International Journal of Human Diversity and Evolution
Coverage: 1923-1941 (Vols. I-XIX) & 1962-2023 (Vols. 1-61)
ISSN 0323-1119 (Print)
ISSN 2570-9127 (Online)
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'Fuster V, Luna F, Perrino A, Edo MA, 2003: Biometric Analysis and Causes of Infant Mortality in Spain (1975-1998). Anthropologie (Brno) 41, 1-2: 123-125'.
The temporal change of the infant mortality rate, taking into account the contribution of endogenous and exogenous components is analyzed for the years 1975-1998. The above is made by a direct (registered causes of death) and by a biometric method (age distribution of infant deaths). In the period studied infant mortality decreased from 16.4 to 5.2 ‰, which is reflected in both components. But while the endogenous component provided by the biometric method began to decrease in 1980, values given by the direct method increased, mainly since 1985. The biometric method underestimates the endogenous component (1975-79 = 8.6%, 1995-98 = 30.1%) and, contrarily, overestimates the exogenous component. To study the influence of age on infant mortality, two groups were considered: less than 1 month and from 1 month to less than 1 year. From the first to the last period the percentage of the endogenous infant mortality respecting total deaths progressively increased. Simultaneously these causes of deaths were slightly less frequent in the neonatal period than in the post-neonatal. This change in the age pattern at death of endogenous infant mortality contradicts one of the assumptions required by the biometric method, the application of which is not here advisable.
Infant mortality - Endogenous - Exogenous - Biometric method - Spain

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