Table 4. Characteristics of patients in training and validation data set.

Total n = 156	Training n = 99	Validation n = 57
Mean age (range)	56.5	59.3
Sex	Male, 67; Female, 32	Male, 33; Female, 24
Weight	62.1	59.3
Height	164.1	162.9
Previous treatment
Interferon	Yes: 40 No: 59	Yes: 27 No: 30
Interferon plus RBV	Yes: 19 No: 80	Yes: 7 No: 50
Initial dose of PEGIFN	85.8	89.5
Initial dose of RBV	662	677
WBC	4895	4864
RBC	459	452
Hb	14.4	14.3
Plt	16.1	17.4
AST	64	57
ALT	88	69
Cre	0.78	0.76
TC	176.3	1763
Diabetes mellitus	Yes: 8 No: 74 Not determined: 17	Yes: 7 No: 50 Not determined: 0
HCV RNA level	1957.7	1641.4
Total amount of PEGIFN (µg/kg/d)	1.11	1.22
Total amount of RBV (mg/kg/d)	8.57	7.79
SVR of HCV after 12 weeks	Yes: 51 No: 48	Yes: 29 No: 28

Data showed the mean or numbers of the factors.

No significant differences were exist in all factors between training data and validation data.