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    Improvement in the biological standard of living in 20th century Korea: Evidence from age at menarche

    Access Status
    Open access via publisher
    Authors
    Sohn, Kitae
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    Sohn, K. 2017. Improvement in the biological standard of living in 20th century Korea: Evidence from age at menarche. American Journal of Human Biology. 29 (1).
    Source Title
    American Journal of Human Biology
    DOI
    10.1002/ajhb.22882
    ISSN
    1042-0533
    School
    Department of Economics & Property
    URI
    http://hdl.handle.net/20.500.11937/61955
    Collection
    • Curtin Research Publications
    Abstract

    © 2016 Wiley Periodicals, Inc. Objectives: We used age at menarche to understand improvement in the biological standard of living in South Korea during the 20th century. Methods: The main dataset, the Korean National Health and Nutrition Examination Survey, provided a consistent source of nationally representative data with a large number of observations over a long period of time. We calculated mean ages at menarche by birth year and estimated the rate of decrease in age at menarche, while avoiding survival bias. Results: The mean age at menarche decreased from 16.64 for the birth year 1941 to 12.68 for the birth year 1992, decreasing 0.78 (or 0.81 in a regression) years per decade for the period. Comparisons with other populations demonstrate that this is the fastest rate of decline ever known. In contrast to other developed countries, the decreasing rate in Korea does not appear to slow. We also compared the trend in age at menarche to that of height and found that the rate of increase in height is also the fastest in history. Conclusions: Age at menarche is an appropriate index of change in the general standard of living in South Korea over the 20th century. Am. J. Hum. Biol. 29:e22882, 2017. © 2016 Wiley Periodicals, Inc.

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