Young female population shows a moderate link with older female population per GDP.
Comparing Population ages 50-54, female, per unit of GDP with Population ages 00-04, female, per capita across 211 countries, 2025–2025.
- Rank correlation
- +0.74
- Holding size constant
- +0.64
- Countries compared
- 211
- Period
- 2025–2025
What might link these
This suggests a potential demographic pattern, where higher birth rates of young females might be associated with the economic capacity to support older female populations. However, a strong link might also arise if both indicators are influenced by a country's overall fertility rates and healthcare systems, which are unmeasured confounders.
Why this is not proof of anything
This is a correlation across countries, not an experiment. It cannot show that either indicator causes the other, and both may simply follow a third thing. The correlation is weakened but still present after controlling for population and GDP, suggesting other underlying demographic or socio-economic factors may be at play.
The second figure above repeats the measurement with national population and income held constant. It is the more conservative number: a relationship that largely disappears there was mostly telling you that larger, richer countries have more of most things.
How this was measured
Both indicators were ranked across every country reporting each, and the two rankings compared — ranks rather than raw values, because a handful of very large countries can otherwise manufacture a relationship on their own. The calculation is arithmetic over figures already published on this site; the commentary above is drafted from the two indicator names and the resulting coefficients.