THE EFFECTS OF BREAST-FEEDING AND NUTRITION ON FECUNDABILITY IN RURAL BANGLADESH - A HAZARDS-MODEL ANALYSIS
THE EFFECTS OF BREAST-FEEDING AND NUTRITION ON FECUNDABILITY IN RURAL BANGLADESH - A HAZARDS-MODEL ANALYSIS
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DOI：
10.1080/0032472031000142986
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发表时间：
1987-11-01
影响因子：
2.4
通讯作者：
CHOWDHURY, AKMA
中科院分区：
文献类型：
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作者：
JOHN, AM;MENKEN, JA;CHOWDHURY, AKMA
从孟加拉国的“自然生育力的决定因素”研究中获得的数据与多变量风险模型一起使用，以研究妇女之间生育力的变化，特别是营养状况、母乳喂养做法和每月怀孕概率之间的关系。研究发现，生育能力在特定年龄的女性之间以及特定女性的年龄之间都存在差异。这种变化与四个变量有关：分居，影响性交频率;年龄，代表生物学变化;哺乳习惯;以及闭经的持续时间。高于饥饿或饥饿水平的营养不是繁殖力的重要决定因素。最令人惊讶的发现是母乳喂养模式对生育能力的影响：当一个怀孕的妇女开始给孩子断奶时，她怀孕的可能性会增加，因为她的血清催乳素会抑制排卵，降低。因此，那些最有可能怀孕的怀孕妇女是那些在最近的过去已经完全断奶的婴儿。
Data taken from the ‘Determinants of Natural Fertility’ study, Bangladesh, are used with multivariate hazard models to study variations in fecundability between women, especially the relationship between nutritional status, breastfeeding practices, and the monthly probability of conceiving. It is found that fecundability varies both between women of a given age and, for a particular woman, by age. The variation is related to four variables: separation, which affects coital frequency; age, which represents biological changes; lactation practices; and the duration of amenorrhoea. Nutrition above famine or starvation levels is not a significant determinant of fecundability. The most surprising finding is the effect of the pattern of breastfeeding on fecundability: as a menstruating woman begins to wean her child, her probability of conceiving increases as her serum prolactin, which inhibits ovulation, decreases. Thus, those menstruating women who are most likely to conceive are those who have completely weaned their infants in the very recent past.