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[Contraception as a determinant factor in Colombian fertility].


 A model of contraceptive use as a conditioning factor in Colombian fertility is described and tested using data from the National Fertility Survey of 1976 in which 5378 women representative of the country and its geographical regions were interviewed. The variables included in the model are cumulative fertility, desired fertility, duration of union, use of contraception, knowledge of effective contraception, education, women's labor force participation, zone of residence, and age. The analysis demonstrates that cumulative fertility depends on couple's ideal family size; duration of union, especially in the 1st 10 years and increasingly less thereafter; mother's education, which has a negative effect that was the most consistent of all those measured; and rural or urban residence. The indirect effects of education and area of residence were found to be present but small. The variables of knowledge and use of contraceptive methods deserve consideration because of their potential relevance for family planning campaigns. Although over 95% of women had knowledge of effective methods of contraception, only 50 to 66% reported having used contraception at any time in their lives.
