Breast-feeding and fertility among Philippine women: trends, mechanisms and impact

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Abstract
In pre-transitional societies, contraceptive practice is usually low or absent and prolonged breast-feeding has been identified as the major factor in keeping marital fertility levels below the biological maximum (Bongaarts, 1978), so that the length of birth intervals is the strongest determinant of completed family size.In transitional societies there is accumulating evidence that, with increasing modernization, the percentage of women who initiate breast-feeding and the duration of breast-feeding are declining (Jelliffe & Jelliffe, 1972; McCann et al., 1981; Rosa, 1976). Shorter durations of breast-feeding are observed for women who are more educated, belong to the upper socioeconomic class and live in urban areas (Jain & Sun, 1972; Lesthaeghe & Page, 1980).