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Table 1 Characteristics of the 405 patients at the time of liver biopsy (comparison between the training and the validation sets).

From: Accuracy of hyaluronic acid level for predicting liver fibrosis stages in patients with hepatitis C virus

Characteristics Training set (n = 151) Validation set (n = 254) All patients (n = 405)
Age (Mean ± SD) 51 ± 14 47 ± 12 49 ± 13
Male (n (%)) 82 (54) 133 (52) 215 (53)
HA (μg/l) (Mean {95% CI}) 63 {47;79} 53 {41;65} 57 {47;67}
Stage of fibrosis (n (%))    
0 28 (19) 33 (13) 61 (15)
1 51 (34) 103 (41) 154 (38)
2 33 (22) 58 (23) 91 (23)
3 27 (18) 47 (18) 74 (18)
4 12 (7) 13 (5) 25 (6)