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US Health Expenditure vs US R&D Expenditure
US Health Expenditure and US R&D Expenditure correlate at r = +0.72 over 24 years (2000–2023), p < 0.0001. With the time trend removed, r = -0.28. Likely spurious (shared time trend).
Verdict: Likely spurious (shared time trend). Both series mostly just trend over time. After removing that trend the correlation collapses to -0.28 — the relationship is probably coincidental, not causal.
- Pearson r
- +0.72
- p-value
- < 0.0001
- Years compared (n)
- 24 (2000–2023)
- 95% confidence interval
- 0.45 to 0.87
- Correlation with the time trend removed
- -0.28
Sources
- US Health Expenditure (% of GDP): World Bank. US Health Expenditure (World Bank indicator SH.XPD.CHEX.GD.ZS).
- US R&D Expenditure (% of GDP): World Bank. US R&D Expenditure (World Bank indicator GB.XPD.RSDV.GD.ZS).
Related pairs
- Atmospheric Methane (global) vs US R&D Expenditure (r = +0.95)
- US Wind Power Generation vs US R&D Expenditure (r = +0.95)
- US Population Aged 65+ vs US R&D Expenditure (r = +0.95)
- US Solar Energy Consumption vs US R&D Expenditure (r = +0.94)
- US Marriage Rate vs US Health Expenditure (r = -0.94)
- US Energy Use per Capita vs US Health Expenditure (r = -0.94)
Correlation does not imply causation. How the verdict is worked out.