.

Patient characteristics.

	Number	Mean Age (years)	Sex (male/female)	Grade (high/low)
Training set	74	42.76	48/26	31/43
Validation set	38	43.84	21/17	19/19
P value		0.6506^a	0.3225^b	0.4138^b

Student's t-test.

Chi-square test.