Young girls per GDP linked to middle-aged men per capita
Comparing Population ages 40-44, male, per capita with Population ages 05-09, female, per unit of GDP across 211 countries, 2025–2025.
- Rank correlation
- -0.57
- Holding size constant
- -0.48
- Countries compared
- 211
- Period
- 2025–2025
What might link these
The correlation might reflect differences in population demographics or economic development stages across countries. A careful reader should consider education or healthcare access as potential underlying factors. Urbanization could be a confounder, influencing both indicators.
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 could mislead by implying a direct relationship between the two age and gender groups, when in fact it may be driven by broader societal or economic trends.
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.