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US Birth Rate vs US Military Expenditure
US Birth Rate and US Military Expenditure correlate at r = +0.87 over 65 years (1960–2024), p < 0.0001. With the time trend removed, r = +0.43. Interpret with caution.
Verdict: Interpret with caution. Much of the apparent link is driven by a shared time trend: r falls from 0.87 to 0.43 once the trend is removed.
- Pearson r
- +0.87
- p-value
- < 0.0001
- Years compared (n)
- 65 (1960–2024)
- 95% confidence interval
- 0.79 to 0.92
- Correlation with the time trend removed
- +0.43
Sources
- US Birth Rate (per 1,000 people): World Bank. US Birth Rate (World Bank indicator SP.DYN.CBRT.IN).
- US Military Expenditure (% of GDP): World Bank. US Military Expenditure (World Bank indicator MS.MIL.XPND.GD.ZS).
Related pairs
- Atmospheric Methane (global) vs US Birth Rate (r = -0.95)
- US Adult Obesity vs US Birth Rate (r = -0.93)
- US Adolescent Birth Rate vs US Birth Rate (r = +0.92)
- US Birth Rate vs US Resident Patent Applications (r = -0.92)
- US Infant Mortality vs US Military Expenditure (r = +0.91)
- US Fertility Rate vs US Birth Rate (r = +0.91)
Correlation does not imply causation. How the verdict is worked out.