The overall specificity estimate for HPV-positive women was 64.0 % ( 95 % CI , 57.4 % -70.2 % ) : 66.7 % ( 95 % CI , 59.8 % -73.0 % ) for experts and 60.5 % ( 95 % CI , 59.8 % -73.0 % ) for nonexperts .