passages.id: split_7_validation_1667_passage
passages.type: progene_text
passages.text: The frequencies of KIR2DS1 and KIR2DL5 were significantly increased in PV cases compared with controls ( KIR2DS1 , 43 of 96 ( 45 % ) in cases vs 14 of 50 ( 28 % ) in controls ; KIR2DL5 , 46 of 96 ( 48 % ) in cases vs 15 of 50 ( 30 % ) in controls , p < 0.05 for both ) , and the frequency of carriage of at least one presumed " B " haplotype , inferred from patterns including KIR2DL2 , KIR2DL5 , and/or various combinations of activating KIRs , was also statistically increased in the PV cases ( 53 of 96 ( 55 % ) in cases vs 18 of 50 ( 36 % ) in controls , p < 0.04 ) .