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Related Experiment Videos

A characteristic change in infant mortality rate decrease in Japan.

Y Nakamura1, M Nagai, H Yanagawa

  • 1Department of Public Health, Jichi Medical School, Tochigi-ken, Japan.

Public Health
|March 1, 1991
PubMed
Summary
This summary is machine-generated.

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Japan

Area of Science:

  • Pediatrics
  • Public Health
  • Demography

Background:

  • Infant mortality rate (IM) in Japan significantly decreased from 1947 to 1987.
  • Neonatal mortality rate (NM) and infant mortality rate excluding neonatal deaths (IEN) trends were analyzed.
  • Shifting contributions of NM and IEN to the overall IM decline were observed over time.

Purpose of the Study:

  • To analyze the trends and causes of infant mortality in Japan over a 41-year period.
  • To identify factors contributing to the decline in infant mortality.
  • To suggest strategies for further reduction of infant mortality.

Main Methods:

  • Analysis of infant mortality rate (IM) data from 1947-1987 in Japan.
  • Separation of IM into neonatal mortality rate (NM) and infant mortality rate excluding neonatal deaths (IEN).

Related Experiment Videos

  • Examination of major causes of infant death: congenital anomalies, birth trauma/perinatal asphyxia, and injuries/poisoning.

    • Main Results:

    • Overall infant mortality (IM) showed a considerable decrease during the study period.
    • Decreases in IEN were the primary driver of IM reduction until the 1960s.
    • Steeper declines in NM after the 1980s became the main contributor to IM reduction.
    • Congenital anomalies showed minimal change, suggesting limited impact from medical advancements.

    Conclusions:

    • Further reduction in infant mortality requires enhanced perinatal care and injury prevention strategies.
    • Medical treatment for congenital anomalies has reached its efficacy limits.
    • Shifting causes of infant death necessitate evolving public health interventions.