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Review your selected methods side by side; rows that differ are highlighted.
| Population Pyramid Analysis× | Life Table× | |
|---|---|---|
| Field | Demography | Demography |
| Family≠ | Process / pipeline | Survival analysis |
| Year of origin≠ | 1874 | 1984 |
| Originator≠ | Francis A. Walker (early age-sex diagrams); standard demographic practice | Demographic/actuarial tradition; Chiang |
| Type≠ | Graphical and tabular analysis of population age-sex structure | Age-structured mortality estimator |
| Seminal source≠ | Preston, S. H., Heuveline, P., & Guillot, M. (2001). Demography: Measuring and Modeling Population Processes. Blackwell. ISBN: 9781557864512 | Chiang, C. L. (1984). The Life Table and Its Applications. Robert E. Krieger Publishing. ISBN: 978-0-89874-565-2 |
| Aliases | Age-sex pyramid, Population age structure diagram, Age structure analysis, Nüfus Piramidi Analizi | Mortality Table, Actuarial Table, Survival Table, Yaşam Tablosu |
| Related≠ | 4 | 3 |
| Summary≠ | Population pyramid analysis is the description and interpretation of a population's age-sex structure through a back-to-back horizontal bar chart, with males on one side, females on the other, and age groups stacked from youngest at the bottom to oldest at the top. The shape of the pyramid encodes a population's fertility, mortality, and migration history and is the demographer's first diagnostic of whether a population is young and growing, ageing, or contracting. | A life table is a systematic, age-structured summary of the mortality experience of a population. It traces a hypothetical cohort of births — conventionally 100,000 — through successive age intervals, recording how many survive, how many die, and how many person-years are lived at each interval. The method was formalized in its modern probabilistic form by Chiang (1984), synthesizing centuries of actuarial and demographic practice into a rigorous statistical framework applicable to human and biological populations alike. |
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