[Difficulties encountered in gathering information on illegal abortion in the population of women].

Any attempt to study the practice of illegal abortion faces the problem of asking women about a delicate, sensitive issue that has many implications. This may make it difficult to obtain truthful information on the subject. Results related to methodological aspects are emphasized and their possible association with variables included in a cross-sectional study carried out among 1,955 women, of 15 to 49 years of age is analysed. The frequency and conditions under which induced abortion was performed in a region of S. Paulo State are investigated. The women were interviewed at home using a pre-tested, structured questionnaire. Most of the women interviewed declared they had never had an abortion nor had they thought of having one, and four percent referred to having had an induced abortion. However, another 16.7 percent said that they had taken tea or medicine at least once to bring on their menses. In this group, most of the women who thought they were pregnant at that time said they had had never an abortion, in spite of having bled after drinking tea or medicine. The results lead to the conclusion that women tend no omit information on the practice of abortion when questioned directly. This is especially true of those who use oral means to bring on their menses and who seemed not to consider this a way of inducing an abortion.