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  • Title: Three IFRP studies investigate breast-feeding and contraception.
    Journal: Netw Res Triangle Park N C; 1981 Apr; 2(3):1-2. PubMed ID: 12281266.
    Abstract:
    The International Fertility Research Program is carrying out several studies focused on breastfeeding's contraceptive protection. A longitudinal study is investigating the relationship between breastfeeding and the return of ovulation and fertility after childbirth. The impact of factors such as the early introduction of supplementary foods, resumption of menses, and sexual practices on the return of ovulation will be analyzed. The study, which will be conducted at 4 geographic sites, will include a total of 100 women who are breastfeeding and a control group of 40 nonlactating mothers. Its ultimate goal will be to determine the optimum time for breastfeeding women with different cultural needs to start using contraceptives. A second study will seek to determine whether progestogen-only oral contraceptives (OCs) have advantages for lactating women. Trials in India, Malaysia, Argentina, and Egypt will compare 1000 lactating women who use progestogen-only OCs with an equal number of women who use nonhormonal contraception in terms of contraceptive acceptance and side effects and infant weight gain. The third study will survey breastfeeding patterns in relation to changing child spacing trends in a sample of 4000 women from Lagos, Nigeria. Analyzed will be the proportions of women who are using a modern method of fertility control, the proportions protected from unwanted pregnancy by the traditional practices of prolonged breastfeeding and sexual abstinence, and determinants of recent changes in the prevalence and duration of breastfeeding.
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