[A comparison between the Multiload Cu 250 and the Lippes loop intrauterine contraceptive devices].

In a series of 604 White women in whom intra-uterine contraceptive devices had been inserted, it was found that the Multiload Cu 250 performed significantly better than the Lippes loop. The occurrence of pregnancies in patients with the intra-uterine device in situ, as well as expulsion of the device, was three times higher with the Lippes loop than with the Multiload. The critical importance of correct insertion is stressed.