Mean PVPR change from baseline after 24 months was significantly ( P = 0.002 ) lower in the CaD group [ -3.87 ( SD 12.03 ) ] than in the PLA group [ +2.03 ( SD 12.86 ) ] , corresponding to a 13.2 % decrease in the CaD group and a 7.3 % increase in the PLA group .
