There was no difference in the specificity between PDD-FURS and WL-FURS ( 1.0 ( 95 % CI : 0.75-1 .0 ) and 1.0 ( 95 % CI : 0.75-1 .0 ) respectively ) ( P = 1 ) , while PDD-FURS was significantly more specific than CTU ( CTU : 0.21 ( 95 % CI : 0.05-0 .51 ) ( P < 0.001 ) .
