Adjusting for age , marital status , hormonal contraceptive use , unprotected sex in the last week and TV at baseline , intermediate Nugent score , and BV at the prior visit were associated with an increased risk of TV ( intermediate score : adjusted hazard ratio [ aHR ] , 1.73 ; 95 % confidence interval [ CI ] , 1.21-2 .19 ; BV : aHR , 2.40 ; 95 % CI , 1.92-3 .00 ) .