RESUMO
PIP: The present study explores the experience obtained with the Lippes Loops C and D in the family planning program of the Secretaria de Salubridad y Asistencia (Ministry of Health) of Mexico. The patterns observed are sufficiently similar to those reported for the majority of other countries for which data are available that it would appear that no special conditions affecting use of this method exist in Mexico. The study is viewed as having utility for practicing physicians as it provides information on relative frequency of temporary and definitive use terminations, relative frequency of method failure, expulsion, withdrawals for various reasons, and the specific groups of women most disposed to each type of event. The variables studied in this representative sample of acceptors are duration of method use, number of pregnancies prior to acceptance, number of children living, age, and educational level. (author's)^ieng