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首页> 美国卫生研究院文献>Proceedings of the Royal Society B: Biological Sciences >Grandparental investment and reproductive decisions in the longitudinal 1970 British cohort study
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Grandparental investment and reproductive decisions in the longitudinal 1970 British cohort study

机译：1970年英国纵向队列研究中的祖父母投资和生殖决策

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摘要

There has been a recent increase in interest among evolutionary researchers in the hypothesis that humans evolved as cooperative breeders, using extended family support to help decrease offspring mortality and increase the number of children that can be successfully reared. In this study, data drawn from the 1970 longitudinal British cohort study were analysed to determine whether extended family support encourages fertility in contemporary Britain. The results showed that at age 30, reported frequency that participants saw their own parents (but not in-laws) and the closeness of the bond between the participant and their own parents were associated with an increased likelihood of having a child between ages 30 and 34. Financial help and reported grandparental childcare were not significantly positively associated with births from age 30 to 34. Men's income was positively associated with likelihood of birth, whereas women's income increased likelihood of birth only for working women with at least one child. While it was predicted that grandparental financial and childcare help would increase the likelihood of reproduction by lowering the cost to the parent of having a child, it appears that the mere physical presence of supportive parents rather than their financial or childcare help encouraged reproduction in the 1970 British birth cohort sample.
机译：进化研究人员对人类进化为合作育种者的假说的兴趣最近有所增加，该假说利用扩大的家庭支持来帮助降低后代死亡率并增加可以成功育成的子女数量。在这项研究中，分析了从1970年英国纵向队列研究中得出的数据，以确定大家庭的支持是否会促进当代英国的生育。结果表明，在30岁时，据报告参加者看他们自己的父母（而不是亲家）的频率，并且参与者与他们自己的父母之间的亲密关系与生下30岁至25岁的孩子的可能性增加相关。 34.经济援助和已报告的祖父母育儿与30岁至34岁之间的分娩没有显着正相关。男子的收入与分娩的可能性呈正相关，而妇女的收入仅对有至少一个孩子的职业妇女增加了分娩的可能性。虽然据预测，祖父母的财务和育儿帮助将通过降低父母生育孩子的成本来增加生育的可能性，但在1970年看来，仅靠父母的physical养而不是他们的经济或育儿就可以鼓励生育。英国出生队列样本。

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