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KMID : 0904520110290010069
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Health and Medical Sociology
2011 Volume.29 No. 1 p.69 ~ p.97
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Impact of Delayed Childbearing on Infant Mortality by Maternal Education
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Kim Sang-Mi
Cho Young-Tae
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Abstract
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This study aims to empirically examine the impact of delayed childbearing on infant mortality, focusing on the interactive function of social status of mother with maternal age. A linked Birth/Infant Death data set from 2005 to 2008, provided by Statistics Korea, was employed for analysis. Survival Analysis was carried out to calculate hazard ratios of infant mortality by maternal age after adjustment of other variables, such as children’s biological characteristics and parents’ social status.
Results showed that delayed childbearing didn’t affect infant death; rather, old maternal age contributed to reducing hazard to infant mortality. It may be that as for mothers who graduated from at least high school, parents’ social merits such as good education and job security likely to increase and mitigate the biological disadvantages attached to old age. Moreover, they could prevent infant death by accessibility and affordability of high quality medical care and information etc. On the other hand, hazard to infant mortality for mothers with junior high or less education continuously increased as they aged, which demonstrates the “weathering effect”. However, marginal gap of its hazard between mothers of 20s and of early 30s presented that old age’s buffering effect was originated from the accumulated socioeconomic resources.
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KEYWORD
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Low fertility, Old maternal age, Delayed childbearing, Infant mortality
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