Use effectiveness of the Prentif cervical cap in private practice: a prospective study

Of two-hundred-sixty women seeking cervical cap contraception, exactly half subsequently used the Prentif cavity rim cap as their sole method of contraception. The one year continuation rate for these exclusive cap users was 56.7 per hundred. No major side effects related to the use of the Prentif cap were observed in the course of this study, involving 918 women-months in year 1. Pregnancy and dislodgement of the cap during use were the principal reasons for discontinuation of exclusive use, with gross rates of 19.1 and 12.9 per 100 at one year, respectively.