passages.id: split_6_test_3316_passage
passages.type: progene_text
passages.text: CX3CR1 V249I was associated with lower 1999 CWP prevalence ( 16.7 % , 13.2 % , 0.0 % for VV , VI and II ) ; the effect was most evident in miners with high dust exposure ( 31.6 % , 21.7 % , 0.0 % ) .