Hazard ratios for development of CIN2 + were 10.44 ( 95 % CI : 6.96-15 .65 ) , 9.65 ( 5.97-15 .60 ) , 5.68 ( 3.50-9 .21 ) , 5.38 ( 2.87-10 .06 ) and 3.87 ( 2.38-6 .30 ) for HPV-16 , HPV-33 , HPV-31 , HPV-45 and HPV-18 , respectively .