Related Experiment Video
Updated: Jul 31, 2026

Inverse Probability of Treatment Weighting (Propensity Score) using the Military Health System Data Repository and National Death Index
Published on: January 8, 2020
[An attempt at quantifying the role of demographic factors determiningdependency ratios (I)]
Abstract:
This is the first part of a two-part article on the role of demographic factors determining dependency ratios. "The contribution presents, evaluates and compares four recently elaborated quantitative procedures for estimating the immediate determinants of changing age structures. Two of them are used for evaluating the immediate determinants of changing proportions of populations of different age-groups and two of them are used for showing the immediate determinants of changing (or different) mean ages of populations studied....[The author uses] data for the Hungarian male population at the beginning, at the end and in the middle of 1990."
Related Concept Videos
The Ratio of X Chromosome to Autosomes
Normal male Drosophila has a ratio of one X chromosome to two sets of autosomes. In contrast, normal female Drosophila...
Degrees of Freedom
For example, suppose there are three unknown numbers whose mean is 10; although we can freely assign values to the first and second numbers, the value of the last number can not be arbitrarily assigned.
Degrees of Freedom
For example, suppose there are three unknown numbers whose mean is 10; although we can freely assign values to the first and second numbers, the value of the last number can not be arbitrarily...
Applications of Life Tables
Relationship Growth
Modeling with Differential Equations