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[Secular trends of demographic parameters]
Uwe Jaeger1, Lutz Finke, Konrad Zellner
1Institut für Humangenetik und Anthropologie der Friedrich Schiller-Universität, Jena.
Summary
This study tracks demographic shifts, revealing increased population density and life expectancy in Germany due to reduced mortality. Fertility rates declined, while the average age at marriage and single motherhood rose significantly.
Area of Science:
- Demography
- Population Studies
- Public Health
Background:
- Secular demographic changes are influenced by socioeconomic and public health advancements.
- Understanding these trends is crucial for policy-making and resource allocation.
Purpose of the Study:
- To analyze long-term changes in key demographic parameters in Germany.
- To investigate the underlying causes and biological significance of these demographic shifts.
Main Methods:
- Analysis of historical demographic data including population density, life expectancy, age at marriage, birth rates, and fertility.
- Comparative regional analysis, particularly between East and West Germany.
Main Results:
- Significant increases in population density and life expectancy observed, linked to decreased infant and maternal mortality.
- A notable rise in the average age at marriage and the incidence of single mothers since the 1980s.
- A long-term decline in fertility rates over the past 150 years, with regional variations.
Conclusions:
- Demographic parameters exhibit significant temporal and regional variations, highlighting differing societal and health trajectories.
- Declining mortality rates have driven increased life expectancy, while evolving social norms impact marriage and fertility patterns.
- The study underscores the dynamic nature of population changes and their complex interplay with societal factors.