In sustained responders , fibrosis progression rate decreased from 0.26 Metavir unit ( interquartile range : 0.19-0 .34 ) to -0.67 ( -0.67 to 0 ) ( P < 0.0001 ) and from 0.81 SFS unit ( 0.48-1 .13 ) to -1.33 ( -3.67 to 0 ) ( P < 0.0001 ) .
