The results were as follows:
effectiveness of emergency contraceptive pills, 74%;
effectiveness of minipills, comparable with emergency contraceptive pills, 74%;
effectiveness of IUD, 99%;
percentage of unintended pregnancies which are unwanted, 31%;
incidence of uterine perforation for the copper-T IUD, 0.06%; and
annual probability of failure during typical use of contraceptive methods other than condoms, 0.21.