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US Adult Obesity vs US Inflation Rate

US Adult Obesity and US Inflation Rate correlate at r = -0.46 over 45 years (1980–2024), p = 0.0014. With the time trend removed, r = -0.33. Holds up after detrending.

Verdict: Holds up after detrending. Statistically significant (p = 0.0014) and the association survives trend removal (detrended r = -0.33). Correlation still isn't causation, but this one isn't an obvious artifact.

Pearson r
-0.46
p-value
0.0014
Years compared (n)
45 (1980–2024)
95% confidence interval
-0.67 to -0.19
Correlation with the time trend removed
-0.33

Sources

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Correlation does not imply causation. How the verdict is worked out.