Female 70-74 and 05-09 populations correlate
Comparing Population ages 70-74, female, per unit of GDP with Population ages 05-09, female, per unit of GDP across 212 countries, 2011–2025.
- Rank correlation
- +0.87
- Holding size constant
- +0.79
- Countries compared
- 212
- Period
- 2011–2025
What might link these
The correlation might be due to consistent fertility rates or healthcare systems across countries. A careful reader should consider education level as a potential confounder. The relationship could be influenced by various socio-economic factors.
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. This correlation does not necessarily imply a direct causal link between the two age groups.
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.